Hai Shen (Sea Cucumber, Sea Slug, Trepang)

Chinese Herb Actions

Chinese Herb Dosage

• What is the typical dosage of Hai Shen (Sea Cucumber)?

  Roughly 15–30 g in decoction, or 30–60 g when eaten as a food tonic — a notably large range compared with most tonic herbs, reflecting its use as a whole dried food (reconstituted, then simmered or braised, often in soups) as much as a medicinal decoction. Chen & Chen’s materia medica gives the higher, food-tonic-style 30–60 g range, nearly ten times the typical dose of many other Kidney-yang tonics.

  Preparation notes:

  • Decoction — standard materia medica references give ~15–30 g.
  • Food/dietary use — dried Hai Shen is soaked and reconstituted, then simmered or braised (commonly in soups or congee); Chen & Chen note 30–60 g as appropriate in this culinary/tonic context.
  • External use — pounded to a powder for topical application, per TCM herb-guide references.

  Source: Chen & Chen, Chinese Medical Herbology and Pharmacology (dosage consensus, food-tonic range); multiple online sources (decoction range, preparation). Reference only — not a prescription.

Chinese Herb Contraindications & Cautions

• Are there cautions for Hai Shen (Sea Cucumber)?

  As a rich, salty animal/marine food-tonic, Hai Shen is best avoided in patterns of damp-phlegm, digestive weakness, or acute excess/damp-heat — the same general caution applied to other cloying, richly nourishing tonics, which can burden a weak Spleen/Stomach or aggravate dampness and stagnation. It should be used under a qualified practitioner or with dietary guidance, particularly for patients with digestive weakness.

  • Seafood/marine allergy (reference note) — Hai Shen is a marine invertebrate food product; people with shellfish or other marine-food allergies should avoid it, and any known seafood allergy should be disclosed to a practitioner.
  • Animal-derived (reference note) — as a whole marine animal product, Hai Shen is not suitable for vegetarians or vegans; this should be disclosed as a sourcing fact, not a usage instruction.
  • Wild-harvest sustainability (reference note) — the species recorded in this reference, Apostichopus (Stichopus) japonicus, has been assessed by the IUCN Red List as Endangered, with wild populations reported to have declined by roughly 60% or more over 30–50 years due to overharvesting; most commercial supply today comes from hatchery/mariculture production rather than wild fisheries. This is a neutral sourcing/conservation fact, not a safety statement — buyers concerned about wild-caught sourcing may wish to confirm farmed/mariculture origin.

  Source: general Kidney-yang tonic/animal-tonic caution class (materia medica consensus); Memorial Sloan Kettering “About Herbs” (seafood-allergy caution); IUCN Red List assessment for Apostichopus japonicus (2013 assessment; A2bd, Endangered). Reference disclosures, not medical advice.

Chinese Herb Toxicity & Overdose

• Low toxicity as a cooked/prepared food or standard decoction. Hai Shen has a long history as a food with no significant toxicity reported at typical culinary or materia medica doses. Documented safety concerns instead relate to raw handling/processing and to concentrated, purified extracts rather than ordinary dietary or decoction use.

  • Occupational/raw-handling irritation — a case report describes three sea cucumber (Cucumaria frondosa) processing workers who developed acute skin, respiratory, and eye irritation after manual evisceration aerosolized the animal’s defensive holothurin saponins; this reflects raw industrial handling, not eating the prepared food.
  • Saponin (holothurin) hemolytic activity — laboratory studies show purified/concentrated sea-cucumber saponins (e.g., holothurin A, echinoside A) are membranolytic and hemolytic in vitro; this is a property of isolated, concentrated compounds under laboratory conditions, not a demonstrated risk of eating the whole prepared food.

  Source: PMID 33212098 (occupational holothurian exposure case report, Toxicon, 2021); PMID 29932674 (sea-cucumber saponin biological-activity review, hemolytic mechanism, J. Agric. Food Chem., 2018). Reference note, not a safety guarantee.

Herb-Drug Interactions

• No well-established clinical herb–drug interaction trials exist, but Hai Shen’s documented anticoagulant chemistry is a reasonable precaution for patients on blood-thinning medication. Sea cucumber (including Apostichopus japonicus, the species recorded for this herb) contains fucosylated chondroitin sulfate / glycosaminoglycan compounds shown in laboratory studies to have potent anticoagulant activity comparable in some fractions to low-molecular-weight heparin. Memorial Sloan Kettering’s clinical herb-drug reference likewise flags that sea-cucumber polysaccharides may potentiate anticoagulant or antiplatelet drugs, raising bleeding risk. (Preclinical/precautionary basis; flagged for practitioner awareness, not a demonstrated clinical interaction.)

  Source: PMID 25260572 (anticoagulant glycosaminoglycan from Apostichopus japonicus, Int. J. Biol. Macromol., 2015); Memorial Sloan Kettering “About Herbs” (sea cucumber, clinical interaction caution).

Western / Biomedical Research

Chinese Herb Clinical Studies & Research

Provided as research context — a summary of published biomedical study, not a therapeutic or medical claim.

• Is there modern research on Hai Shen (sea cucumber saponins and peptides)?

  Yes — a substantial body of preclinical (cell and animal) research on sea-cucumber saponins, peptides, and polysaccharides, but very little controlled human clinical evidence. Reviews covering Apostichopus (Stichopus) japonicus — the species recorded for this herb — catalogue four major bioactive-compound classes (saponins, proteins/peptides, polysaccharides, and other components) linked to roughly ten reported biological activities.

  • Saponins — triterpene glycosides (e.g., holothurins, echinosides) reported in preclinical studies to have antitumor, hypolipidemic, anti-nonalcoholic-fatty-liver, and antihyperuricemic activity, alongside membranolytic/hemolytic effects at concentrated doses (see toxicity).
  • Peptides and proteins — bioactive peptides from A. japonicus studied for antioxidant, antihypertensive, antibacterial, and immune-modulating activity in cell and animal models.
  • Polysaccharides / fucosylated chondroitin sulfate — the compound class most directly studied for anticoagulant/antithrombotic activity (see drug interactions), along with reported roles in hematopoiesis support and gut-microbiota regulation in animal studies.
  • Human clinical research — remains sparse; most cited activities come from cell-culture or animal studies. A registered human clinical trial of a proprietary sea-cucumber extract in asymptomatic myeloma (ClinicalTrials.gov NCT01302366) illustrates active clinical-research interest, but does not by itself establish efficacy for any traditional indication.

  Overall: strong and growing preclinical pharmacology, still awaiting robust human clinical trials. This is research context only, not a therapeutic claim for Hai Shen as used traditionally.

  Sources: PMID 37853667 (chemical substances and activities of Apostichopus japonicus, comprehensive review, Arch. Pharm., 2024); PMID 29932674 (sea-cucumber saponin biological activities review, J. Agric. Food Chem., 2018); PMID 25260572 (anticoagulant glycosaminoglycan from A. japonicus, Int. J. Biol. Macromol., 2015); ClinicalTrials.gov NCT01302366 (registered human trial, context only). Research context, not a therapeutic claim.

Chinese Herb Notes

• What makes Hai Shen different from other Kidney-yang tonics?

  Hai Shen is unusual among Kidney-yang tonics because it moistens and nourishes yin/blood rather than warming and drying — most yang tonics (e.g., Lu Rong, Rou Cong Rong, Ba Ji Tian) are prized mainly for warming and fortifying yang, and some can be drying with prolonged use. Hai Shen’s salty, rich, gelatinous, food-based nature instead supports both yang and the yin/blood side of Kidney deficiency at once, and it moistens the intestines rather than aggravating dryness or constipation.

  • As a food-tonic — it is eaten dried-and-reconstituted, most often simmered in soups, and is used as often in the kitchen as in a formula; this site’s own record currently has no recorded herb-pair combinations or formula memberships for Hai Shen, consistent with its identity as primarily a dietary/food-therapy substance rather than a standard decoction-formula herb.
  • Category placement — classified in this reference under Herbs that Tonify Yang, alongside the animal- and mineral-derived Kidney-yang tonics, though its moistening, blood/yin-nourishing side sets it apart from that group’s more warming, drying members.

  Source: comparative materia medica consensus (Kidney-yang tonic category); this site’s own record (category, combination/formula records checked and currently empty for this herb).