Silybum Marianum (Milk Thistle) Extract

Silybum Marianum (Milk Thistle) Extract comes from milk thistle seeds or aerial parts. It's used for its polyphenol content, supporting antioxidant capacity, a calming profile, and general product stability.
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Ingredient Snapshot

Overview
A milk thistle extract with antioxidant and calming properties.
Category
Antioxidant, Soothing
Type
Botanical Extract

Ingredient Ratings

Overall Rating

Good

Comedogenic Risk

None

Skin Benefits

It offers antioxidant support that helps defend against environmental stressors, and may comfort the look of reactive skin, though cosmetic evidence for this is limited.

Uses In Skincare & Cosmetics

It's found in soothing toners, recovery serums, and moisturizers aimed at stressed skin, and in after-sun gels and gentle creams that round out calming routines.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

It's generally low risk, but botanicals can trigger sensitivity, and those allergic to Asteraceae plants may be more prone to reactions. There are no widely established cosmetic regulatory restrictions.

Is Silybum Marianum (Milk Thistle) Extract a Good Ingredient?

This rates Good because its polyphenols offer real antioxidant and soothing potential, but in-cosmetic evidence remains limited and outcomes vary by extract quality, which keeps it from a higher score.