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
Clarins
Extra Firming Jour
Lists fragrance, silicones
Sensodyne
Extra Fresh Toothpaste
Lists fragrance, fragrance allergens, coconut derivatives
Le Petit Marseilliais
Extra Gentle Coconut Shower and Bath Cream
Body wash · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Cetaphil
Extra Gentle Daily Scrub
Exfoliant · Lists fragrance, coconut derivatives
Johnsons
extra sensitive wipes
None of Poliage’s flag groups listed
Rimmel London
Extra Super Lash Mascara
Mascara · Lists retinoid
Sensodyne
Extra Whitening
Lists fragrance, coconut derivatives
Redken
Extreme Shampoo
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
Maelove
Eye Enhancer De-Puffing Peptide Cream
Eye cream · None of Poliage’s flag groups listed
CeraVe
Eye Repair Cream
Eye cream · Lists silicones
Bliss
Fab Foaming 2-in-1 Gel Facial Cleanser & Exfoliator
Cleanser · Lists fragrance, chemical UV filters, coconut derivatives
COOLA
Face Sunscreen Lotion - White Tea
Sunscreen · Lists fragrance, fragrance allergens, silicones, chemical UV filters
Deliplus
facial clean
Lists fragrance, fragrance allergens, exfoliating acid
Maelove
Fade Away Brightening Serum
Serum · Lists drying alcohol, essential oils
Fairytale
Lists fragrance, fragrance allergens, parabens, silicones
Balea
Family Shampoo
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
Fenty Skin
Fat Water Hydrating Milky Toner Essence with Hyaluronic Acid + Tamarind
Toner · Lists fragrance, fragrance allergens, coconut derivatives
Palmolive
Feel the message
Lists fragrance, fragrance allergens, sulfates, salicylic acid, coconut derivatives
Olay
Firming & Hydrating Body Lotion with Collagen
Body lotion · Lists fragrance, fragrance allergens, silicones
Séphora
Fleur de coton crème lavante mains
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Neutrogena
fluida corpo, idratazione intensa
Lists fragrance, silicones
Asda
Foam Bath
Lists fragrance, sulfates, coconut derivatives
Dr Teal’s
Foaming Bath
Lists fragrance, sulfates, silicones, coconut derivatives
Dr Teal’s
Foaming Bath with Pure Epsom Salt Cannabis Sativa Hemp Seed Oil with Essential Oil Blend
Lists fragrance, essential oils, sulfates, silicones
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