Milk Thistle Seed Glycerin Extract is a glycerin extract of Silybum marianum seed built on glycerin derived from RSPO-certified palm oil, a water-compatible humectant carrier for cosmetic formulators. Manufactured at Bio-Botanica's FDA-inspected cGMP facility via the Bio-Chelated cold-extraction process, it is full-spectrum and non-standardized, aimed at glycerin-preferring personal-care systems.
*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.

Request Documentation
Tell us which documents you need and we'll email them to you.
Documents are sent by our technical team, typically within one business day.
Tell us about your project and we'll send the sample plus documentation. Pricing is available by requesting a formal quote — our team quotes to your volume and specs.
What you'll get
✓ Free sample shipping in the continental U.S.
✓ In-stock samples ship in 1–2 business days
✓ Every sample includes a Spec Sheet, COA, and SDS
See our full sample process →Milk Thistle Seed Glycerin Extract is a cosmetic glycerin extract made from Silybum marianum seed in a glycerin carrier, where the glycerin is derived from RSPO-certified palm oil and functions as a water-compatible humectant. Offered full-spectrum and non-standardized, this cosmetic-grade glycerin extract gives formulators an alcohol-free, glycol-free carrier choice for topical work.
Growth in the milk thistle extracts category, estimated by Cognitive Market Research at close to a 6.00% CAGR from 2023 to 2030, is spilling into personal care as brands look for recognizable, water-compatible humectant carriers. Glycerin-based botanical actives appeal to formulators developing free-from and glycol-conscious skincare positioning.
This glycerin extract folds into hydrating serums, toners, essences, cream masks, and leave-on moisturizers where a glycerin humectant carrier is preferred over glycol or oil. It works in water-phase and emulsion systems alike. Brands can frame it as a botanical seed active for glycerin-forward, alcohol-free cosmetic collections.
Bio-Botanica, family-owned in Hauppauge, New York since 1972, prepares this glycerin extract through its proprietary Bio-Chelated low-heat extraction to hold a Holistically Balanced seed profile. The onsite quality lab performs identity, microbial, USP, and heavy-metal testing using tools such as LC/MS and ICP/MS, and Kosher, Halal, and Organic certification is available for qualifying programs.
It is a botanical extract carried in glycerin; here Silybum marianum seed is extracted into a glycerin base for topical use.
The glycerin is derived from RSPO-certified palm oil and acts as a water-compatible humectant carrier.
Yes, it uses a glycerin carrier rather than ethanol, making it an alcohol-free option for cosmetic formulas.
This SKU uses a glycerin carrier, while the BG liquid extract uses a butylene glycol carrier for water-phase blending.
It is made from Silybum marianum seed, suited to topical personal-care formulation.
No, this glycerin extract ships full-spectrum and stays non-standardized.
It works in hydrating serums, toners, cream masks, and leave-on moisturizers.
Yes, this cosmetic-grade glycerin extract is intended for personal-care applications, not ingestion.
Samples include a Spec Sheet/TDS, a representative COA, and an SDS.
We can arrange Kosher, Halal, and Organic certification when a program qualifies.
Pricing is quoted to each buyer's volume and specifications and is not posted online.
Every lot undergoes onsite identity, microbial, USP, and heavy-metal testing, backed by third-party labs.