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
TRESemmé
TRESemmé Intensa Hidratación
100 mL ℮ · Label from Spain · Lists fragrance, fragrance allergens, essential oils, sulfates, silicones, coconut derivatives
Tresemmé
Tresemmé shampoo and conditioner
Shampoo · 500 ml · Label from Iceland · Lists fragrance, fragrance allergens, essential oils, sulfates, silicones, coconut derivatives
Renee Rouleau
Triple Berry Smoothing Peel
Exfoliant · Lists fragrance, exfoliating acid, essential oils
Renee Rouleau
Triple Berry Smoothing Scrub
Exfoliant · Lists fragrance, exfoliating acid, essential oils, coconut derivatives
Josie Maran
Triple Hydroxy Resurfacing Liquid
Exfoliant · Lists exfoliating acid
Hempz
Triple Moisture Fresh Citrus Body Wash
Body wash · 17 fl. oz · Lists fragrance, fragrance allergens, coconut derivatives
Garnier
Triple Nutrition Shampoo
Shampoo · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
Aquafresh
Triple protection + blancheur
100ml · Label from France · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Kenra Professional
Triple Repair Conditioner
Conditioner · 10.1 fl oz · Lists fragrance, fragrance allergens, drying alcohol, silicones
Kenra Professional
Triple Repair Shampoo
Shampoo · 10.1 fl oz · Lists fragrance, fragrance allergens, exfoliating acid, silicones, coconut derivatives
Philosophy
triple-acid brightening peel
Exfoliant · Lists drying alcohol, exfoliating acid
K18
TripleBright oxidation defense purple shampoo
Shampoo · Lists fragrance, fragrance allergens, essential oils, coconut derivatives
Tree Hut
Tropic Glow Whipped Body Butter
Body lotion · 8.4 oz · Lists fragrance, fragrance allergens, silicones
True Botanicals
True Botanicals facial
Lists exfoliating acid, essential oils, salicylic acid
Kenra Professional
Truly Thickening Conditioner
Conditioner · 8.5 fl oz · Lists fragrance, fragrance allergens, essential oils, silicones
Kenra Professional
Truly Thickening Shampoo
Shampoo · 8.5 fl oz · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, silicones, coconut derivatives
Tula
Tula 24/7 ultra hydrating
10000 · Lists fragrance, fragrance allergens, exfoliating acid
Tula
Tula bright start
10000 · Lists fragrance allergens, exfoliating acid, essential oils
Tula
TULA gentle daily facial cleanser
10000 · Lists fragrance, fragrance allergens, coconut derivatives
Tula
Tula moisturiser +spf30
10000 · Ingredients incomplete, can’t check
R+Co
TURNTABLE Curl Defining Crème
Hair styling · 5 OZ · Lists fragrance, fragrance allergens, coconut derivatives
Tree Hut
Twinkling Tulip Foaming Gel Wash
Body wash · Lists fragrance, fragrance allergens, essential oils, coconut derivatives
Medik8
Ultimate Recovery Bio-Cellulose Mask
Mask · Lists coconut derivatives
Garnier
Ultra Dolce
250ml · Label from Italy · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
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