Sodium Hydroxide
Sodium Hydroxide is a buffering and denaturant ingredient. It’s in 2,157 products on Poliage, most often body lotion, moisturizer and body wash. Avoid lists on Poliage that include it: none.
Updated October 26, 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
Rimmel London
SCANDALEYES RETRO GLAM MASCARA
Mascara · Lists retinoid
Rimmel London
ScandalEyes Retro Glam Waterproof Mascara
Mascara · Lists retinoid
Rimmel London
SCANDALEYES WOW WINGS MASCARA
Mascara · Lists retinoid
Rimmel London
SCANDALEYES WOW WINGS WATERPROOF MASCARA
Mascara · Lists retinoid
Schmidt’s
Schmidt’s Déodorant Bille Bergamote + Citron Vert 50ml
50 ml · Label from France · Lists fragrance allergens, essential oils
Schmidt’s
Schmidt’s Déodorant Bille Charbon + Magnésium 50ml
50 ml · Label from France · Lists fragrance, fragrance allergens
Schmidt’s
Schmidt’s Déodorant Bille Rose + Vanille 50ml
50 ml · Label from France · Lists fragrance, fragrance allergens
Balea
Schönheitsgeheimnisse Pflegende Duschcreme Goldene Milch
250 ml · Label from Germany · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
Nivea Sun
Schutz & Pflege Sonnenspray 30
200 ml · Label from Germany · Lists fragrance, fragrance allergens, drying alcohol, chemical UV filters
Brickell Men’s Products
Sculpting Hair Glue for Men
Hair styling · 2 oz · None of Poliage’s flag groups listed
Moroccanoil
Sculpting Pomade
Hair styling · 2.5 oz · Lists fragrance, fragrance allergens, essential oils, coconut derivatives
Love Beauty and Planet
Sea Salt & Bergamot Shampoo
400 mL · Label from Indonesia and Malaysia · Lists fragrance, essential oils, coconut derivatives
The Body Shop
Seaweed Oil-Control Exfoliator
Exfoliant · Lists fragrance, fragrance allergens
Head & Shoulders
Seidig & Glänzend
300 ml · Label from France · Lists fragrance, fragrance allergens, sulfates, silicones, coconut derivatives
Alverde
Sensitiv After Shave Balsam
75 ml · Label from Germany · Lists fragrance, fragrance allergens, drying alcohol
Head & Shoulders
Sensitive
280 ml · Label from France · Lists fragrance allergens, drying alcohol, sulfates, silicones, coconut derivatives
Deliplus
Sensitive & Encias-Gengivas
500ml · Label from Andorra and Spain · Ingredients incomplete, can’t check
Dove
Sensitive Body Lotion
Body lotion · 250 ml · Label from Germany · None of Poliage’s flag groups listed
Signal
Sensitive Expert avec Minéral HAP
75 ml · Label from France · Lists fragrance, fragrance allergens, sulfates
Equate
Sensitive Extra Whitening
4 oz · Lists fragrance, coconut derivatives
Nivea
Sensitive Immediate Peotect, SPF30
200 ml · Label from Norway · Lists drying alcohol, chemical UV filters
Nivea
Sensitive Immediate Protect+, SPF30
200 ml · Label from Norway · Lists drying alcohol, chemical UV filters
Head & Shoulders
Sensitive Kopfhaut
Label from Germany · Lists fragrance, fragrance allergens, sulfates, salicylic acid, coconut derivatives
Mentadent
Sensitive mineral active Protezione gengive by Mentadent
75 ml · Label from Italy · Lists fragrance, fragrance allergens, sulfates
Related guides
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