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
Deliplus
crema solar facial
Lists fragrance, exfoliating acid, silicones, chemical UV filters, coconut derivatives
dm
Crema solare 50+ spray
Lists chemical UV filters
Desert Essence
Crème capillaire boucles souples à la noix de coco
Lists fragrance, fragrance allergens
Cosmia
Créme corps hydratante
Lists fragrance, drying alcohol
Cosmia
Crème corps réparatrice
Lists fragrance, fragrance allergens, essential oils
Auchan
Crème de douche Dermo Protect soin hydratant
Lists fragrance, sulfates, coconut derivatives
Auchan
Crème de douche Dermo Protect surgras
Lists fragrance, sulfates, coconut derivatives
Cosmia
Creme de douche soin
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Cien
Crème de jour anti-rides Q10
Lists fragrance, fragrance allergens, drying alcohol, parabens, silicones, chemical UV filters
Cosmia
Crème dépilatoire à l’aloe vera
Lists fragrance, fragrance allergens
Cosmia
Crème dépilatoire au beurre de karité
Lists fragrance, fragrance allergens
Cosmia
Crème dépilatoire corps à l’aloe vera
Lists fragrance
Cosmia
Crème dépilatoire corps au beurre de karité
Lists fragrance
Nivea
Creme Facial Nivea Q10 Energy Antissinais para os Olhos
None of Poliage’s flag groups listed
Cosmia
Crème hydratante sensitive
Lists fragrance, chemical UV filters
Cien
Crème lavante au parfum d’amande
Lists fragrance, sulfates, coconut derivatives
Cosmia
Crème lavante mains
Lists fragrance, sulfates, coconut derivatives
L’Oréal
Crème lavante protectrice bain & douche
Lists fragrance, sulfates
Yves Rocher
Creme main sensuelle vanille
Lists fragrance, fragrance allergens, silicones, coconut derivatives
Cien
Crème main Verveine et citron
Lists fragrance, fragrance allergens
Cien
crème mains à la camomille
Lists fragrance, fragrance allergens, sulfates
Auchan
Crème mains anti-âge
Lists fragrance, silicones
Cosmia
Crème mains anti-dessèchement
Lists fragrance, silicones
Nivea
Crème Mains Apaisante
Lists fragrance, fragrance allergens, drying alcohol, silicones
Related guides
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