Sodium Hydroxide
Sodium Hydroxide is a buffering and denaturant ingredient. It’s in 2,157 products on Poliage, most often body lotion, moisturizer and body wash. Avoid lists on Poliage that include it: none.
Updated October 26, 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
Garnier
Shampooing doux Ultra Doux
300 ml · Label from France · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Auchan
Shampooing extra-doux Camomille & Mimosa
300 ml · Label from France · Lists fragrance, fragrance allergens, essential oils, sulfates, coconut derivatives
L’Oréal
Shampooing fortifiant 2 en 1
250 ml · Label from France · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, sulfates, silicones, salicylic acid, coconut derivatives
L’Oréal
Shampooing fortifiant Stop Agressions
250 ml · Label from France · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
L’Oréal
Shampooing purifiant sans silicone à l’argile douce et cédrat
250 mL · Label from France · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, salicylic acid
Yves Rocher
Shampooing Soin Nutri-Réparateur
300 ml · Label from France · Lists fragrance, exfoliating acid, sulfates, salicylic acid, coconut derivatives
L’Oréal
Shampooing soleil à l’huile de Monoï et Néroli
250 ml · Label from France · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, sulfates, silicones, salicylic acid, coconut derivatives
Auchan
Shampooing très doux
250 ml · Label from France · Lists fragrance, sulfates, coconut derivatives
Brickell Men’s Products
Shaping Paste Pomade for Men
Hair styling · 2 oz · Lists drying alcohol
Softsoap
Shea & Almond Oil
591ml · Label from Canada · Lists fragrance, sulfates, salicylic acid, coconut derivatives
The Body Shop
Shea Body Lotion
Body lotion · 200ml · Lists fragrance, fragrance allergens, silicones
Nivea
Shea Butter
Body wash · 20 mL · Lists fragrance, sulfates, salicylic acid, coconut derivatives
Jergens
Shea Butter
Label from Canada · Ingredients incomplete, can’t check
Cantu
Shea Butter 3 in 1 Shampoo Conditioner Body Wash
400 ml · Label from Germany · Ingredients incomplete, can’t check
Dial
Shea Butter Extract Body Wash
Body wash · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Shea Butter Melt & Pour Soap Base
Lists coconut derivatives
Fekkai
Shea Butter Shampoo
Shampoo · 8.5 oz · Lists fragrance, fragrance allergens, exfoliating acid, salicylic acid, coconut derivatives
The Body Shop
Shea Intense Repair Conditioner
Conditioner · 250ml · Lists fragrance, fragrance allergens, coconut derivatives
The Body Shop
Shea Intense Repair Hair Mask
Hair styling · 240ml · Lists fragrance, fragrance allergens, coconut derivatives
Nivea
Shea Nourish Body Lotion
Body lotion · 16.9 fl oz · Lists fragrance, silicones
L’Oréal
Shea Nourishing Body Butter
Moisturizer · 192g · Lists fragrance, fragrance allergens, parabens, silicones
The Body Shop
Shea Shower Cream
Body wash · 250ml · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
John Frieda
Sheer Blonde Everlasting Blonde Shampooing prolongateur de couleur
250 ml · Label from France · Ingredients incomplete, can’t check
Cetaphil
Sheer Mineral Sunscreen Face Drops SPF 50
Sunscreen · Lists silicones
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