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

AMLACTIN BODY LOTION
AmLactin
Calm & Renew Lotion
Body lotion · Lists exfoliating acid, coconut derivatives
TREE HUT BODY LOTION
Tree Hut
Candy Cane Hydraglow Body Lotion
Body lotion · Lists fragrance, drying alcohol, silicones
TREE HUT BODY LOTION
Tree Hut
Candy Cane Whipped Body Butter
Body lotion · Lists fragrance, essential oils, silicones
R+CO HAIR STYLING
R+Co
CANDY STRIPE Protect + Prep Detangling Spray
Hair styling · Lists fragrance, fragrance allergens
KIEHL’S SINCE 1851
Kiehl’s Since 1851
Cannabis Sativa Seed Oil Herbal Cleanser
Lists fragrance allergens, exfoliating acid, essential oils, salicylic acid, coconut derivatives
CANTU
Cantu
Cantu Guava Scalp Care Shampoo
Lists fragrance, exfoliating acid, salicylic acid, coconut derivatives
CAROL’S DAUGHTER
Carol’s Daughter
Carol’s Daughter Hair Milk Original Leave-In Moisturizer
Lists fragrance, silicones
LANCER EXFOLIANT
Lancer
Caviar Lime Acid Peel
Exfoliant · Lists fragrance allergens, exfoliating acid, retinoid, essential oils, silicones
CERAVE
CeraVe
CeraVe Eye Repair Cream
Lists silicones
CERAVE
CeraVe
CeraVe Gentle Hydrating Shampoo
Lists exfoliating acid, silicones, salicylic acid, coconut derivatives
CERAVE
CeraVe
CeraVe Hydraterende Schuimende Reinigingsolie
Lists coconut derivatives
CeraVe Itch Relief Moisturizing Lotion
Lists drying alcohol, silicones
CERAVE
CeraVe
CeraVe Schuimende Reinigingsgel
Lists coconut derivatives
GALDERMA
Galderma
Cetaphil
Lists fragrance allergens, silicones
GALDERMA
Galderma
Cetaphil Baby Shea Butter Daily Lotion
Lists fragrance, silicones, coconut derivatives
CETAPHIL
Cetaphil
Cetaphil Moisturizing Cream
Lists fragrance allergens, silicones
CETAPHIL
Cetaphil
Cetaphil Oil-Free Facial Moisturizer with Sunscreen SPF 35
Lists chemical UV filters
CETAPHIL
Cetaphil
Cetaphil Pro Oil Absorbing Moisturizer SPF 30
Lists silicones, chemical UV filters
CETAPHIL
Cetaphil
Cetaphil Pro Oil Removing Foam Wash
Lists fragrance allergens, essential oils, coconut derivatives
BATH AND BODY WORKS
Bath and Body Works
Champagne toast body lotion
Lists fragrance, fragrance allergens, parabens, silicones, formaldehyde releasers
L’ORÉAL
L’Oréal
Champo Fuerza & Brillo
Lists fragrance, fragrance allergens, exfoliating acid, essential oils, sulfates, silicones, salicylic acid, coconut derivatives
PANTENE
Pantene
Champoings
Lists fragrance, fragrance allergens, sulfates, silicones, coconut derivatives
DELIPLUS
Deliplus
Champú anticaída
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, salicylic acid, coconut derivatives
ULTREX
Ultrex
Champú cítrico anticaspa cabello graso
Lists fragrance, fragrance allergens, sulfates, silicones, coconut derivatives

Related guides