Milk thistle

Coming later

Silybum marianum seed extracts standardised to silymarin. Not in the directory yet.

Milk thistle extract is made from the seed (botanically the fruit) of Silybum marianum. Silymarin is a mixture of flavonolignans, and silibinin (silybin) is its largest part. China is one of several countries that grow and process milk thistle seed.

Silymarin results depend on the method. A UV result usually reads higher than an HPLC result on the same lot, so the two are not interchangeable.

No supplier review has been published.

Specifications

Botanical source: Silybum marianum (L.) Gaertn. is the expected species. It is not confirmed for any offering here.
Plant part: Seed. Not reviewed against a specification.
Common grades and distinctions: Silymarin by UV versus by HPLC.; Standard extract versus a silibinin-enriched or phospholipid-complexed grade.

Listing status

This ingredient is not in the directory yet. Sample and quote requests are not open for it.

Buying considerations for US supplement brands

Ask which method produced the silymarin percentage before comparing quotes.

Coming soon.

Sources and method

Evidence reviewed 2026-11-15. Methodology 2026-11-14.1.

No source has been filed on this page yet. That is an incomplete research state.