Green tea extract is rich in polyphenols, particularly EGCG (epigallocatechin gallate), which provide antioxidant and anti-inflammatory effects in topical skincare. It is used to help neutralize free radicals, calm irritation, and may offer modest photoprotective and sebum-regulating benefits.
| Reported effect | How often | Notes |
|---|---|---|
| Mild skin irritation or redness | Uncommon | Usually transient, more likely at higher concentrations or on sensitive skin. |
| Allergic contact dermatitis | Rare | Sensitization to polyphenols or other extract components has been reported in isolated cases. |
| Dryness or stinging | Rare | May occur with certain formulations, particularly alcohol-based ones. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.