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
CeraVe
Brightening Vitamin C Cleanser
Cleanser · Lists exfoliating acid, salicylic acid, coconut derivatives
Henkel
Brillance coloration permanente intense 891 Noir bleuté
Lists fragrance, fragrance allergens, sulfates, parabens, silicones, coconut derivatives
Fekkai
Brilliant Gloss Conditioner
Conditioner · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid
Fekkai
Brilliant Gloss Shampoo Moisturizing Hi-Shine
Shampoo · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, coconut derivatives
Bumble and Bumble hair gel
Lists fragrance, fragrance allergens
Essence
Bye Bye Panda Eyes! Smudge-proof Volumizing And Defining Mascara
Mascara · None of Poliage’s flag groups listed
R+Co
CASSETTE Curl Defining Shampoo + Superseed Oil Complex
Shampoo · Lists fragrance, fragrance allergens, exfoliating acid, silicones, chemical UV filters, salicylic acid, coconut derivatives
Shiseido
Clarifying Cleansing Foam
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Banila Co
Clean It Zero Foam Cleanser
Lists fragrance
Juice Beauty
Cleansing Milk
None of Poliage’s flag groups listed
Gold Bond
Cocoa Butter Glow Daily Hydrating Lotion
Body lotion · Lists fragrance, exfoliating acid, silicones, coconut derivatives
Tocobo
Coconut Clay Cleansing Foam
Cleanser · Lists fragrance, coconut derivatives
Pacifica
Coconut Milk Cream to Foam Face Wash
Lists fragrance, fragrance allergens, coconut derivatives
Thayers
Coconut Water Facial Toner with Witch Hazel
Toner · Lists fragrance, fragrance allergens, coconut derivatives
Colgate
Colgate Max White One
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Colgate
Colgate Sensation White
Lists fragrance, fragrance allergens, sulfates
Colgate
Colgate Serúm Purple white
Lists fragrance, fragrance allergens, coconut derivatives
levia
collagen and milk body lotion
Lists fragrance, formaldehyde releasers
Moroccanoil
Color Care Shampoo
Shampoo · Lists fragrance, fragrance allergens, silicones, coconut derivatives
L’Oréal
Color-Vive Soin démêlant instantané Cheveux colorés ou mêchés
Lists fragrance, fragrance allergens, drying alcohol, silicones, chemical UV filters
Henkel
Coloration crème soin à l’huile d’argan Châtain caramel 660
Lists fragrance, fragrance allergens, sulfates, parabens
Fenty Skin
Cookies N Clean Whipped Clay Pore Detox Face Mask With Salicylic Acid + Charcoal
Mask · Lists exfoliating acid, salicylic acid
belif
Creamy Cleansing Foam Moist
Lists fragrance, fragrance allergens, coconut derivatives
Dr. Dennis Gross
Creamy Cleansing Oil
Cleanser · Lists exfoliating acid, essential oils, coconut derivatives
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