Antioxidant ingredient

Diethylhexyl Syringylidenemalonate

An antioxidant ingredient (trade name Oxynex ST Liquid) used in sunscreens and skincare to boost the photostability of UV filters and other antioxidants. Not itself a UV filter — it works by capturing free radicals generated by UV exposure, protecting both the formula and skin. Used in Supergoop! Unseen Sunscreen.

Also known as: Oxynex ST Liquid

antioxidantuv-stabilizer

Benefits

  • Potent antioxidant that also stabilizes other UV filters against photodegradation, enhancing the photostability of sunscreen formulas
  • Protects tocopherol and other antioxidants in formulas by quenching reactive radicals before they degrade the formula

No known watch-fors.

Compatibility

✓ Works well with
+ Avobenzone+ Tocopherol+ Ascorbic Acid
At a glance
CategoryAntioxidant
IrritancyLow
Beginner-friendlyYes
Pregnancy safeYes
In your routine

Pairs well with Avobenzone and Tocopherol and others.

Found in 1 product
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Products with Diethylhexyl Syringylidenemalonate

Unseen Sunscreen SPF 40Sunscreen
Supergoop!
Unseen Sunscreen SPF 40