Basil (Ocimum basilicum) leaf extract is a plant-derived ingredient rich in polyphenols, flavonoids, and essential oil compounds such as eugenol and linalool, valued in skincare for its antioxidant, anti-inflammatory, and antimicrobial properties. It is used to help soothe skin and protect against oxidative stress.
| Reported effect | How often | Notes |
|---|---|---|
Contact dermatitis / skin irritation | Uncommon | Linked to essential oil constituents like eugenol; more likely with higher concentrations. |
Allergic contact sensitization | Rare | Fragrance components such as linalool and eugenol are known potential allergens. |
Photosensitivity | Very rare | Occasionally reported with botanical essential oils; limited evidence specific to basil. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.