CALCIUM HYDROXIDE
CALCIUM HYDROXIDE
Is CALCIUM HYDROXIDE safe in skincare?
EU CosIng Annex III
Based on
- Reference: European Union, 2026
Annex III · EU Cosmetics Regulation Annex III, entry 15c: permitted only under the listed conditions. Conditions: (a) Hair straighteners containing two components: calcium hydroxide and a guanidine salt (b) pH ajuster for depilatories (c) Other uses (e.g. pH adjuster, processing aid) | (a) 7% (as calcium hydroxide) | (b) pH < 12.7 (c) pH < 11 | (a) Contains alkali Avoid contact with eyes Keep out of reach of ch
- Reference: Cosmetic Ingredient Review Expert Panel
Safe as used · CIR report 703 conclusion
- Reference: Korea MFDS
MFDS Korea: restricted · MFDS Korea cosmetic restricted
Is CALCIUM HYDROXIDE classified as a carcinogen?
Only four bodies count here: IARC, EU CLP, US NTP and California Prop 65.
Not classified by IARC, EU CLP, US NTP, or California Prop 65.
How is CALCIUM HYDROXIDE regulated?
Cosmetic ingredient
Not found on any prescription-drug, professional-treatment, or US OTC monograph list, so it is treated as a cosmetic ingredient. This is a passive default ("not on any known restricted list"), not an individually verified positive finding.
Products that list this ingredient
5 products in our catalog list this ingredient.
- NAIRNAIR Body Cream Hair Remover With Nourishing Oat Milk And Vanilla
- NAIRNAIR Body Hair Remover Cream With Rich Cocoa Butter And Vitamin E For Body, Dermatologist Tested
- NAIRNAIR Glide On Hair Removal Cream For Body
- NAIRNAIR Hair Remover Face Cream, Moisturizing Formula, Dermatologist Tested
- NAIRNair Prep&Smooth Soothing with Coconut Milk&Collagen Face Hair Remover for Women, Sensitive Formula, for Upper Lip, Chin and Cheek
Sources (3)
- Reference: European Union, 2026
- Reference: Cosmetic Ingredient Review Expert Panel
- Reference: Korea MFDS
Red does not mean poison. Preservatives that stop a product going off, UV filters and fragrance can land on yellow or red depending on their score.
Green does not mean right for you. Skin and allergies differ from person to person. Treat the color as a starting point.