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
Jergens
Soothing Aloe Moisturizer
Body lotion · 21 oz · Lists fragrance, parabens, silicones
Caudalie
Sorbet Cream Moisturizer with Hyaluronic Acid
Moisturizer · Lists fragrance, essential oils
L’Oréal
Spa wisdom Maroc Brume dernière touche fleur d’oranger
100 mL · Label from France · Lists fragrance, fragrance allergens
Jergens
Sparkling Berry Lotion Bursts
Body lotion · Lists fragrance, fragrance allergens, silicones
Jergens
Sparkling Berry Shea Fusion
Body lotion · Lists fragrance, silicones
Dermalogica
Special Cleansing Gel
Cleanser · Lists essential oils, coconut derivatives
Sun Bum
SPF 15 Sunscreen Browning Lotion
Sunscreen · Lists fragrance, chemical UV filters, coconut derivatives
Axe
Sport Blast Re-Energising 2-in-1 Body & Hair Shower Gel
250 ml · Label from France · Lists fragrance, fragrance allergens, sulfates, silicones, formaldehyde releasers, coconut derivatives
Harry’s
Spot Correcting Gel
Serum · 0.4oz · Lists exfoliating acid, silicones, coconut derivatives
Cosmia
Spray anti-noeuds parfum cerise et fraise
0.15 l · Label from France and World · Lists fragrance, silicones
Cien
Spray Solaire Enfant FPS50+
250ml · Label from France · Lists drying alcohol, chemical UV filters
Cien
spray solare
200ml · Label from Italy · Ingredients incomplete, can’t check
Tula
Spresso Energizing Eye Balm
Eye cream · Lists exfoliating acid
Biossance
Squalane + 10% Lactic Acid Resurfacing Serum
Serum · Lists fragrance allergens, exfoliating acid, essential oils
Biossance
Squalane + Daily Mineral SPF 50 Sunscreen
Sunscreen · None of Poliage’s flag groups listed
Biossance
Squalane + Growth Factor and Peptide Firming Moisturizer
Moisturizer · None of Poliage’s flag groups listed
Biossance
Squalane + Omega Repair Cream
Moisturizer · 50ml · None of Poliage’s flag groups listed
Biossance
Squalane + Vitamin C Rose Moisturizer
Moisturizer · Lists fragrance allergens
Dermalogica
Stabilizing Repair Cream
Moisturizer · None of Poliage’s flag groups listed
Maelove
Stargaze Enhanced Retinol Serum
Serum · Lists drying alcohol, exfoliating acid, retinoid
Derma E
Stem Cell Eye Lifting Treatment
Eye cream · Lists coconut derivatives
Act+Acre
Stem Cell Thickening Foam™
Hair styling · 4 fl oz · Lists fragrance, fragrance allergens, essential oils
Palmolive
Stick à raser/Shave Stick Classic (with Palm Extract)
50 g · Label from Germany · Lists fragrance, fragrance allergens, coconut derivatives
L’Oréal
Stick Large Intraçable 72h
50 ml · Label from France · Lists fragrance, fragrance allergens
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