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
Maison Louis Marie
Body Lotion - No.13 Nouvelle Vague
Body lotion · Lists fragrance, fragrance allergens
The Body Shop
Body lotion to oil
Lists fragrance, fragrance allergens, coconut derivatives
Nivea
Body lotion with Aloe Protection
Lists fragrance, fragrance allergens, silicones, chemical UV filters
Nivea
Body oil in lotion coconut & huile de monoï
Lists fragrance, fragrance allergens, drying alcohol, sulfates, silicones, coconut derivatives
Garnier
Body superfood
Lists exfoliating acid
L’Oréal
Body Tonic Lait hydratant fermeté
Lists fragrance, fragrance allergens, drying alcohol, silicones
softsoap
body wash
Lists fragrance, sulfates, salicylic acid, coconut derivatives
body wash
Lists fragrance, sulfates, salicylic acid, coconut derivatives
body wash
Lists fragrance, sulfates, coconut derivatives
Balea
Bodygel Aloe Vera
Lists fragrance
Ombia
Bodylotion
Lists fragrance, fragrance allergens, sulfates, silicones
Balea
Bodylotion Sommerwonne
Lists fragrance, drying alcohol
Inika Organic
Bold Lash Mascara
Mascara · None of Poliage’s flag groups listed
Kristin Ess
Bond Fortifying Serum
Hair styling · Lists fragrance, fragrance allergens
Suave
Bonding Infusion Repairing Shampoo
Shampoo · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, coconut derivatives
Drunk Elephant
Bora Barrier Rich Repair Refillable Moisturizer with 6-Butterlipid Complex
Moisturizer · Lists coconut derivatives
Nivea
Botanical Blossom
Body wash · Lists sulfates, salicylic acid, coconut derivatives
Nivea
Botanical Blossom Body Wash
Body wash · Lists fragrance, sulfates, salicylic acid, coconut derivatives
Laneige
Bouncy & Firm Serum
Serum · Lists fragrance, fragrance allergens
Curlsmith
Bouncy Strength Volume Foam
Hair styling · Lists fragrance, fragrance allergens, coconut derivatives
Dermalogica
Breakout Clearing Foaming Wash
Cleanser · Lists exfoliating acid, essential oils, salicylic acid, coconut derivatives
DG health
Breath Defense Oral Rinse
None of Poliage’s flag groups listed
AmLactin
Bright & Smooth Serum
Serum · Lists exfoliating acid, coconut derivatives
Thrive Causemetics
Bright Balance 2-in-1 Instant Exfoliator
Exfoliant · Lists exfoliating acid, salicylic acid, coconut derivatives
Related guides
How to read an ingredient list
What the ingredient list on a beauty product tells you, what the names mean, and what it leaves out, using FDA and EU labeling rules.
Does ingredient order show how much is in a product?
Ingredient lists run from most to least, but only down to 1%. Below that, any order is allowed. What the order shows and what it hides.
How do you patch test a new product?
What the AAD, FDA and DermNet say about testing a small area, the FDA hair dye skin test, in-office patch tests, and contact allergy basics.