Tannic Acid
A plant polyphenol antioxidant. It slightly tightens pores and helps protect skin from free radicals. Well tolerated.
Evidence by route
Topical application
An antioxidant active. Safe.
- CIR Cosmetic Ingredient Review safety assessment
How to read tiers A–F
- BLimited evidence. One RCT or several controlled studies with limitations
Tolerability and safety
- Irritation potential
- Low
- Allergen risk
- Low
- Pregnancy
- Safe
- Suitable for
- Normal, Dry, Combination, Oily, Sensitive
About this ingredient
Tannic Acid is a plant polyphenol found in bark, galls and some fruits. In toners, masks and serums it acts as an antioxidant and has an astringent effect that gives a tighter-pore feel by lightly contracting tissue. Its backing as a topical antioxidant is reasonable, though modest next to more studied actives. The astringent effect is real but temporary: it tightens the surface rather than permanently shrinking the physical pore. A solid supporting component in the protection part of a formula. For topical use it has no systemic relevance, so it can be used during pregnancy and breastfeeding. Tolerance is good, with low irritation and allergy potential. At high concentrations the astringent effect can feel somewhat tight on very dry skin.
Frequently asked questions
Is Tannic Acid safe during pregnancy?
Tannic Acid is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Tannic Acid for?
Tannic Acid suits: normal, dry, combination, oily, sensitive.
What is Tannic Acid and what does it do in cosmetics?
A plant polyphenol antioxidant.
What's the INCI name for Tannic Acid?
The INCI name is Tannic Acid.
See Tannic Acid in a product composition right on the store page
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