Drometrizole Trisiloxane (Mexoryl XL) is a broad-spectrum, photostable organic UV filter that absorbs both UVA and UVB radiation, used in sunscreens to provide photoprotection. Its silicone-based structure gives it oil solubility and substantivity on skin.
| Reported effect | How often | Notes |
|---|---|---|
Contact irritation | Rare | Mild stinging or transient redness possible, especially on sensitive or compromised skin. |
Allergic contact dermatitis | Rare | Occasional sensitization reported in patch-test studies, but considered a low-allergenicity filter. |
Photoallergic reaction | Very rare | Isolated case reports of photosensitivity; uncommon relative to older UV filters. |
Eye irritation | Uncommon | Can cause stinging if product migrates into the eyes. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.