Quercus Mongolica Leaf Extract
An oak leaf extract with tannins. It tones and supports the skin's antioxidant defense. Well tolerated.
Evidence by route
Topical application
A toning plant extract. 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
Mongolian oak leaf extract (INCI Quercus Mongolica Leaf Extract) comes from the leaves of Quercus mongolica and supplies tannins and other polyphenols. In cosmetics it is included for a toning, mildly astringent effect and to support the skin's antioxidant defense. On efficacy, tannins and polyphenols have measurable antioxidant activity in the lab, but clinical facial studies of this specific extract are limited. The reasonable view is to treat it as a supporting component within soothing and antioxidant formulas rather than an active with broadly proven results. Topically it has no systemic relevance, so it can be used during pregnancy and breastfeeding. Tolerance is good: low irritation and low allergy risk, suitable for sensitive skin. An individual reaction is possible but uncommon.
Frequently asked questions
Is Quercus Mongolica Leaf Extract safe during pregnancy?
Quercus Mongolica Leaf Extract is considered safe during pregnancy at typical cosmetic concentrations. Systemic absorption through the skin is minimal.
What skin types is Quercus Mongolica Leaf Extract for?
Quercus Mongolica Leaf Extract suits: normal, dry, combination, oily, sensitive.
What is Quercus Mongolica Leaf Extract and what does it do in cosmetics?
An oak leaf extract with tannins.
What's the INCI name for Quercus Mongolica Leaf Extract?
The INCI name is Quercus Mongolica Leaf Extract. It may also appear as: Mongolian Oak Leaf Extract.
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