Lithium hydroxide
Lithium hydroxide
Lithium hydroxide is a chemical compound obtained by synthesis. It acts as a pH adjuster in cosmetic formulations.
BufferingRestricted useEndocrine disruptor (suspected)
Ingredient
Roles & functions
Buffering — Adjusts and stabilises the pH of the formula.
Regulatory framework
What the authorities say
| Authority | Status |
|---|---|
| Commission européenne (CosIng, Règl. 1223/2009) | Autorisé sous conditions |
| Endocrine Disruptor Lists (autorités UE, edlists.org) — maj Fri, 07 Aug 2026 16:37:31 GMT | Perturbateur endocrinien — suspecté |
| CLP classification (Reg. 1272/2008) | No CMR classification |
| ECHA — Candidate List (SVHC, REACH Art. 59) | Not on the Candidate List (SVHC) |
| European Commission (Reg. 1223/2009, Annex III) | No cosmetic allergen subject to mandatory labelling |
| European Commission (EU catalogue of nanomaterials, Reg. 1223/2009) | No referenced nanoform |
| European Commission — Annex III (Reg. 1223/2009) — maj Fri, 07 Aug 2026 16:37:23 GMT | Permitted subject to restrictions (Annex III) — max (a) 1. 2% (6) 2. 4.5% (6) in (a) Hair straightener (b) pH ajuster for depilatories (c) Other uses as pH ajuster (for rinse-off products only) — (a) 1. Contains alkali Avoid contact with eyes Can cause blindness Keep out of reach of children 2. Avoid contact with eyes Can cause blindness (b) Contains alkali Keep out of reach of children Avoid contact with eyes — (a) 1. General use 2. Professional use (b) pH < 12.7 (c) pH < 11 |
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This information is reported factually and with attribution (authorities and publications cited). It does not constitute medical advice, for your situation, ask a pharmacist or a healthcare professional for advice.
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