Cosmetic Products Regulation, Annex III - Restricted Substances

EU. Restricted Substances: Annex III, Regulation 1223/2009/EC on Cosmetic Products, as amended by Regulation (EU) 2024/996, OJ L of 4 April 2024

This list contains substances whose use in cosmetic products in the European Union is banned, except under certain conditions as indicated in Annex III. The list specifies the field of application or use, maximum allowable concentration limits in finished products, and any additional limitations.

Calcium hydroxide

EC / List no: 215-137-3 CAS no: 1305-62-0
Ref No.
Restrictions Product type, body parts
Hair straightening products
Maximum Threshold
7 %
Expressed As
As calcium hydroxide
Warning Label
Contains alkali. Avoid contact with eyes. Can cause blindness. Keep out of reach of children.
Hair straighteners containing two components: calcium hydroxide and a guanidine salt