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
CeraVe
Hyrdrating Cream To Foam Cleanser
Lists exfoliating acid, salicylic acid, coconut derivatives
SHEGLAM
Ice Revive Scalp Serum
Serum · Lists fragrance, fragrance allergens, essential oils
neutro roberts
idratante con glicerina naturale
Lists fragrance, sulfates, formaldehyde releasers, coconut derivatives
Garnier
Illuminating Shampoo with Moroccan Argan & Camellia Oils
Shampoo · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, salicylic acid, coconut derivatives
Kjaer Weis
Im-Possible Mascara
Mascara · Lists fragrance allergens, drying alcohol
Null
Indigo
Lists fragrance, fragrance allergens, silicones
First Aid Beauty
Ingrown Hair Pads with BHA + AHA
Exfoliant · Lists exfoliating acid, salicylic acid
Caudalie
Instant Brightening Micropeel
Exfoliant · Lists fragrance, exfoliating acid, coconut derivatives
Caudalie
Instant Firming Retinol Alternative Serum with Pro-Collagen Multi-Peptides
Serum · Lists fragrance, fragrance allergens, essential oils
Philosophy
instant glow peeling mousse
Exfoliant · Lists fragrance, drying alcohol, coconut derivatives
Head & Shoulders
Instant Oil Control
Lists fragrance, fragrance allergens, sulfates, silicones, coconut derivatives
Cosmia
Instant voluptueux gel douche
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Aquafresh
Intense Clean
Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Nivea
Intense Healing Body Cream
Body lotion · Lists sulfates, silicones
Nivea
Intense Healing Body Lotion
Body lotion · Lists fragrance, sulfates, silicones
head & shoulders
Intense hydration
Lists fragrance, fragrance allergens, sulfates, silicones, salicylic acid, coconut derivatives
Naturium
Intense Overnight Sleeping Cream
Moisturizer · None of Poliage’s flag groups listed
johnson-johnson
Intense Repair
Lists fragrance
Syoss
Intense Repair Tiefenspülung
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, silicones
Olay
Intensely Hydrating Body Wash with Hyaluronic Serum Complex
Body wash · Lists fragrance, sulfates, coconut derivatives
Olay
Intensely Hydrating Body Wash with Hyaluronic Serum Complex, Court Queen Citrus Scent
Body wash · Lists fragrance, sulfates, coconut derivatives
Olay
Intensely Hydrating Body Wash with Hyaluronic Serum Complex, Victory Vibes Vanilla Scent
Body wash · Lists fragrance, sulfates, coconut derivatives
L’Oréal
Intensif 7 jours
Lists fragrance, fragrance allergens, parabens, silicones
L’Oréal
Intensif 7 jours Lait Hydratant Apaisant au L-Bifidus
Lists fragrance, fragrance allergens, parabens, silicones
Related guides
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