Potassium Hydroxide
Potassium Hydroxide is a buffering ingredient. It’s in 254 products on Poliage, most often body lotion, shampoo and cleanser. Avoid lists on Poliage that include it: none.
Updated October 23, 2026
In plain English
Potash lye. Used in small amounts to adjust pH or to turn fats into soap.
What it does
Contains Potassium Hydroxide: buffering
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 36981, accessed October 22, 2026. Also listed as kalii hydroxidum.
Products that contain Potassium Hydroxide
R+Co
METAL DETECTOR Detox Shampoo
Shampoo · Lists fragrance, fragrance allergens, coconut derivatives
milk plus cleaning
None of Poliage’s flag groups listed
Jasön
Moisturizing gel
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid
Unilever
Monsavon Bol à Raser Pour Rasage Traditionnel 125g
Lists fragrance, fragrance allergens
Versed
Mood Lighting Glow Drops
Serum · None of Poliage’s flag groups listed
Naturium
Multi-Active Exosome Serum
Serum · None of Poliage’s flag groups listed
Dermalogica
Multivitamin Power Recovery Masque
Mask · Lists exfoliating acid, retinoid, essential oils, silicones
Harry’s
Muscle Recovery Body Wash
Body wash · Lists fragrance, fragrance allergens, essential oils, coconut derivatives
Nair
Nair Sensitive Hair Removal Cream
Lists fragrance, fragrance allergens, sulfates, parabens, silicones
I Dew Care
Namaste Kitten Clarifying Cannabis Sativa Hemp Seed Oil Cleanser
Lists fragrance, coconut derivatives
Henkel
Natural & Easy 545 blond cendré
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
NARS
Natural Radiant Longwear Foundation
Foundation · Lists silicones
Selsun Blue
Naturals Itchy Dry Scalp Antidandruff Shampoo
Shampoo · Lists exfoliating acid, sulfates, salicylic acid, coconut derivatives
Philosophy
Nature In A Jar Gentle Detoxifying Cleanser With Agave
Lists coconut derivatives
Nivea
Nivea Men Sensitive Mousse à raser
Lists fragrance, parabens, coconut derivatives
Juliette Has a Gun
Not a Shower Gel
Body wash · Lists fragrance, coconut derivatives
Unilever
Nourishing Secrets Ritual Restaurador
Lists fragrance, fragrance allergens, parabens, silicones, coconut derivatives
Thayers
Oil Balancing Jelly Toner for Oily Skin
Toner · Lists exfoliating acid, salicylic acid
Dr. Dennis Gross
Oil-Free Radiant Moisturizer
Moisturizer · Lists exfoliating acid
Dr. Dennis Gross
On the Spot Eliminator 2% Salicylic Acid Acne Treatment Gel
Serum · Lists fragrance allergens, drying alcohol, exfoliating acid, retinoid
Physicians Formula
Organic Wear Tinted Lip Treatment
Lip · Lists fragrance, coconut derivatives
Thayers
Original Witch Hazel Facial Toner with Aloe Vera
Toner · Lists fragrance, fragrance allergens
Henkel
Palette Salon Colors 8.5
Lists fragrance, fragrance allergens, sulfates, parabens
Palmolive
Palmolive For Men Classic Scheercrème
Lists fragrance, fragrance allergens, coconut derivatives
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