Rosmarinus officinalis (rosemary) extract is a plant-derived ingredient rich in polyphenols such as rosmarinic and carnosic acid, used in skincare for its antioxidant and antimicrobial properties. It is commonly included to help protect formulations and skin from oxidative stress.
| Reported effect | How often | Notes |
|---|---|---|
Allergic contact dermatitis | Uncommon | Sensitization can occur in individuals allergic to Lamiaceae (mint family) plants. |
Skin irritation or redness | Uncommon | More likely with high concentrations or in sensitive skin. |
Photosensitivity | Rare | Reported infrequently, mainly associated with essential oil forms. |
Contact urticaria | Very rare | Isolated case reports of immediate hypersensitivity reactions. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.