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 23, 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
Summer
CROWE SUN CARE
Lists fragrance, fragrance allergens, chemical UV filters, coconut derivatives
boscia
Cryosea Firming Icy-cold Cleanser
Lists exfoliating acid, coconut derivatives
Garnier
Cucumber Fresh shampoo
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, salicylic acid, coconut derivatives
Kiehl’s Since 1851
Cucumber Herbal Conditioning Cleanser
Lists fragrance allergens, exfoliating acid, essential oils, salicylic acid, coconut derivatives
Unilever
Cuidado óleo-nutritivo aceite de argán
Lists fragrance, fragrance allergens, formaldehyde releasers, coconut derivatives
Kristin Ess
Curl Conditioner
Conditioner · Lists fragrance, fragrance allergens
Curlsmith
Curl Conditioning Oil-In-Cream
Hair styling · Lists fragrance, fragrance allergens, essential oils, coconut derivatives
Garnier
Curl Nourish Shampoo
Shampoo · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, salicylic acid, coconut derivatives
Deliplus
Curl perfect, leave in mask
Lists fragrance, fragrance allergens, coconut derivatives
Curlsmith
Curl Reset Detox Shampoo
Shampoo · Lists fragrance, fragrance allergens, essential oils, coconut derivatives
Kristin Ess
Curl Shampoo
Shampoo · Lists fragrance, fragrance allergens, coconut derivatives
Inika Organic
Curvy Lash Mascara
Mascara · None of Poliage’s flag groups listed
cvs max sensitive toothpaste
Lists fragrance, coconut derivatives
Differin
Daily Brightening Exfoliator
Exfoliant · Lists coconut derivatives
Garnier
Daily Care 2-in-1 Shampoo & Conditioner
Shampoo · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, sulfates, silicones, salicylic acid, coconut derivatives
Garnier
Daily Care Shampoo
Shampoo · Lists fragrance, fragrance allergens, essential oils, sulfates, silicones, coconut derivatives
Cetaphil
Daily Facial Moisturizer SPF 35
Sunscreen · Lists chemical UV filters
Dermalogica
Daily Glycolic Cleanser
Cleanser · Lists fragrance allergens, exfoliating acid, essential oils, coconut derivatives
Cetaphil
Daily Hydrating Lotion
Body lotion · Lists silicones
Eucerin
Daily Hydration Lotion
Body lotion · Lists silicones
Act+Acre
Daily Hydro™ Hydrating Conditioner
Conditioner · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, essential oils
Act+Acre
Daily Hydro™ Hydrating Shampoo
Shampoo · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, essential oils, coconut derivatives
Jergens
Daily Moisture
Body lotion · Lists fragrance, parabens, silicones
Aveeno
Daily Moisturing Face Cream
Moisturizer · Lists silicones
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