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INCI ingredient

Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate

Also listed as: Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate. (, Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate (

A synthetic antioxidant that protects oils and colours from fading.

What it triggers

  • Vegan originYesno animal source
  • FragranceNonot a perfume ingredient
  • ParabenNonot a preservative of this family
  • SulfateNonot a sulfate surfactant
  • SiliconeNonot a silicone
  • AlcoholNonot a drying alcohol

What it does

This long-named ingredient is a large antioxidant molecule that does not evaporate or migrate, so it keeps protecting oils, fragrance and dyes for the life of a product. It appears in tiny amounts in creams, sunscreens and lip products. CosIng lists it as an antioxidant.

It is synthetic and affects none of the six checks.

Functions: antioxidant

Products with Pentaerythrityl Tetra-di-t-butyl Hydroxyhydrocinnamate

in 316 products

Showing 24 of 316 products with this ingredient, most scanned first.

In the EU ingredient database

Functions listed by CosIng
  • antioxidant
  • antioxidant: Inhibiting reactions promoted by oxygen, thus avoiding oxidation and rancidity.

CAS 6683-19-8 · EC 229-722-6

EU regulation

Not on a restricted-substances annex. Listed as an allowed cosmetic ingredient.

Source: CosIng, European Commission. Informative, no legal value; the regulation text is the reference.

Classification from the INCI name; product lists from Open Beauty Facts.Report a mistake