Sodium Hydroxide
Sodium Hydroxide is a buffering and denaturant ingredient. It’s in 2,058 products on Poliage, most often body lotion, moisturizer and body wash. Avoid lists on Poliage that include it: none.
Updated October 21, 2026
In plain English
Lye. Used in small amounts to adjust pH, or to turn fats into soap.
What it does
Contains Sodium Hydroxide: buffering
Function listed in CosIng
Contains Sodium Hydroxide: denaturant
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 37890, accessed October 22, 2026. Also listed as natrii hydroxidum.
Products that contain Sodium Hydroxide
Yves Rocher
Crème mains Cacao & Orange
Lists fragrance, fragrance allergens, silicones
Yves Rocher
Crème mains Clémentine & Epices édition limitée
Lists fragrance, fragrance allergens, silicones, coconut derivatives
Roger & Gallet
Crème mains et ongles Rose
Lists fragrance, fragrance allergens
Cosmia
Crème mains hydratante
Lists fragrance, fragrance allergens
Cosmia
Crème mains nourrissante
Lists fragrance, sulfates
CeraVe
Crème Mains Réparatrice
Lists silicones
Cosmia
Crème mains SOS mains abîmées
Lists fragrance
La Roche-Posay
Creme para Olheiras La Roche-Posay Pigmentclar Olhos
Lists silicones
Cosmia
Crème pieds
Lists fragrance
Cosmia
Crème pieds anti-dessèchement
Lists fragrance, exfoliating acid, salicylic acid
Auchan
Crème pour les mains
Lists fragrance, fragrance allergens
Nivea sun
Crème Protection Solaire Lait FPS 50+ Sensitive
Lists drying alcohol, chemical UV filters
Nivea sun
Crème Protection Solaire Spray FPS 50+ Sensitive
Lists drying alcohol, chemical UV filters
Balea
Creme Seife Ginger & Lemon
Lists fragrance, exfoliating acid, sulfates, coconut derivatives
Balea
Creme Seife Sensitive
Lists fragrance, exfoliating acid, sulfates, coconut derivatives
Yves Rocher
Crème solaire 50+ FPS SPF
Lists fragrance, chemical UV filters
Cien
Crème solaire Enfant FPS 50+
Lists drying alcohol, silicones, chemical UV filters
Nivea sun
Crème Visage Solaire Anti-Rides UV Q10 FPS 50
Lists fragrance, fragrance allergens, drying alcohol, chemical UV filters, coconut derivatives
Alverde
Cremegel Hydro
Lists fragrance, drying alcohol, coconut derivatives
Balea
Cremeseife Sensitive (mit Aloe Vera)
Lists fragrance, exfoliating acid, sulfates, coconut derivatives
Crest pro health whitening
Lists fragrance, sulfates
Crest Pro-Health Enamel Repair and Gum Toothpaste
Lists fragrance, sulfates
Crest Toothpaste
Lists fragrance, sulfates
Crest
Crest+scope complete
Lists fragrance, drying alcohol, sulfates
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