Thymus Serpyllum (wild thyme) Extract is a plant-derived ingredient rich in phenolic compounds and essential oil constituents such as thymol and carvacrol, used in skincare for its antioxidant, antimicrobial, and soothing properties. It is often included to support skin conditioning and as a natural preservative-boosting agent.
| Reported effect | How often | Notes |
|---|---|---|
| Contact irritation | Uncommon | Mild redness or stinging possible, especially at higher concentrations or on sensitive skin. |
| Allergic contact dermatitis | Rare | Sensitization linked to thymol/carvacrol and related volatile compounds. |
| Photosensitivity | Very rare | Occasionally reported with botanical/essential-oil-containing extracts. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.