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
Cosmia
Shampoing douche et bain aux mineraux marins
0.75 l · Label from France and World · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Cosmia
Shampoing douche fresh 3 in 1
0.25 l · Label from France and World · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Cosmia
Shampoing douche mineraux marins
0.25 l · Label from France and World · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Cosmia
Shampoing douche monoï
0.25 l · Label from France and World · Lists fragrance, sulfates, coconut derivatives
Auchan
Shampoing extra doux tilleul et thé vert
300mL · Label from France · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
L’Oréal
Shampoing illuminant camomille
300 ml · Label from France · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
L’Oréal
shampoing illuminant, camomille et miel de fleurs
400 ml · Label from France · Ingredients incomplete, can’t check
Clear
shampoo
1l · Label from Jordan and Morocco · Lists fragrance, fragrance allergens, sulfates, silicones, formaldehyde releasers, salicylic acid, coconut derivatives
Vanicream
Shampoo
Shampoo · 12 oz · Lists coconut derivatives
PRAVANA
Shampoo
Shampoo · Lists fragrance, fragrance allergens, exfoliating acid, coconut derivatives
Deliplus
Shampoo
1 litro · Label from Morocco and Spain · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Ogx Argan Oil Of Morocco
Shampoo
Ingredients incomplete, can’t check
Cosmia
Shampoo bath and shower gel 3 in 1 monoï
0.75 l · Label from France and World · Lists fragrance, sulfates, coconut derivatives
Deliplus
shampoo color intense
Label from Spain · Lists fragrance, fragrance allergens, sulfates, silicones, coconut derivatives
Tresemme
Shampoo Detox Capilar
500ml · Label from Argentina · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Lux
Shampoo Dimension by Lux Olio di Avocado
250 ml · Label from Italy · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
Dove
Shampoo Dove Hidratação + Vitaminas A e E 400ml
400 ml · Label from Brazil · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, silicones, chemical UV filters, formaldehyde releasers, coconut derivatives
Dove
Shampoo Dove Men +Care Limpeza Refrescante com 400ml
400 ml · Label from Brazil · Lists fragrance, fragrance allergens, sulfates, formaldehyde releasers, coconut derivatives
L’Oréal
Shampoo Elseve L’Oréal Hydra Detox 48h Anti-Caspa com 200ml
250 ml · Label from Brazil · Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, sulfates, salicylic acid, coconut derivatives
Sedal
Shampoo Hialurónico + Vitamina A
190 ml · Label from Bolivia and Chile · Lists fragrance, fragrance allergens, retinoid, sulfates, silicones, coconut derivatives
L’Oréal
Shampoo idratante Acqua di cocco Ultra dolce
250 ml · Label from Italy · Lists fragrance, fragrance allergens, sulfates, coconut derivatives
L’Oréal
Shampoo L’Oréal Paris Elseve Liso dos Sonhos 200ml
200 ml · Label from Brazil · Ingredients incomplete, can’t check
Dove
Shampoo ritual de crecimiento
Label from Spain · Ingredients incomplete, can’t check
L’Oréal
Shampoo Ultra Dolce Rivitalizzante 5 piante
250 ml · Label from Italy · Lists fragrance, fragrance allergens, drying alcohol, sulfates, coconut derivatives
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