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
Biore
Hydrate & Glow Serum
Serum · Lists coconut derivatives
Jergens
Hydrating Coconut Lotion
Body lotion · Lists fragrance, parabens, silicones, coconut derivatives
CeraVe
Hydrating cream-to-foam cleanser
Lists exfoliating acid, salicylic acid, coconut derivatives
Cien
Hydrating facial cleanser
Lists coconut derivatives
CeraVe
Hydrating Foaming Oil Cleanser
Cleanser · Lists coconut derivatives
Kopari
Hydrating Gel Body Wash
Body wash · Lists fragrance, fragrance allergens, coconut derivatives
Oars + Alps
Hydrating Gel Face Wash
Cleanser · Lists fragrance allergens, essential oils, coconut derivatives
CeraVe
Hydrating Hyaluronic Acid Serum
Serum · Lists silicones
CeraVe
Hydrating Hyaluronic Acid Water Gel Face Moisturizer
Moisturizer · Lists silicones
Caudalie
Hydrating Hyaluronic Serum
Serum · Lists fragrance
Harry’s
Hydrating Night Lotion
Moisturizer · Lists fragrance, fragrance allergens, silicones
CeraVe
Hydrating Toner
Toner · None of Poliage’s flag groups listed
First Aid Beauty
Hydrating Toner with Squalane + Oats
Toner · Lists chemical UV filters
Equate beauty
Hydration Gel
Lists fragrance, silicones
La roche-posay
Hydreane legere
Lists fragrance, silicones
Neutrogena
Hydro Boost
Lists fragrance, silicones
Neutrogena
Hydro Boost Aqua-Gel
Lists fragrance, parabens, silicones
Neutrogena
Hydro Boost Gentle Cleansing Lotion
None of Poliage’s flag groups listed
Neutrogena
Hydro Boost Water Gel
Lists fragrance, silicones
Neutrogena
Hydro Boost Water Gel Lotion SPF 50
Lists fragrance, drying alcohol, silicones, chemical UV filters
l-oreal
Hydro Energetic Soin Hydratant Anti-Fatigue 24H
Lists fragrance, fragrance allergens, drying alcohol, silicones
Baxter of California
HYDRO SALVE BODY LOTION
Body lotion · Lists fragrance, fragrance allergens, essential oils, silicones
Colgate
Hygiene Plus Kitchen Handwash
Lists exfoliating acid, sulfates, chemical UV filters, salicylic acid, coconut derivatives
Perricone MD
Hypoallergenic CBD Sensitive Skin Therapy Gentle Cleanser
Lists coconut derivatives
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