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INCI ingredient

Sodium Hy - Droxide

Also listed as: Sodium Hydroxide

Sodium Hy - Droxide appears on 2 ingredient lists in our database, most often in sunscreens.

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 Hy - Droxide appears on 2 ingredient lists in our database, most often in sunscreens.

It does not belong to any of the six groups we check, so it never changes a verdict.

We have not written the plain-language note for this ingredient yet; the facts above come straight from how it is classified.

Functions: buffering, denaturant

Products with Sodium Hy - Droxide

in 2 products

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

In the EU ingredient database

Functions listed by CosIng
  • buffering
  • denaturant
  • buffering: Stabilising the pH of an aqueous medium in a narrow range even if an acid or base is added. Altering and/or maintaining a cosmetic product's pH at the desired level.
  • denaturant: Rendering cosmetics unpalatable. Mostly added to cosmetics containing ethyl alcohol to make it unsuitable for ingestion.

CAS 1310-73-2 · EC 215-185-5

EU regulation

Listed in Annex III (ref. 15a) of the EU Cosmetics Regulation, maximum concentration (a) 5% (b) 2% (General use) and 4.5% (Professional use) Entry 15d: 1,5%. (a) Nail cuticle solvent (b) Hair straightener (c) pH adjuster for depilatories (d) Other uses as pH adjuster Callosity softener/remover (entry 15d) III/15a (a) Contains alkali Avoid contact with eyes Can cause blindness Keep out of reach of children (b) 1. Contains alkali Avoid contact with eyes Can cause blindness Keep out of reach of children 2. For professional use only Avoid contact with eyes Can cause blindness (c) Keep out of reach of children Avoid contact with eyes

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