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 21, 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
Zum
Patchouli Zum Body Soap
Body wash · Lists fragrance, coconut derivatives
Mixsoon
PDRN Collagen Gel Cleanser
Cleanser · Lists fragrance, coconut derivatives
Peach & Lily
Peach Slices Acne Oil-Free Moisturizer with Salicylic Acid
Moisturizer · None of Poliage’s flag groups listed
K18
PEPTIDE PREP™ detox shampoo
Shampoo · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, salicylic acid, coconut derivatives
Act+Acre
Plant Based Stem Cell Shampoo™
Shampoo · Lists fragrance, essential oils, coconut derivatives
Unilever
Pond’s Pure Detox Pollution Clear
Lists fragrance, fragrance allergens
bareMinerals
Poreless Clay Cleanser
Lists coconut derivatives
belif
Problem Solution Cleansing Foam
Lists fragrance, fragrance allergens, essential oils, coconut derivatives
L’Oréal
PRODIGY 6.0 LIN Blond foncé
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, silicones
Nivea
Protect & Care
Lists fragrance, fragrance allergens, coconut derivatives
NIVEA MEN
Protect & Care Rasiercreme
Lists fragrance, fragrance allergens, silicones, coconut derivatives
L’Oréal
Pure Charcoal Mask
Lists fragrance, drying alcohol, salicylic acid
First Aid Beauty
Pure Skin Deep Cleanser with Red Clay
Lists coconut derivatives
Shiseido
Pureness Gel-Crème hydratant Shiseido
Lists fragrance, fragrance allergens, drying alcohol, parabens, silicones
Renee Rouleau
Purifying Face Wash
Cleanser · Lists essential oils, coconut derivatives
Cosmia
Q10 - recharge creme jour anti-rides
Lists fragrance
Palmolive
Rasiercreme Sensitive (with Palm Extract)
Lists fragrance, fragrance allergens, coconut derivatives
Cosmia
Recharge gel lavant mains
Lists fragrance, fragrance allergens, coconut derivatives
Grown Alchemist
Restorative Body Cream
Body lotion · Lists fragrance, fragrance allergens, essential oils
Freeman
Restorative Facial Cleanser + Mask
Mask · Lists fragrance, fragrance allergens, exfoliating acid
Cosmia
Rituel Soin Éclat
Lists fragrance, fragrance allergens, exfoliating acid
Fekkai
Root Lift
Hair styling · Lists fragrance, fragrance allergens, exfoliating acid
Thayers
Rose Water Toner with Witch Hazel: Rose Petal
Toner · Lists fragrance, fragrance allergens
Gold Bond
Rough & Bumpy Skin Daily Therapy Cream
Body lotion · Lists exfoliating acid, silicones, salicylic acid
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