Sodium hydroxide
Sodium hydroxide
Sodium Hydroxide (INCI: Sodium Hydroxide) is a chemical base obtained through synthesis. It is used as a pH adjuster in cosmetic formulations.
PerfumingBufferingRestricted use
Ingredient
Roles & functions
Perfuming — Adds a scent to the product or masks the odour of raw materials.
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 |
| CLP classification (Reg. 1272/2008) | No CMR classification |
| ECHA — endocrine disruptor (human health) | Not identified as an endocrine disruptor |
| 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) 5% (b) 2% (General use) and 4.5% (Professional use) Entry 15d: 1,5% in (a) Nail cuticle solvent (b) Hair straightener (c) pH adjuster for depilatories (d) Other uses as pH adjuster Callosity softener/remover (entry 15d) — (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 — (b) 1. General use 2. Professional use (c) up to pH 12.7 (d) up to pH 11 15 d Contains alcakali, Avoid contact with eyes Keep out of reach of chindren ans Read directions for use carefully |
Products
Products containing it
MelvitaL'Or Végétal Savon Exfoliant Lissant Corps Bio, 125ml
EneomeyPerfect Body 30 Lait Corporel Raffermissant, 150ml
DermaceuticPurifier Foamer 15 Mousse Exfoliante Intense, 100ml
EneomeyStim Renew 30 Recharge Crème de Nuit Anti-Age Lissante, 50ml
EneomeyStim Renew 30 Soin Nuit Anti-Âge Raffermissant, 50ml
AveneCold Cream Pain Surgras, 2X100G
GranionsDermatologie Sérum Acide Glycolique, 30ml
RocKeops, Duo Stick, 2 X 40ml
DucrayKeracnyl Lotion Purifiante, 200ml
HoraceSolution Exfoliante Perfectrice, 150ml
NovexpertTrio-Zinc Soin Peeling Peau Nette Peaux normales à grasses, 30ml
AveneCleanance Sérum Exfoliant A.H.A, 30ml
Statistics
In Lou’s database
974
products listed
| Most frequent categories | Hydration · Shower gels & soaps · Anti-aging · Serums · Cleansers & makeup removers |
| Most frequent brands | Cavaillès · Bioderma · Uriage · SVR · Caudalie |
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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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