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Silybum Marianum Extract

What Silybum Marianum Extract is & what it does

Silybum Marianum Extract comes from milk thistle, a plant whose seeds are a known source of the antioxidant complex silymarin. In skincare it is used as a botanical extract valued for its antioxidant content, which can help support the skin against everyday oxidative stress. It is often included in formulas centered on protective or soothing botanical claims.

What does Silybum Marianum Extract do in skincare?

Silybum Marianum Extract, from milk thistle, is used as an antioxidant-rich botanical. The plant is a known source of silymarin, a compound complex that can help support the skin against everyday oxidative stress. It often appears in formulas with protective or soothing botanical claims.

Is Silybum Marianum Extract safe?

Silybum Marianum Extract comes from milk thistle, a plant used in both supplements and cosmetics, and is generally considered well tolerated in skincare amounts. As with any botanical, those with related plant allergies may want to patch test first. It is used mainly as an antioxidant-oriented conditioning extract.

Is Silybum Marianum Extract natural or synthetic?

Silybum Marianum Extract is natural, derived from the milk thistle plant. It is a botanical extract rather than a synthetic compound, though it is processed and standardized for use in cosmetic formulas.

Sunscreens with Silybum Marianum Extract

We rate 16 sunscreens that contain it, showing the top 10 by overall score:

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