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 22, 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
Derma E
Advanced Peptides and Vegan Flora-Collagen Eye Cream
Eye cream · Lists silicones
Lubriderm
Advanced Therapy Lotion
Lists fragrance, retinoid, parabens, silicones, formaldehyde releasers
Colgate
Advanced White
Lists fragrance, fragrance allergens, sulfates
Balea
After Shave Balm ultra sensitive
Lists drying alcohol
Adidas
After sport Body hair face 3
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Cien
After sun
Lists fragrance, fragrance allergens, drying alcohol
Nivea
After Sun Hidratante
Lists fragrance, fragrance allergens, drying alcohol, sulfates, silicones
Dermalogica
Age Bright Clearing Serum
Serum · Lists exfoliating acid, essential oils, salicylic acid
Kiehl’s Since 1851
Age Defender Dual Action Exfoliating Cleanser
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, salicylic acid, coconut derivatives
Nivea
Age Defense Eye Cream
Eye cream · Lists coconut derivatives
age fighter
Lists retinoid, parabens, silicones
Dermalogica
Age Reversal Eye Complex
Eye cream · Lists retinoid, silicones
AgeDefy
AgeDefy soin après-shampoing
Lists fragrance, fragrance allergens, drying alcohol, silicones
Mad Hippie
AHA + BHA Milk Serum
Exfoliant · Lists exfoliating acid, salicylic acid
The Ordinary
AHA 30% + BHA 2% Peeling Solution
Exfoliant · Lists exfoliating acid, salicylic acid, coconut derivatives
Renee Rouleau
AHA BHA Blemish Control Cleanser
Cleanser · Lists exfoliating acid, essential oils, salicylic acid, coconut derivatives
Tocobo
AHA BHA Lemon Toner
Toner · Lists fragrance allergens, drying alcohol, exfoliating acid, essential oils, salicylic acid
Dr. Dennis Gross
AHA/BHA Daily Cleansing Gel
Cleanser · Lists fragrance allergens, exfoliating acid, coconut derivatives
Obagi
AHA+PHA Smoothing Micro-Peel
Exfoliant · Lists exfoliating acid
Kenra Professional
Air Dry Crème 6
Hair styling · Lists fragrance, fragrance allergens, essential oils, silicones
Dr. Bronner’s
All-One Lavender Pure-Castile Bar Soap
Lists fragrance allergens
Dr. Bronner’s
All-One Rose Pure-Castile Bar Soap
Lists fragrance
almond milk & honey
Lists fragrance
L’Oréal
ALMOND MILK & HONEY For Sensitive, Dry Skin
Lists fragrance
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