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
Naturium
Azelaic Acid Emulsion 10%
Moisturizer · Lists fragrance allergens, coconut derivatives
Medicube
Azelaic Acid Niacinamide Toner
Toner · None of Poliage’s flag groups listed
Drunk Elephant
B-Goldi Bright Illuminating Drops with 5% Niacinamide
Serum · Lists coconut derivatives
NIVEA Sun
babies & kids sensitive protect 50+
Sunscreen · Lists drying alcohol, chemical UV filters
Aveeno
Baby Cleansing Therapy Moisturizing Wash
Lists coconut derivatives
Cetaphil
Baby Daily Lotion
Body lotion · Lists fragrance, coconut derivatives
Aveeno
Baby Daily Moisture Wash & Shampoo
Lists fragrance, coconut derivatives
Aveeno
Baby Eczema Therapy Nighttime Balm
Lists fragrance allergens, sulfates, silicones
Johnson’s
baby extracare lotion
Lists fragrance
Johnson’s
Baby Lotion
Body lotion · Lists fragrance, silicones
Cetaphil
Baby Wash and Shampoo
Shampoo · Lists fragrance, sulfates, coconut derivatives
Uoma Beauty
BADDER BOOM - AU NATUREL VOLUMIZING MASCARA
Mascara · None of Poliage’s flag groups listed
Auchan
Bain moussant parfum pomme
Lists fragrance, sulfates, coconut derivatives
The Body Shop
Baked Gingerbread & Brown Sugar Body Scrub
Exfoliant · Lists fragrance, fragrance allergens, essential oils, chemical UV filters
Follain
Balancing Cleanser: Oil Control
Lists coconut derivatives
Act+Acre
Balancing Shampoo
Shampoo · Lists fragrance, essential oils, coconut derivatives
Skinfix
Balancing Soft-Foam Clay Cleanser
Cleanser · Lists coconut derivatives
Balea
Balea Flüssigseife Very Cherry, 500 ml
Lists fragrance, fragrance allergens, essential oils, sulfates, coconut derivatives
dm
Balea Leichte Bodylotion
Lists fragrance, fragrance allergens
DM
Balea Men Fresh Shampoo
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
Yves Rocher
Bálsamo After Shave
Lists fragrance
Nivea
Balsamo Dopobarba
Lists fragrance, fragrance allergens, drying alcohol, silicones, coconut derivatives
Suave
Bamboo & Hibiscus Volumizing Shampoo
Shampoo · Lists fragrance, sulfates, coconut derivatives
OGX
Bamboo fiver-full shampoo
Lists fragrance, fragrance allergens, exfoliating acid, silicones, formaldehyde releasers, coconut derivatives
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