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
Dermalogica
Oil to Foam Total Cleanser
Cleanser · Lists fragrance allergens, essential oils, coconut derivatives
Caudalie
Oil-Control Moisturizer for Acne Prone Skin
Moisturizer · Lists fragrance allergens, drying alcohol, essential oils, coconut derivatives
Neutrogena
Oil-Free Acne Wash
9.1 fl oz · Lists fragrance, exfoliating acid, salicylic acid, coconut derivatives
Dr. Dennis Gross
Oil-Free Radiant Moisturizer
Moisturizer · Lists exfoliating acid
OLAY
OLAY beauty fluid
200 ml · Label from Spain · Lists parabens, silicones, coconut derivatives
L’Oréal
ÓLEO EXTRAORDINÁRIO CACHOS CREME PARA PENTEAR 250ML
250 ml · Label from Brazil · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, silicones, salicylic acid, coconut derivatives
The Body Shop
Olive Body Lotion
Body lotion · 200ml · Lists fragrance, fragrance allergens, silicones
Ombia
Ombia Med waslotion sensitief
500 ml · Label from Netherlands · Lists exfoliating acid, sulfates, coconut derivatives
R+Co
On A Cloud Baobab Oil Repair Shampoo
Lists fragrance, fragrance allergens, silicones, coconut derivatives
R+Co
ON A CLOUD Bond Building + Repair Oil Conditioner
Conditioner · Lists fragrance, fragrance allergens, essential oils, silicones
R+Co
ON A CLOUD Bond building + Repair Oil Leave-In Conditioner
Conditioner · 4.2 OZ · Lists fragrance, fragrance allergens, silicones
R+Co
ON A CLOUD Bond Building + Repair Oil Shampoo
Shampoo · 8.5 OZ · Lists fragrance, fragrance allergens, silicones, coconut derivatives
PUR Cosmetics
On Point Mascara
Mascara · Lists silicones
L’Oréal
only the brave
150 ml · Label from Germany · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, salicylic acid, coconut derivatives
Palmolive
Optims
Label from Spain · Ingredients incomplete, can’t check
Superdrug
Optimum Peptide Eye Cream
Eye cream · 30 ml · Label from United Kingdom · Lists silicones
Oral B
Oral B 1 2 3 Extra fresh
100 ml · Label from United Kingdom · Lists fragrance, fragrance allergens, sulfates
Oral B
oral b complete
75 ml · Label from France and Netherlands · Ingredients incomplete, can’t check
Oral-B
Oral-B 3D White Luxe
500ml · Label from France · Lists fragrance, fragrance allergens, sulfates
Oral B
Oral-B 3D WHITE LUXE éclat et glamour
75 ml · Label from France · Lists fragrance, fragrance allergens, coconut derivatives
Oral-B
Oral-B Advanced Tandvleesbescherming Frisse Munt Tandpasta
75ml · Label from Netherlands · Lists fragrance, fragrance allergens, essential oils, sulfates
Oral-B
Oral-B Pro-3D White Advanced Diş macunu
75 ml · Label from Turkiye · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Oral B
Oral-B Pro-Expert Professionele Bescherming Tandpasta
75ml · Label from Netherlands · Lists fragrance, fragrance allergens, essential oils, sulfates, coconut derivatives
Oral-B
Oral-B PRO-EXPERTV ADVANCED
75ml · Label from Spain · Lists fragrance, sulfates
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