Sodium Hydroxide
Sodium Hydroxide is a buffering and denaturant ingredient. It’s in 2,161 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
Nivea
Nivea Sun protect and moisture
Label from United Kingdom · Lists fragrance, fragrance allergens, drying alcohol, chemical UV filters
Nivea
NIVEA Verfrissende Reinigingsmelk
200ml - Droge tot normale huid · Label from Netherlands · Lists fragrance, fragrance allergens, sulfates, parabens
Nivea
NIVEA Waterproof Oogmake-Up Remover
125 ml · Label from Netherlands · Lists parabens
Nizoral
Nizoral Anti-Dandruff Shampoo
60ml · Label from Ghana · Ingredients incomplete, can’t check
Olaplex
Nº.4 BOND MAINTENANCE STRENGTHENING SHAMPOO FULL SIZE
Shampoo · 250 mL · Lists fragrance, fragrance allergens, silicones, coconut derivatives
Olaplex
Nº.4 BOND MAINTENANCE STRENGTHENING SHAMPOO JUMBO
Shampoo · 525 mL · Lists fragrance, fragrance allergens, essential oils, silicones, coconut derivatives
Olaplex
Nº.4 BOND MAINTENANCE STRENGTHENING SHAMPOO LITER
Shampoo · 1000 mL · Lists fragrance, fragrance allergens, silicones, coconut derivatives
Olaplex
Nº.4 BOND MAINTENANCE STRENGTHENING SHAMPOO TRAVEL SIZE
Shampoo · 100 mL · Lists fragrance, fragrance allergens, silicones, coconut derivatives
Olaplex
Nº.4CURL BOND SHAPER HYDRATING CURL SHAMPOO FULL SIZE
Shampoo · 250 mL · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, coconut derivatives
Olaplex
Nº.4CURL BOND SHAPER HYDRATING CURL SHAMPOO LITER
Shampoo · 1000 mL · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, coconut derivatives
Olaplex
Nº.4CURL BOND SHAPER HYDRATING CURL SHAMPOO TRAVEL SIZE
Shampoo · 100 mL · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, coconut derivatives
Olaplex
Nº.4FINE BOND MAINTENANCE VOLUMIZING SHAMPOO FULL SIZE
Shampoo · 250 mL · Lists fragrance, fragrance allergens, coconut derivatives
Olaplex
Nº.4FINE BOND MAINTENANCE VOLUMIZING SHAMPOO JUMBO
Shampoo · 525 mL · Lists fragrance, fragrance allergens, essential oils, coconut derivatives
Olaplex
Nº.4FINE BOND MAINTENANCE VOLUMIZING SHAMPOO LITER
Shampoo · 1000 mL · Lists fragrance, fragrance allergens, coconut derivatives
Olaplex
Nº.4FINE BOND MAINTENANCE VOLUMIZING SHAMPOO TRAVEL SIZE
Shampoo · 100 mL · Lists fragrance, fragrance allergens, essential oils, coconut derivatives
Olaplex
Nº.5CURL BOND SHAPER HYDRATING CURL CONDITIONER FULL SIZE
Conditioner · 250 mL · Lists fragrance, fragrance allergens, exfoliating acid, essential oils
Olaplex
Nº.5CURL BOND SHAPER HYDRATING CURL CONDITIONER LITER
Conditioner · 1000 mL · Lists fragrance, fragrance allergens, exfoliating acid, essential oils
Olaplex
Nº.5CURL BOND SHAPER HYDRATING CURL CONDITIONER TRAVEL SIZE
Conditioner · 100 mL · Lists fragrance, fragrance allergens, exfoliating acid, essential oils
Olaplex
Nº.5FINE BOND MAINTENANCE VOLUMIZING CONDITIONER FULL SIZE
Conditioner · 250 mL · Lists fragrance, fragrance allergens, drying alcohol, coconut derivatives
Olaplex
Nº.5FINE BOND MAINTENANCE VOLUMIZING CONDITIONER JUMBO
Conditioner · 525 mL · Lists fragrance, fragrance allergens, drying alcohol, essential oils, coconut derivatives
Olaplex
Nº.5FINE BOND MAINTENANCE VOLUMIZING CONDITIONER LITER
Conditioner · 1000 mL · Lists fragrance, fragrance allergens, drying alcohol, coconut derivatives
Olaplex
Nº.5FINE BOND MAINTENANCE VOLUMIZING CONDITIONER TRAVEL SIZE
Conditioner · 100 mL · Lists fragrance, fragrance allergens, drying alcohol, essential oils, coconut derivatives
Juliette Has a Gun
Not a Hair and Body Mist
Fragrance · 2.5fl.oz · Lists fragrance, fragrance allergens
NARS
Notorious Mascara
Mascara · None of Poliage’s flag groups listed
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