EU cosmetic limits

Potassium hydroxide in EU cosmetics: Annex III, entry 15d

Source: Regulation (EC) No 1223/2009, consolidated textRetrieved 2026-11-05Independent information site: we are not the authority and not the source of the data.

Potassium hydroxide: maximum concentration in ready for use preparation by product type: Callosity softener/remover: 1,5 % (4). Annex III, entry 15d, Regulation (EC) No 1223/2009, consolidated 18 May 2026.

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Annex
III: List of substances which cosmetic products must not contain except subject to the restrictions laid down
Reference number
15d
Chemical name/INN
Potassium hydroxide (21)
Name of Common Ingredients Glossary
Potassium hydroxide
CAS number
1310-58-3
EC number
215-181-3
Version
Consolidated version of 18 May 2026
Official source
Regulation (EC) No 1223/2009, consolidated text

Official wording: restrictions

Official wording: conditions of use and warnings

Contains alkali

Avoid contact with eyes

Keep out of reach of children

Read directions for use carefully

Notes referred to in this entry

Same CAS number in other entries of the annexes

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