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
head & shoulders
Anti-dandruff shampoo repair & care
Lists fragrance, fragrance allergens, sulfates, silicones, salicylic acid, coconut derivatives
Deliplus
anti-manchas
Lists fragrance
head & shoulders
Anti-roos shampoo + conditioner
Lists fragrance, fragrance allergens, sulfates, silicones, salicylic acid, coconut derivatives
Balea
Anti-Schuppen Shampoo Wasserminze & Bambus
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, sulfates, salicylic acid, coconut derivatives
Ombia
Anti-Transpieant
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid
Lacura men
Anti-Transpirant Coolfresh
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid
Cosmia
Anti-transpirant dry protect
Lists fragrance, fragrance allergens
Cosmia
Anti-transpirant no trace
Lists fragrance
Cosmia
Anti-transpirant soft skin
Lists fragrance, fragrance allergens
Derma E
Anti-Wrinkle Cleanser
Cleanser · Lists fragrance, exfoliating acid, retinoid, coconut derivatives
Derma E
Anti-Wrinkle Renewal Cream
Moisturizer · Lists fragrance, retinoid
Derma E
Anti-Wrinkle Smoothing Eye Cream
Eye cream · Lists exfoliating acid, retinoid
alverde
Après lotion mit mir
Lists drying alcohol, coconut derivatives
Cosmia
Après shampoing extra doux
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Cien
Après shampooing
Lists fragrance, fragrance allergens, drying alcohol
l-oreal
Après soleil, lait hydratant apaisant au concentré de cactus
Lists fragrance, fragrance allergens, parabens, silicones
alverde
Après-Lotion Bio-Aloe Vera
Lists fragrance, fragrance allergens, drying alcohol, coconut derivatives
Cien
Après-Soleil
Lists fragrance, fragrance allergens, drying alcohol, silicones
Vichy
Aqua Thermal - Baume Éveil Regard
Lists silicones
L’Oréal
aquasource
Lists fragrance, drying alcohol, silicones
The Body Shop
Arber Hair & Body Wash
Body wash · Lists fragrance, fragrance allergens, essential oils, sulfates, coconut derivatives
L’Oréal
Arbre à thé - Gommage purifiant
Lists fragrance allergens, essential oils, sulfates
Love Beauty and Planet
Argan Oil & Lavender Shampoo
Lists fragrance, drying alcohol, sulfates, coconut derivatives
L’Oréal
Arginine resist X3 shampooing renforçateur
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
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