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
Fekkai
Technician Color Shampoo + Flash Mask
Shampoo · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, coconut derivatives
Fekkai
Technician Color Shampoo Extended Color Vibrancy
Shampoo · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, coconut derivatives
Dr. Dennis Gross
Texture Renewal Serum
Serum · Lists exfoliating acid, retinoid, salicylic acid
COSRX
The AHA BHA PHA LHA 35 Peel
Exfoliant · Lists exfoliating acid, salicylic acid
The Body Shop Mac’s Root & Aloe softening shaving cream
Lists fragrance, coconut derivatives
Tatcha
The Brightening Eye Cream
Eye cream · None of Poliage’s flag groups listed
Tatcha
The Brightening Serum
Serum · Lists fragrance, fragrance allergens, essential oils
Kevyn Aucoin
The Curling Mascara
Mascara · Lists drying alcohol, parabens
Peach & Lily
The Good Acids Pore Toner - Daily Toner
Toner · Lists exfoliating acid, salicylic acid
Tatcha
The Longevity Memory Cream
Moisturizer · Lists fragrance, fragrance allergens, essential oils, silicones
Naturium
The Multi-Peptide Advanced Body Wash
Body wash · Lists fragrance allergens, coconut derivatives
Tatcha
The Rice Wash
Cleanser · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, essential oils, coconut derivatives
Tatcha
The Silk Serum
Serum · Lists fragrance, fragrance allergens
Kevyn Aucoin
The Volume Mascara
Mascara · Lists drying alcohol, parabens
Gold Bond
Therapeutic Foot Cream
Body lotion · Lists fragrance, retinoid, essential oils, parabens, silicones, formaldehyde releasers
Gold Bond
Tight & Firm Body & Face Lotion
Body lotion · Lists silicones
Laura Mercier
Tinted Moisturizer Blush
Blush · Lists coconut derivatives
L’Oréal
Total Repair 5 Soin démêlant instantané reconstituant Cicamide + Pro-Kératine
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, silicones
Origins
Travel Size Checks and Balances Frothy Face Wash
Lists fragrance allergens, essential oils, coconut derivatives
Skyn Iceland
Travel Size Glacial Face Wash
Lists fragrance, fragrance allergens, drying alcohol, retinoid, chemical UV filters, coconut derivatives
Dr. Dennis Gross
Triple Correction Eye Serum
Eye cream · Lists exfoliating acid, retinoid, salicylic acid
Garnier
Triple Nutrition Conditioner
Conditioner · Lists fragrance, fragrance allergens, drying alcohol, silicones
R+Co
Tzatziki
Shampoo · Lists fragrance, fragrance allergens, exfoliating acid, silicones, chemical UV filters, salicylic acid, coconut derivatives
L’Oréal
Ultra Doux Douche Soin Savon traditionnel & Pin Maritime
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, salicylic acid, coconut derivatives
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