Rosmarinus Officinalis (rosemary) Extract is a plant-derived ingredient rich in phenolic compounds such as carnosic acid and rosmarinic acid, valued for its antioxidant and antimicrobial properties. In cosmetics it is used to help protect formulations from oxidation and may provide soothing or skin-conditioning benefits.
| Reported effect | How often | Notes |
|---|---|---|
| Allergic contact dermatitis | Uncommon | Sensitization can occur, particularly in individuals with allergy to Lamiaceae (mint family) plants. |
| Skin irritation or redness | Uncommon | More likely with high concentrations or in sensitive skin. |
| Photosensitivity | Rare | Reported infrequently; relevant mainly when essential oil components are present. |
| 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.