Akne ist eine der häufigsten Hauterkrankungen und zugleich eine der am besten behandelbaren. Sie bildet sich tief im Porenenkanal aus Talg, Verstopfungen, Bakterien und Entzündungen, sodass keine Menge an Waschen sie erreicht. Die topischen Grundmaßnahmen beheben das Problem bei den meisten Menschen: Ein Retinoid zur Beseitigung der Porenverstopfung und Benzoylperoxid zur Beruhigung der entzündeten Stellen – vorausgesetzt, man gewährt ihnen die acht bis zwölf Wochen, die sie für ihre Wirkung benötigen. Die Ernährung spielt eine geringere Rolle: Eine Ernährungsweise mit niedriger glykämischer Last und ein Rückgang des Konsums von Magermilch sind beide hilfreich.
Mehrere gängige Überzeugungen sind falsch. Schokolade, fettiges Essen und ein unreines Gesicht wurden untersucht und treiben die Akne nicht an. Die tiefe, zystische Form kann lebenslange Narben hinterlassen, weshalb sie frühzeitig einen Dermatologen aufsuchen sollte.
Practice Ranking
Every practice we track for Acne: what clears it, in order, ranked by how well the evidence supports it for this condition. Strength describes the evidence, not our endorsement.
4 practices · 1 to start with
| # | Practice | Evidence | Type | Cost | Effort | Results In | Add to plan |
|---|---|---|---|---|---|---|---|
| 1 | Tretinoin: What It Does for Sun-Aged Skin and Acne, How to Use It, and Who Should Not Topical retinoids are the backbone of acne care; the OTC adapalene works too, and both unclog pores and calm inflammation over 8 to 12 weeks. | Strong | Self-Directed | $ to $$ | Easy to Moderate | Weeks to Months | |
| 2 | Whole Foods and Ultra-Processed Foods: What the Evidence Shows and How to Eat Well Trading refined carbs and sugar for whole foods lowered lesion counts, and heavy skim-milk drinkers had about 1.8 times the odds of acne. | Moderate | Self-Directed | $ to $$ | Moderate to Hard | Weeks to Months | |
| 3 | Zinc: What It Helps, the Right Dose, and the Copper Ceiling Oral zinc modestly reduces inflamed acne and is cheap, though it works less well than a retinoid. | Emerging | Supplement | $ | Easy | Days | |
| 4 | Omega-3 and Fish Oil: Clear on Triglycerides, Mixed on the Heart A high-dose omega-3 course cut lesions in one small trial, a reasonable adjunct rather than a mainstay. | Emerging | Supplement | $ to $$ | Easy | Weeks to Months | |
Default order puts the best-supported practices first, with self-directed care ahead of clinical options. Click any row to open the practice.
What Acne Actually Is
Acne is a disorder of the oil gland and its follicle, the tiny pit each hair grows from. Four things go wrong inside the pore at once:
- The gland makes more oil (sebum), of an altered kind.
- The pore's lining over-produces sticky cells that plug the opening.
- Cutibacterium acnes multiplies in the trapped oil.
- The follicle wall inflames, turning a hidden plug into a red, sore spot.
A blocked but quiet pore is a whitehead or blackhead. Once it inflames it becomes a papule, a pustule, or, at the deep end, a painful nodule or cyst.
Hormones set the process off. Androgens, the group that includes testosterone, stimulate the oil gland. Insulin and IGF-1 amplify that signal. That is why acne arrives with puberty, and why the diet links below run through the same hormonal pathway. Acne also runs in families, and how strongly skin responds to normal hormone levels is largely inherited. Not one of these four causes is dirt, so acne forms below the surface and can't be scrubbed away.
What Clears It, In Order
In a network meta-analysis of 179 randomized trials, a retinoid combined with benzoyl peroxide cleared about 26% more lesions than placebo. A treatment needs eight to twelve weeks to show, and the usual reason one disappoints is quitting it too soon.
The Research & Studies
Everything here is based on the research we have collected and checked, sorted into groups and ordered with the strongest evidence first. Click any claim to open the studies behind it.
Skin And Hair
Ein Retinoid plus Benzoylperoxid beseitigte etwa 26 % mehr Läsionen als Placebo
Retinoid-Cremes und -Gele sind eine Erstlinienbehandlung bei Akne. Sie öffnen verstopfte Poren und werden von dermatologischen Leitlinien mit starkem Empfehlungsgrad empfohlen. Die Kombination mit Benzoylperoxid beseitigt spürbar mehr Unreinheiten als jedes der beiden allein.
Die Leitlinie der American Academy of Dermatology aus dem Jahr 2024 spricht eine starke Empfehlung für topische Retinoide aus (Adapalen, Tretinoin, Tazaroten). In einer Netzwerk-Metaanalyse von 179 randomisierten Studien reduzierte ein topisches Retinoid in Kombination mit Benzoylperoxid die Gesamtzahl der Läsionen bei leichter bis mittelschwerer Akne um etwa 26 % mehr als Placebo (mittlere Differenz 26.16 %, 95-%-Glaubwürdigkeitsintervall 16.75 bis 35.36). Measured in: Adults and adolescents with acne across the trials underpinning a GRADE-based guideline and a network meta-analysis. Retinoide reizen die Haut und können sie in den ersten Wochen austrocknen oder röten; in den Studien wurden sie schlechter vertragen als Placebo. Die meisten Menschen kommen darüber hinweg, indem sie jeden zweiten Abend beginnen und eine Feuchtigkeitscreme verwenden.
The studies · 2
Reynolds et al., Guidelines of care for the management of acne vulgaris · J Am Acad Dermatol 2024;90(5):1006.e1-1006.e30
Mavranezouli et al., systematic review and network meta-analysis of treatments for acne vulgaris · Br J Dermatol 2022;187(5):639-649
Counts once: this finding and 3 others here come from the same source, so they are one body of evidence, not separate confirmations.
Benzoylperoxid verbesserte Akne mehr als Placebo (Risikoverhältnis 1.27) bei 29,592 Personen
Benzoylperoxid ist eine bewährte, frei verkäufliche Aknebehandlung, die zudem das Aknebakterium abtötet, ohne Resistenzen zu fördern. Es wirkt etwa so gut wie manche verschreibungspflichtigen Optionen; der Hauptnachteil ist Trockenheit und Brennen.
Eine Cochrane-Übersichtsarbeit von 120 Studien (29,592 Teilnehmer) fand Benzoylperoxid wirksamer als Placebo bei der teilnehmerbeurteilten Akne-Verbesserung (Risikoverhältnis 1.27, 95 %-KI 1.12 bis 1.45) und keinen bedeutsamen Unterschied zu Adapalen oder Clindamycin. Abbruch durch Irritation war höher als unter Placebo (RR 2.13, 95 %-KI 1.55 bis 2.93). Measured in: 29,592 participants randomized across 116 trials, mostly mild to moderate acne, mean age 18 to 30. Trockenheit, Rötung und Brennen sind anfangs häufig und sind der übliche Grund, warum Menschen aufhören. Eine niedrigere Stärke (2.5 bis 5 %), zunächst einmal täglich aufgetragen, hält die meisten dabei. Es bleicht Stoff, sodass es Handtücher und Kissenbezüge fleckt.
The study · 1
Yang et al., Topical benzoyl peroxide for acne (Cochrane review) · Cochrane Database Syst Rev 2020;3:CD011154
Isotretinoin bietet die beste Chance auf dauerhafte Klärung schwerer Akne
Isotretinoin (bekannt unter einem alten Markennamen) ist das wirksamste Akne-Medikament und dasjenige, das schwere Akne dauerhaft beseitigen kann. Da es schwere Geburtsfehler verursacht, wird es nur von einem Spezialisten mit Schwangerschaftsverhütung verschrieben.
Die Dermatologie-Leitlinie 2024 empfiehlt orales Isotretinoin stark für Akne, die schwer ist, narbend, psychische Belastung verursacht oder auf Standard-Oral- oder Topikaltherapie versagt. Es bietet die beste Chance auf dauerhafte Klärung, und weil es teratogen ist, erfordert es Spezialistenaufsicht und strenge Schwangerschaftsverhütung. Measured in: Moderate-to-severe acne across the guideline evidence base and a comprehensive isotretinoin review. Es erfordert einen Dermatologen, Bluttestüberwachung und rigorose Verhütung für alle, die schwanger werden könnten. Trockenheit der Lippen und Haut ist nahezu universell; schwerwiegende unerwünschte Ereignisse sind selten und die meisten Effekte sind reversibel.
Dies ist Information, keine Verschreibung. Das schwere Ende der Akne hat eine definitive Behandlung, sodass eine frühe Überweisung zum Dermatologen gerechtfertigt ist. Jahre partieller Maßnahmen lassen narbende Akne aktiv.
The studies · 2
Reynolds et al., Guidelines of care for the management of acne vulgaris · J Am Acad Dermatol 2024;90(5):1006.e1-1006.e30
Bagatin & Costa, The use of isotretinoin for acne: dosing, surveillance, and adverse effects · Expert Rev Clin Pharmacol 2020;13(8):885-897
Counts once: this finding and 3 others here come from the same source, so they are one body of evidence, not separate confirmations.
Die kombinierte Pille beseitigte mehr Gesichtsakne als Placebo bei Frauen
Bei Frauen senkt die kombinierte Anti-Baby-Pille Akne, indem sie die Wirkung der Hormone verringert, die die Talgproduktion antreiben. Studien zeigen, dass sie sowohl Pickel als auch Mitesser besser beseitigt als Placebo.
Eine Cochrane-Übersichtsarbeit randomisierter Studien fand, dass kombinierte orale Kontrazeptivapillen entzündliche und nicht-entzündliche Gesichtsläsionen, Schweregrade und selbstbeurteilte Akne bei Frauen gegenüber Placebo reduzierten. Die Dermatologie-Leitlinie 2024 gibt ihnen eine bedingte Empfehlung. Measured in: Women across randomized placebo-controlled and comparative trials in a Cochrane review. Sie eignet sich für Frauen, die auch Verhütung wollen, braucht einige Zyklen zum Wirken und trägt die üblichen Pillenkonsiderationen wie ein kleines Thromboserisiko, sodass die Wahl individuell und mit einem Arzt getroffen wird.
The studies · 2
Arowojolu et al., Combined oral contraceptive pills for treatment of acne (Cochrane review) · Cochrane Database Syst Rev 2007;(1):CD004425
Reynolds et al., Guidelines of care for the management of acne vulgaris · J Am Acad Dermatol 2024;90(5):1006.e1-1006.e30
Counts once: this finding and 3 others here come from the same source, so they are one body of evidence, not separate confirmations.
Spironolacton verbesserte Akne bei 82 % der Frauen gegenüber 63 % unter Placebo
Spironolacton, eine Tablette, die die Wirkung von Androgenen blockiert, hilft erwachsenen Frauen bei Akne, wobei der Nutzen bis etwa sechs Monaten am deutlichsten ist. In der Hauptstudie fühlten die meisten Frauen, dass ihre Akne sich verbessert hat.
In der pragmatischen randomisierten SAFA-Studie (342 analysierte Frauen, 50 bis 100 mg/Tag) berichteten mehr unter Spironolacton über Akne-Verbesserung als unter Placebo bis Woche 24 (82 % vs. 63 %, Odds Ratio 2.72, 95 %-KI 1.50 bis 4.93), und der dermatologisch bewertete Behandlungserfolg in Woche 12 war 19 % vs. 6 %. Kopfschmerzen waren etwas häufiger (20 % vs. 12 %). Measured in: 342 adult women (mean age 29) with persistent facial acne in England and Wales. Es ist für Frauen, der Nutzen baut sich langsam über Monate auf, und es wird in der Schwangerschaft vermieden. Milde Nebenwirkungen umfassen Kopfschmerzen und bei höheren Dosen häufigeres Wasserlassen.
The study · 1
Santer et al., Effectiveness of spironolactone for women with acne vulgaris (SAFA trial) · BMJ 2023;381:e074349
Azelainsäure bekämpfte Akne etwa so gut wie ein Retinoid (Risikoverhältnis 0.94)
Azelainsäure ist ein sanfteres Topikum, das Pickel etwa so gut bekämpft wie ein Retinoid und auch die braunen Flecken verblasst, die Akne hinterlässt. Es ist eines der wenigen Akne-Behandlungen, die in der Schwangerschaft als sicher gelten.
In einer Cochrane-Übersichtsarbeit war Azelainsäure bei selbstbeurteilter Verbesserung wahrscheinlich etwas weniger wirksam als Benzoylperoxid (Risikoverhältnis 0.82, 95 %-KI 0.72 bis 0.95), aber etwa gleich wie das Retinoid Tretinoin (RR 0.94, 95 %-KI 0.78 bis 1.14). Die meisten Studienteilnehmer waren Frauen. Measured in: Mostly female participants aged 12 to 30 across 49 topical-treatment trials in a Cochrane review. Es kann anfangs leichtes Kribbeln oder Jucken verursachen, und es wirkt etwas weniger gut als Benzoylperoxid, sodass es oft bei empfindlicher Haut, für die Flecken (postinflammatorische Hyperpigmentierung) oder in der Schwangerschaft gewählt wird.
Who this may not transfer to:Participants were female-weighted; azelaic acid is used in both sexes and the mechanism is not sex-specific.
The study · 1
Liu et al., Topical azelaic acid, salicylic acid, nicotinamide, sulphur, zinc and fruit acid for acne (Cochrane review) · Cochrane Database Syst Rev 2020;5:CD011368
Eine glykämisch niedrige Diät senkte Akne-Läsionen um 23.5 gegenüber 12.0 bei der Kontrolldiät
Weniger hochzucker- und hochraffinierte-Kohlenhydrat-Lebensmittel zu essen verringert Akne moderat. In der Hauptstudie beseitigten junge Männer mit einer glykämisch niedrigen Diät über drei Monate etwa doppelt so viele Pickel wie die Vergleichsgruppe.
In einer 12-wöchigen randomisierten Studie mit 43 jungen Männern senkte eine glykämisch niedrige Diät die Gesamtanzahl der Akne-Läsionen um 23.5 gegenüber 12.0 bei der Kontrolldiät (P=0.03) und verbesserte die Insulinsensitivität. Die Gruppe mit glykämisch niedriger Diät verlor auch mehr Gewicht, was die Autoren nicht vollständig vom Diäteffekt trennen konnten. Measured in: 43 male acne patients aged 15 to 25, 12-week parallel dietary intervention. Die Gruppe mit glykämisch niedriger Diät verlor auch Gewicht, sodass ein Teil des Nutzens Gewichtsverlust sein könnte, nicht der Nahrungsmitteltausch selbst, und die Studie war nur bei jungen Männern.
Who this may not transfer to:The trial enrolled only young men. Whether the same size of benefit holds for women, who make up most adult acne, has not been tested here, though the insulin and IGF-1 mechanism it works through is not sex-specific.
The study · 1
Smith et al., A low-glycemic-load diet improves symptoms in acne vulgaris patients: a randomized controlled trial · Am J Clin Nutr 2007;86(1):107-115
Skim milk drinkers had about 1.8 times the odds of acne (odds ratio 1.82)
Mehr Milch zu trinken, insbesondere Magermilch, ist mit mehr Akne verbunden; Joghurt und Käse sind es nicht. Der Effekt ist moderat, sodass eine Reduktion der Milch einen vernünftigen Versuch darstellt, wenn Ihre Akne hartnäckig ist.
Eine Metaanalyse von Beobachtungsstudien fand höhere Akne-Odds bei Milchprodukten insgesamt (Odds Ratio 2.61, 95 %-KI 1.20 bis 5.67), Gesamtmilch (OR 1.48, 95 %-KI 1.31 bis 1.66) und Magermilch (OR 1.82, 95 %-KI 1.34 bis 2.47), während Joghurt und Käse keine Assoziation zeigten. Measured in: Pooled observational studies (case-control and cross-sectional) of milk and dairy intake and acne. What could explain it instead: Dietary intake was self-recalled (recall bias), milk consumption tracks with other lifestyle and dietary patterns, and reverse causation is possible if people change their diet because of their acne.. These are observational studies: they show that people who drink more milk have more acne, but that is a link rather than a demonstrated cause, and diet was self-recalled.
The study · 1
Aghasi et al., Dairy intake and acne development: a meta-analysis of observational studies · Clin Nutr 2019;38(3):1067-1075
Washing more often did not reduce acne
Washing your face more often does not clear acne, and washing too little can make it a bit worse. Twice a day with a gentle cleanser is the sweet spot; scrubbing and over-washing just irritate the skin.
A single-blinded randomized trial in men with mild-to-moderate acne compared washing once, twice or four times daily for six weeks. There was no significant difference between the groups overall; washing twice daily improved comedones and non-inflammatory lesions, while washing only once daily worsened redness, papules and inflammatory lesions. Measured in: Men with mild-to-moderate acne, randomized to once, twice or four-times-daily washing for six weeks. The trial was small and in men only, and it tested washing frequency, not harsh scrubbing directly, so the practical read is gentle cleansing twice a day, not more.
Who this may not transfer to:Tested in men only. There is no strong reason gentle twice-daily washing would differ for women, but the frequency comparison itself was not repeated in women here.
The study · 1
Choi, Lew & Kimball, randomized controlled trial of the effect of face washing on acne vulgaris · Pediatr Dermatol 2006;23(5):421-427
Treating severe acne early prevents permanent scars
Deep, cystic acne can scar for life, and scars are much harder to fix than the acne itself. Seeing a dermatologist early for severe acne is the way to prevent that.
Nodular and cystic acne can leave permanent scars, and guidelines recommend early, effective treatment (including isotretinoin) for acne that is severe, scarring or psychologically burdensome, because scars are far harder to treat than active acne and become less avoidable the longer severe acne runs. Measured in: Severe and scarring acne across the guideline evidence base and an isotretinoin review. Not all acne scars, and mild acne rarely does. The case for moving quickly applies to the deep, painful, nodular kind and to anyone already seeing marks form.
The studies · 2
Reynolds et al., Guidelines of care for the management of acne vulgaris · J Am Acad Dermatol 2024;90(5):1006.e1-1006.e30
Bagatin & Costa, The use of isotretinoin for acne: dosing, surveillance, and adverse effects · Expert Rev Clin Pharmacol 2020;13(8):885-897
Counts once: this finding and 3 others here come from the same source, so they are one body of evidence, not separate confirmations.
Clascoteron-Creme klärte Akne bei etwa doppelt so vielen Menschen wie eine Scheincreme (etwa 19 % gegenüber 8 %)
Clascoteron ist eine neuere verschreibungspflichtige Creme, die Androgene in der Haut blockiert, das erste Topikum dieser Art. In zwei Studien mit 1,440 Menschen erreichten über zwölf Wochen etwa doppelt so viele damit klare oder fast klare Haut (etwa 19 %) wie mit einer Scheincreme (etwa 8 %). Anders als Spironolacton wirkt es als Creme und wird gleichermaßen von Männern und Frauen angewendet.
Clascoteron (Markenname Winlevi) hemmt lokal den Androgenrezeptor in Talgdrüse und Follikel, denselben hormonellen Treiber, auf den orales Spironolacton und die kombinierte Pille wirken, jedoch auf die Haut aufgetragen. Da es lokal wirkt, ist es sowohl für Männer als auch für nicht schwangere Frauen zugelassen, während Spironolacton nur bei Frauen eingesetzt wird. Langzeitdaten und direkte Vergleichsstudien gegenüber den etablierten topischen Mitteln sind noch begrenzt.
Who this may not transfer to:Both males and nonpregnant females aged 9 and over were enrolled, about 62% female; as a topical androgen-receptor blocker it is used in both sexes, unlike oral spironolactone.
The study · 1
Hebert et al., Efficacy and safety of topical clascoterone cream, 1%, for treatment in patients with facial acne: two phase 3 randomized clinical trials · JAMA Dermatol 2020;156(6):621-630
Chocolate and greasy food have not been shown to cause acne
The old idea that chocolate, greasy food and a dirty face cause acne does not hold up. Acne comes from hormones, oil and inflammation inside the follicle; the diet links that hold up are to high-glycemic-load foods and milk. Chocolate has only small, mixed studies behind it.
Systematic reviews of diet and acne find the most consistent signals are high glycemic load and dairy; reviews also list fatty food and chocolate as possible contributors, with the chocolate-specific evidence still unresolved. One small trial (25 acne-prone men eating 25 g of 99% dark chocolate daily for four weeks) reported worse acne scores, but the evidence on chocolate specifically remains limited and inconsistent. Measured in: Systematic review of diet-and-acne evidence 2009 to 2020, plus one small controlled chocolate trial in men. This is about the received wisdom, not any single food. Someone who notices their own skin reacts to a specific food can act on that. The diet signals that hold up are glycemic load and milk, so cutting out chocolate addresses the wrong factor.
The studies · 2
Dall'Oglio et al., Diet and acne: review of the evidence from 2009 to 2020 · Int J Dermatol 2021;60(6):672-685
Vongraviopap & Asawanonda, Dark chocolate exacerbates acne · Int J Dermatol 2016;55(5):587-591
Zinc lowered inflamed acne spots as a low-cost add-on
Zinc, taken by mouth or applied, modestly reduces inflamed acne spots, and people with acne tend to run low on it. It is a reasonable low-cost add-on, not a main treatment.
A systematic review and meta-analysis found people with acne have significantly lower serum zinc than controls, and zinc treatment (oral or topical) reduced mean inflammatory papule counts compared with no zinc, whether used as monotherapy or an add-on, with no increase in side effects overall. Measured in: Acne patients and controls across the trials pooled in a PRISMA systematic review and meta-analysis. The trials are small and varied in the zinc form and dose. Oral zinc at higher doses can upset the stomach and, taken long term, interfere with copper absorption.
The study · 1
Yee et al., Serum zinc levels and efficacy of zinc treatment in acne vulgaris: a systematic review and meta-analysis · Dermatol Ther 2020;33(6):e14252
Omega-3 (2,000 mg EPA and DHA) reduced acne lesions in a 10-week trial
Fish-oil style omega-3 supplements reduced acne spots in an early trial, probably by calming inflammation. The signal is promising but rests on small studies.
In a 10-week randomized controlled trial of 45 people with mild-to-moderate acne, both omega-3 (2,000 mg of EPA and DHA) and gamma-linolenic acid significantly reduced inflammatory and non-inflammatory lesions, with reduced inflammation and lower interleukin-8 staining on skin biopsy. Measured in: 45 participants with mild-to-moderate acne, 10-week randomized dietary intervention in Korea. One small trial is not enough to call this established. Omega-3 is a low-risk add-on, not a proven acne treatment.
The study · 1
Jung et al., Effect of dietary supplementation with omega-3 fatty acid and gamma-linolenic acid on acne vulgaris: a randomised, double-blind, controlled trial · Acta Derm Venereol 2014;94(5):521-525
How it works
Acne starts inside the pore from oil, clogging, bacteria and inflammation, not dirt
Acne starts inside the pore, not on the surface. Hormones ramp up oil, the pore clogs, the acne bacterium multiplies, and the area inflames. That is why it is not caused by dirt and cannot be washed or scrubbed away.
Acne arises from four linked factors in the oil gland and follicle: excess and altered sebum, sticky over-keratinization blocking the pore, the skin organism Cutibacterium acnes, and inflammation. Androgens, insulin and insulin-like growth factor-1 are the main hormonal drivers. This is the well-established mechanism, and it explains why effective treatments target oil, the clog, the bacterium, and inflammation. Surface cleanliness is not part of the chain, so cleaning harder changes little.
The study · 1
Cong et al., From pathogenesis of acne vulgaris to anti-acne agents · Arch Dermatol Res 2019;311(5):337-349
Measurement And Diagnosis
Acne with irregular periods and excess hair can signal PCOS
Acne on its own is usually just acne. But in a woman with irregular periods and extra hair growth, it can be a sign of PCOS, and a sudden severe flare with virilization signs deserves a hormone check.
In women, acne together with irregular periods, excess facial or body hair, or scalp hair thinning can signal polycystic ovary syndrome or another cause of high androgens, which the international evidence-based guideline treats as a reason for evaluation. A sudden, severe onset with a deepening voice or rapid virilization needs prompt work-up for a more serious androgen source. Measured in: Adolescent and adult women, per an international evidence-based PCOS guideline. Most acne does not mean a hormone disorder. This is about the specific combination of acne with other androgen signs, not acne by itself.
The study · 1
Pena et al., Adolescent polycystic ovary syndrome according to the international evidence-based guideline · BMC Med 2020;18:72
The Treatments
The topical backbone pairs a retinoid with benzoyl peroxide. Topical retinoids (adapalene, tretinoin, tazarotene) loosen the plug that clogs the pore, and dermatology guidelines back them most strongly. Benzoyl peroxide clears inflamed spots and kills C. acnes without breeding resistance. A Cochrane review of 120 trials and 29,592 people found it beat placebo (risk ratio 1.27, about 27% more people improved).
Antibiotics, whether cream or pill, ease inflamed acne, but the effect is short-lived and they should never be used on their own. More than half of C. acnes strains now resist topical antibiotics in many countries. Guidelines therefore pair any antibiotic with benzoyl peroxide to slow resistance. They also hold oral courses to about three months, while the retinoid and benzoyl peroxide take over the lasting work. An antibiotic taken alone for many months is the pattern that breeds resistance and eventually stops working.
For women, two tablets lower androgens at the source. The combined birth-control pill lowers that signal and clears red spots and blackheads better than placebo over a few cycles. Spironolactone blocks androgens: in the SAFA trial, 82% of women reported improvement by six months against 63% on placebo, with the benefit building slowly. The same androgen excess links acne to polycystic ovary syndrome in some women.
Azelaic acid, a gentler option, clears spots about as well as a retinoid (risk ratio 0.94 against tretinoin). It also fades the brown marks acne leaves behind, and it is one of the few acne treatments safe in pregnancy.
Isotretinoin works directly on the oil gland and dampens all four drivers at once. That is why it offers the best chance of lasting clearance, and often clears severe acne for good. Doctors reserve it for the severe end: deep, scarring acne, acne causing real distress, or acne that fails standard therapy.
Deep, nodular acne can scar permanently, and the scars are far harder to fix than the acne itself, so treat it early.
How It Works
Each proven treatment breaks a different link in the chain from oil to inflamed spot:
- A retinoid loosens the sticky plug so pores stop clogging.
- Benzoyl peroxide clears the trapped bacteria and settles the redness.
- Antibiotics lower the bacterial and inflammatory load for a while.
- The hormonal treatments turn down the androgen signal at the top of the chain, for women whose acne flares with the menstrual cycle.
- Isotretinoin shrinks the oil gland itself and works on every driver at once, the one treatment that can end the process for good.
Where Diet Fits
A whole-foods, lower-glycemic way of eating works through the same insulin and IGF-1 pathway that hormones use. In a twelve-week trial of young men, a low-glycemic-load diet, lower in sugar and refined carbohydrate, cut acne spots by 23.5 on average. The ordinary diet cut them by 12.0. Most of that sugar and refined carbohydrate reaches people through ultra-processed food. It supplies about 57% of the calories the average American adult eats, the industrial diet behind much metabolic disease.
Milk shows a similar signal. Across observational studies, people who drink more milk have higher odds of acne. Skim milk shows the strongest association (odds ratio 1.82), while yogurt and cheese show none. Both effects are modest, so a lower-glycemic diet and less milk are low-risk things to try if your acne is stubborn.
Two more have early support. Zinc lowers inflamed spots, and people with acne tend to run low on it. In an early trial, 2,000 mg of omega-3 as EPA and DHA reduced acne lesions over ten weeks, probably by calming inflammation.
What Does Not Cause Acne
Some old suspects do not hold up. Chocolate and greasy food have not been shown to cause acne. The only dietary links that hold up in large reviews are glycemic load and dairy. The case against chocolate rests on small, conflicting studies, including one where 25 acne-prone men ate dark chocolate every day and their skin got worse. Someone who notices their own skin flaring after a particular food can act on that. The general suspicion of chocolate and fatty food does not match the evidence.
Washing harder does the opposite of what people expect. A six-week trial compared washing once, twice, or four times a day:
- Overall there was no difference between the groups.
- Washing twice a day helped blackheads and whiteheads most.
- Washing only once a day left more redness and inflamed spots.
Scrubbing and over-washing strip and irritate the skin, and that irritation inflames acne. Gentle cleansing twice a day is the amount that helps. Picking and squeezing drive inflammation and scarring. Home remedies such as toothpaste and lemon juice have not been shown to help and can irritate the skin.
Go Deeper
- Polycystic ovary syndrome (PCOS): the hormonal condition behind much adult-female acne, and the other signs (irregular periods, excess hair) that point to it.
- Whole foods and a lower-glycemic diet: the diet pattern behind the glycemic-load link, and how to lower refined carbohydrate without a restrictive plan.
- Insulin and glucose: the blood-sugar and IGF-1 pathway that connects high-glycemic food and milk to the oil gland.
- Zinc: the low-cost mineral add-on, its dose range, and where it helps.
- Omega-3 fish oil: the anti-inflammatory supplement with an early acne signal.
- Hormonal health: the wider goal that acne, cycles, and androgens all sit within.
Cautions
Extra restraintEverything to be aware of is here, in one place. This practice suits most healthy people; a few situations call for real care.
Mehr als die Hälfte der Akne-Bakterien sind jetzt gegen topische Antibiotika resistent, sodass sie mit Benzoylperoxid kombiniert werden
Topische und orale Antibiotika reduzieren entzündliche Akne, aber eine systematische Übersichtsarbeit berichtete, dass mehr als 50 % der Cutibacterium-acnes-Stämme in vielen Ländern gegenüber topischen Makroliden resistent sind. Leitlinien empfehlen, jedes Antibiotikum mit Benzoylperoxid zu kombinieren, zu oralen Langzeit-Antibiotika immer Benzoylperoxid hinzuzufügen und orale Kuren auf etwa drei Monate zu begrenzen. Ein allein oder monatelang verwendetes Antibiotikum ist das Muster, das Resistenz erzeugt und schließlich aufhört zu wirken. Es soll Zeit kaufen, während ein Retinoid und Benzoylperoxid die dauerhafte Arbeit leisten.Walsh, Efthimiou & Dreno, systematic review of antibiotic resistance in acneReynolds et al., Guidelines of care for the management of acne vulgaris
Isotretinoin and pregnancy: the one non-negotiable
Isotretinoin causes severe birth defects. Anyone who could become pregnant takes it only under a formal pregnancy-prevention program (iPLEDGE in the United States). The program requires reliable contraception plus pregnancy tests before, during, and after treatment. It also calls for blood-test monitoring of the liver and blood fats. Dry lips and skin are near-universal and manageable. Mood changes are worth watching for and reporting, so a dermatologist prescribes and follows it. Serious adverse events are rare, and most effects reverse when the course ends.
The hormonal tablets are for women and avoided in pregnancy
The combined pill and spironolactone both act on androgens and are not used in pregnancy. The pill carries the usual considerations, including a small clot risk. Spironolactone can raise potassium and increase urination at higher doses. Both are chosen and monitored with a prescriber.
Topicals irritate before they settle
Retinoids and benzoyl peroxide commonly dry, redden, or sting the skin in the first few weeks. Starting every other night, using a lower strength, and adding a plain moisturizer keeps most people on them. Retinoids increase sun sensitivity, so daytime sunscreen goes with them. Benzoyl peroxide bleaches fabric and marks towels and pillowcases.
A prescriber weighs the pill, spironolactone, and isotretinoin against your history, so the options match your skin and your risks.
When to See Someone
Most acne is handled with the topicals and habits above and never needs more. These are the situations where a professional, usually a dermatologist, is the right next step, and two of them need prompt care:
- Deep, painful nodules or cysts, or acne already leaving scars or brown marks. Nodular acne can leave permanent scars that are much tougher to treat than the acne, so start early. Isotretinoin works best before the scars form.
- Acne that has not improved at all after about three months of over-the-counter treatment, which usually means a prescription regimen is the next step.
- In a woman, acne together with irregular periods, excess facial or body hair, or scalp thinning, which can point to polycystic ovary syndrome or another hormonal cause worth investigating.
- A sudden, severe onset with a deepening voice or rapid new hair growth (virilization), which needs a hormonal work-up; a skin cream will not address it.(seek urgent care)
- A very sudden, severe, ulcerating breakout with fever or aching joints. This can be acne fulminans and needs prompt specialist care.(seek urgent care)
Acne is common and treatable, and most people never need more than one or two well-chosen treatments and the patience to let them work. For deep or scarring acne, a dermatologist can start isotretinoin before scars form.
Common Questions
What is the best treatment for acne?
For most people it is a topical retinoid combined with benzoyl peroxide, used together every day and given eight to twelve weeks to work. The retinoid unclogs pores while benzoyl peroxide settles inflamed spots and kills the acne bacterium. Together they outperformed placebo by about 26% more lesions cleared in a network meta-analysis of 179 trials. If that is not enough, the next steps are a short antibiotic course alongside benzoyl peroxide, a hormonal option for women, or a dermatologist referral for the severe end.
Does chocolate cause acne?
Chocolate has never been shown to cause acne. Across systematic reviews the diet signals that hold up are high glycemic load and milk. Chocolate rests on only small, mixed studies, including one trial of 25 acne-prone men eating dark chocolate daily that reported worse scores. Greasy food has not been shown to drive it either. If your own skin reacts to a particular food, you can act on that, but the general suspicion of chocolate does not match the evidence.
Do I need to wash my face more often?
No. When a six-week trial had people cleanse once, twice, or four times daily, it found no overall difference. Cleansing a single time each day left the most redness and inflamed spots, while four washes added nothing. Scrubbing and over-washing irritate the skin and can worsen acne. Washing gently twice daily with a mild cleanser is enough, and acne is not caused by a dirty face, so scrubbing harder does nothing for it.
Does diet affect acne?
A little, and in specific ways. A low-glycemic-load diet cut acne lesions by 23.5 against 12.0 on a control diet over twelve weeks in young men. Drinking more milk, skim milk in particular (odds ratio 1.82), is linked to more acne, while yogurt and cheese are not. These are modest effects working through insulin and IGF-1. Lowering refined carbohydrate and trying less milk are reasonable things to test if your acne is stubborn, alongside the topical treatments as add-ons.
How long does acne treatment take to work?
Eight to twelve weeks for most treatments before you can judge them. Acne clears slowly because a new spot starts as a microscopic plug weeks before it surfaces, so a treatment has to prevent lesions that are already forming underneath. The most common reason a treatment seems to fail is stopping it after two weeks. Give it the full course and judge it at three months.
When should I see a dermatologist about acne?
When acne is deep, painful, and cystic, when it is already leaving scars or marks, or when it has not improved at all after about three months of over-the-counter treatment. See one early for the severe, scarring kind, because isotretinoin works best before scars form, and scars are much harder to undo than active acne. A woman with acne alongside irregular periods and excess hair growth is worth assessing for polycystic ovary syndrome. A sudden severe flare with virilization signs needs a prompt hormonal work-up.
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All 23 sources on this page independently checked and cross-referenced.
Thomas Dehli, Founder & Editor, Sacred Lotus
Sacred Lotus has published Chinese medicine reference material since 2001. Integrative pages are held to the same standard as the herb and formula library: cite the source, grade the claim at its real strength, and say where the research has not looked. This page is educational and it is not medical advice. Last reviewed and updated August 9, 2026.
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