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
L’Oréal
Fructis Shampooing fortifiant anti pelliculaire
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
L’Oréal
Fructis Shampooing fortifiant Color Resist
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, chemical UV filters, salicylic acid, coconut derivatives
L’Oréal
Fructis Shampooing fortifiant Hydra Liss 72H
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
L’Oréal
Fructis Shampooing fortifiant Matière & Densité
Lists fragrance, fragrance allergens, drying alcohol, sulfates, coconut derivatives
L’Oréal
Fructis Shampooing fortifiant Pure Volume
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, salicylic acid, coconut derivatives
L’Oréal
Fructis Shampooing fortifiant Vita Boost Fresh
Lists fragrance, fragrance allergens, exfoliating acid, essential oils, sulfates, salicylic acid, coconut derivatives
L’Oréal
Fructis Shampooing fortifiant Vita Boost Shine
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, salicylic acid, coconut derivatives
Yves rocher
Fruits noirs crème mains
Lists fragrance, fragrance allergens, silicones
PUR Cosmetics
Fully Charged Mascara Powered by Magnetic Technology
Mascara · Lists drying alcohol
Balea
Fuß & Bein Eisgel
Lists fragrance allergens, drying alcohol, essential oils
Lacura
Fußbalsam - Oliven- & Rosmarinöl
Lists fragrance, fragrance allergens, essential oils
Victoria Beckham Beauty
Future Lash Mascara
Mascara · None of Poliage’s flag groups listed
K18
FutureIQ™ biomimetic hair longevity serum
Hair styling · None of Poliage’s flag groups listed
L’Oréal
Garnier Fructis Force Ultime
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
Garnier fructis shampoo
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
Garnier Fructis
Garnier Fructis Shampoo
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
L’Oréal
Garnier Fructis Алоэ Superfood
Lists fragrance, fragrance allergens, exfoliating acid, salicylic acid, coconut derivatives
Garnier Fructis
Garnier Fructis, Banana hair food, hair mask
Lists fragrance, fragrance allergens, exfoliating acid, salicylic acid, coconut derivatives
L’Oréal
Garnier Ultra Doux Shampooing Détox Thé Vert et 5 Plantes Bienfaisantes
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, sulfates, salicylic acid, coconut derivatives
Garnigr Whole Blends
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
Neutrogena
Gel Creme Hidratante para Área dos Olhos Neutrogena Hydro Boost com 15g
Lists silicones
Deliplus
Gel de argán
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, coconut derivatives
deliplus
GEL DE BAÑO - AVENA CON VITAMINA B3 (PIEL SENSIBLE)
Lists fragrance, sulfates, coconut derivatives
Deliplus
Gel de baño 10% urea
Lists exfoliating acid, sulfates, coconut derivatives
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