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Milk thistle

CAS 84604-20-6

Concern score

Not assessed — no hazard data yet.

Milk thistle in plain language

What it is

Also known as Silybum marianum fruit extract · Silybum marianum seed · Silybum marianum dry fruit extract · Silybum marianum extract · Silybum marianum seed extract · Milk thistle silymarin

Show all 26 names

Milkthistle fruit (silybum marianum l. gaertner) · Silybi fructus · Silybi mariani fructus (silybum marianum l. gaertner) · Silybum marianum dry fruit · Silybum marianum fruit · Milk thistle extract · Milk thistle seed extract · Saint mary's thistle extract · Cardui mariae fructus · Fruit of silybum marianum · Holy thistle seed · Lady's thistle seed · Mariana mariana seed · Mary's thistle seed · Milk thistle fruit · Milk thistle seed · Shuifeiji · Carduus marianus preparation · Carduus marianus · Carduus marianus seed

What it does

We don't have a plain-language description for Milk thistle yet.

Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Milk thistle appears in these published regulatory listings.

  • In marketed US drugs
  • USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 17 active drug products and 25 total products.
    • FDA NDC lists this ingredient in 17 active drug products and 25 total products.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as concept.
    • openFDA substance registry classifies this ingredient as concept.Source →

Evidence & sources

No graded research studies for Milk thistle yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

3 data sources

Where this comes from

  • FDA National Drug Code Directory

    regulatory · updated 2028-08-21

    Open →
  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →
  • openFDA Substance

    registry · updated 2026-05-24

    Open →

Allergen profile

Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.

  • DairyContains · Oral (ingested)

    Source: chemindex_name_match

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often FDA National Drug Code directory has listed Milk thistle in a product composition. These are source records, not Greenveil catalog products.

Source records

25

See products using Milk thistle →

Catalog

Found in these products

Their ingredient lists include Milk thistle; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

Co-occurrence

Often appears with

Ingredients that frequently appear alongside Milk thistle in the catalog.