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INCI ingredient

Sodium Hydroxide

Also listed as: Sodi̇um Hydroxide, šodium Hydroxide

Lye, used in tiny amounts to neutralise acids and set the pH.

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

Sodium hydroxide is strongly alkaline on its own, but in a finished product it has already reacted with an acid and only the neutral result remains. It is listed because the rules require every ingredient added to the batch.

It does not affect any of the six checks.

Functions: pH adjuster

Products with Sodium Hydroxide

in 2,931 products

Showing 24 of 2,931 products with this ingredient, most scanned first.

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