Sodium Hydroxide
Sodium Hydroxide is a buffering and denaturant ingredient. It’s in 2,160 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
Cosmia
Recharge gel lavant mains
0.5 l · Label from France · Lists fragrance, fragrance allergens, coconut derivatives
Cosmia
Recharge gel lavant mains sans parfum
0.5 l · Label from France · Lists sulfates, coconut derivatives
L’Oréal
Reconstructing Shampoo Honey Treasures
250 ml · Label from Romania · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
Cetaphil
Redness Relieving Night Moisturizer
Moisturizer · Lists silicones, coconut derivatives
COOLA
Refreshing Water Cream - Face Moisturizer with SPF 50
Sunscreen · Ingredients incomplete, can’t check
Nivea
Refreshing White Peach and Jasmine Body Wash
Body wash · 20 mL · Lists fragrance, sulfates, chemical UV filters, coconut derivatives
Nivea
Refreshing Wild Berries and Hibiscus with Nourishing Serum
Serum · 20 mL · Lists fragrance, sulfates, chemical UV filters, coconut derivatives
Deliplus
Regen skin Deliplus
Label from Portugal · Lists fragrance, silicones, salicylic acid
Palmolive
Reinigende Tonerde
250 ml · Label from Germany · Lists fragrance, fragrance allergens, sulfates, salicylic acid, coconut derivatives
Lacura
Reinigungsmilch Classic
250ml · Label from Germany · Lists fragrance, fragrance allergens, sulfates
renewing and argon oil of Morocco shampoo
Ingredients incomplete, can’t check
Murad
Renewing Face Cleansing Cream
Cleanser · Lists fragrance, exfoliating acid, chemical UV filters, coconut derivatives
L’Oréal
Rénovateur Anti-Taches Nuit
30 ml · Label from France · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid
Deliplus
Repair
Label from Morocco · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, silicones
Henkel
Repair Shampoo
440 ml · Label from Austria · Ingredients incomplete, can’t check
L’Oréal
Respons Shine Shampoo Mother of Pearl & Cherry Extract
250 ml · Label from France · Lists fragrance, fragrance allergens, sulfates, silicones, coconut derivatives
Freeman
Restorative Facial Exfoliator + Cleanser
Cleanser · Lists fragrance, fragrance allergens, coconut derivatives
Acure
Resurfacing Cleanser with 1% Glycolic Acid & Unicorn Root
Cleanser · Lists exfoliating acid, essential oils, coconut derivatives
Andalou Naturals
Resurfacing Glycolic Cleansing Gel
Cleanser · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, coconut derivatives
Obagi
Resurfacing Multi-Acid Peel Pads
Exfoliant · Lists drying alcohol, exfoliating acid, salicylic acid
Andalou Naturals
Resurfacing Overnight Glycolic Serum
Serum · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, coconut derivatives
Philosophy
resurfacing solution
Exfoliant · Lists drying alcohol, exfoliating acid
Grown Alchemist
Resurfacing Targeted Body Cleanser
Body wash · 300ml · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, salicylic acid, coconut derivatives
Andalou Naturals
Resurfacing Texture Refining Night Cream
Moisturizer · Lists fragrance, fragrance allergens, exfoliating acid, essential oils
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