Sodium Hydroxide
Sodium Hydroxide is a buffering and denaturant ingredient. It’s in 2,159 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
Oars + Alps
Luxury Body Wash - Alpine Tea Tree
Body wash · 13.5 Fl. Oz. · Lists fragrance, coconut derivatives
Oars + Alps
Luxury Body Wash - Aspen Air
Body wash · 13.5 Fl. Oz. · Lists fragrance, coconut derivatives
Oars + Alps
Luxury Body Wash - California Coast
Body wash · 13.5 Fl. Oz. · Lists fragrance, coconut derivatives
Oars + Alps
Luxury Body Wash - Fresh Ocean Splash
Body wash · 13.5 Fl. Oz. · Lists fragrance, coconut derivatives
Oars + Alps
Luxury Body Wash - Mandarin Woods
Body wash · 13.5 Fl. Oz. · Lists fragrance, coconut derivatives
Henkel
Magno classic
125 g · Label from Spain · Lists fragrance, fragrance allergens
Henkel
magno rosé ÉLÉGANT
550ml · Label from outside the U.S. · Ingredients incomplete, can’t check
Black Girl Sunscreen
Make It Hybrid SPF 50 Sunscreen
Sunscreen · Lists essential oils, chemical UV filters
alverde
Mamaglück Körperbutter Wilde Malve
200 ml · Label from Austria · Lists fragrance, fragrance allergens, drying alcohol
Allies of Skin
Mandelic Pigmentation Corrector Night Serum
Serum · Lists exfoliating acid, salicylic acid
Mario Badescu
Mario Badescu Caffeine Eye Cream, Hydrates, Revitalizes, Reduces Wrinkles, Dark Circles And Puffiness
15 ml · Label from Brazil · Lists parabens, silicones, formaldehyde releasers
L’Oréal
Mascarilla de pelo protectora Color Vive
300 ml · Label from Spain · Lists coconut derivatives
Deliplus
Mascarilla Plex Repair
Label from Portugal · Ingredients incomplete, can’t check
Cosmia
Masque extra doux
0.3 l · Label from France and World · Lists fragrance, fragrance allergens, exfoliating acid, silicones
l-oreal
Masque nourrissant hair food banane
Label from France · Ingredients incomplete, can’t check
Cosmia
Masque nutritif technique color
0.3 l · Label from France and World · Lists fragrance, fragrance allergens, exfoliating acid, silicones, chemical UV filters
Cosmia
Masque nutritif technique force
0.3 l · Label from France and World · Lists fragrance, fragrance allergens
Cosmia
Masque nutritif technique lisse
0.3 l · Label from France and World · Lists fragrance, fragrance allergens
Cosmia
Masque nutritif technique repair
0.3 l · Label from France and World · Lists fragrance, fragrance allergens
Cosmia
Masque nutritif technique violet
0.3 l · Label from France and World · Lists fragrance, fragrance allergens
Vichy
Masque Peel Double Éclat
75ml · Label from France · Lists fragrance, drying alcohol, silicones
Makeup by Mario
Master Mascara
Mascara · None of Poliage’s flag groups listed
Pacifica
Matcha Tea Energizing Barrier Essence
Toner · Lists fragrance allergens
matrix shampoo
Ingredients incomplete, can’t check
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