Sodium Hydroxide
Sodium Hydroxide is a buffering and denaturant ingredient. It’s in 2,130 products on Poliage, most often body lotion, moisturizer and body wash. Avoid lists on Poliage that include it: none.
Updated October 25, 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
L’Oreal replumping purifying gel wash
Ingredients incomplete, can’t check
Henkel
La Toja Gel de ducha Aloe avera
600ml · Label from Spain · Ingredients incomplete, can’t check
The Ordinary
Lactic Acid 10% + HA
Exfoliant · Lists exfoliating acid
The Ordinary
Lactic Acid 5% + HA
Exfoliant · Lists exfoliating acid
The Ordinary
Lacto-PDRN* 4% + B9 Eye Cream
Eye cream · None of Poliage’s flag groups listed
Null
Lait corps
Label from France · Ingredients incomplete, can’t check
Yves Rocher
Lait Corps Énergisant Framboise Menthe Poivrée
50 ml · Label from France · Lists fragrance, fragrance allergens, silicones, coconut derivatives
Cosmia
Lait corps hydratant nourrissant
0.25 l · Label from France, Portugal and World · Lists fragrance, silicones
Auchan
Lait corps hydratant réparateur
0.25 l · Label from France, Spain and World · Lists fragrance, silicones
Neutrogena
Lait corps nutrition intense Nordic Berry
250 ml · Label from France · Lists fragrance, silicones
Cora
Lait de douche fleur d’oranger
750 ml · Label from France · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Cosmia
Lait démaquillant
0.25 l · Label from France and World · None of Poliage’s flag groups listed
L’Oréal
Lait Démaquillant végétal hydratant à l’Extrait d’Aloe
Label from France · Lists fragrance, drying alcohol, exfoliating acid, salicylic acid
Nivea
Lait fluide hydratation express
250 ml · Label from France · Lists fragrance, fragrance allergens, drying alcohol, sulfates, silicones
Nivea
Lait hydratant douceur
250 ml · Label from France · Lists fragrance, fragrance allergens, sulfates, silicones
Nivea
Lait hydratant Réparateur & Soin
250 ml · Label from France and Morocco · Lists fragrance, fragrance allergens, sulfates, silicones
L’Oréal
Lait nourrissant Corps Olive mythique
250 ml · Label from France · Lists fragrance, fragrance allergens, silicones
Yves Rocher
Lait réparateur au beurre de karité (peaux extra sèches)
390 ml · Label from Belgium · Lists fragrance, silicones, coconut derivatives
Yves Rocher
lait réparateur beurre de karité peaux extra sèches
200 ml · Label from France · Lists fragrance, silicones, coconut derivatives
Les plaisirs nature
Lait velouté Huile d’olive AOC Provence
400 ml · Label from France · Lists fragrance, fragrance allergens, silicones, coconut derivatives
Drunk Elephant
Lala Retro Nourishing Whipped Refillable Moisturizer
Moisturizer · None of Poliage’s flag groups listed
Herbivore
LAPIS Blue Tansy Cleansing Gel Body Wash
Body wash · 250 mL · Lists drying alcohol, essential oils, coconut derivatives
Nudestix
Lash Lengthening Mascara
Mascara · Lists drying alcohol
bareMinerals
LASHTOPIA Mega Volume Mineral-Based Mascara
Mascara · Lists fragrance allergens
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