Ingredient
Diethylhexyl Syringylidenemalonate
What it is
A synthetic antioxidant and photostabilizing ester, derived from syringaldehyde, used in modern sunscreen and skincare formulations to help protect light-sensitive UV filters and other actives from degradation.
How it works
It absorbs and dissipates UV-generated energy, which helps stabilize photolabile sunscreen filters (such as avobenzone) against breakdown and reduces free-radical formation from UV exposure, while itself contributing antioxidant activity to a formula.
What it does
Antioxidant
Concerns to know
-
Well tolerated
No significant safety concern is reported for this ingredient as used in cosmetics.