Diethylhexyl Syringylidenemalonate is a synthetic antioxidant derived from sinapic acid, used in cosmetics primarily to protect formulations and skin from oxidative stress and to stabilize other ingredients such as UV filters. It is valued for scavenging free radicals and enhancing photostability.
| Reported effect | How often | Notes |
|---|---|---|
Skin irritation | Rare | Mild redness or stinging occasionally reported, generally in sensitive individuals. |
Allergic contact dermatitis | Very rare | Isolated sensitization reactions; the ingredient is generally considered low-allergenicity. |
Eye irritation | Rare | Possible if product migrates into the eyes. |
Frequencies reflect typical cosmetic use reported in the literature, not a guarantee for your skin.