Psidium Guajava (Guava) Leaf Extract is a plant-derived ingredient rich in polyphenols, flavonoids (such as quercetin), and tannins, valued in skincare for its antioxidant, anti-inflammatory, and sebum-regulating properties. It is often included in formulations targeting oily, acne-prone, or stressed skin.
| Reported effect | How often | Notes |
|---|---|---|
Contact irritation (redness, stinging) | Uncommon | More likely at higher concentrations or on sensitive skin. |
Allergic contact dermatitis | Rare | Possible sensitization to plant polyphenols or other botanical constituents. |
Dryness or tightness | Rare | Tannin content may have a mild astringent effect. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.