Lactic Acid
Lactic Acid is a humectant and skin conditioning ingredient. It’s in 722 products on Poliage, most often conditioner, exfoliant and lip. Avoid lists on Poliage that include it: none.
Updated October 21, 2026
In plain English
An acid found in fermented milk and made by fermentation. Adjusts pH and, at higher levels, loosens dead surface skin.
What it does
Contains Lactic Acid: buffering
Function listed in CosIng
Contains Lactic Acid: humectant
Function listed in CosIng
Contains Lactic Acid: skin-conditioning
Function listed in CosIng
Source: CosIng, the European Commission cosmetic ingredient database, ref 34809, accessed October 22, 2026. Also listed as acidum lacticum and alpha hydroxy acid lactic.
Products that contain Lactic Acid
Unilever
Timotei Après-Shampooing aux Huiles d’Argan Bio
Lists fragrance, fragrance allergens, exfoliating acid, silicones, coconut derivatives
Unilever
Timotei Après-Shampooing Femme Nourrissant 2x300ml
Lists fragrance, fragrance allergens, exfoliating acid, coconut derivatives
Unilever
Timotei Après-Shampooing Illuminant 300ml
Lists fragrance, fragrance allergens, exfoliating acid, coconut derivatives
Unilever
Timotei Après-Shampooing Pure 300ml
Lists fragrance, fragrance allergens, exfoliating acid
Unilever
Timotei Blond Lumière Après Shampoing à l’extrait de Camomille Cheveux Blonds
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Unilever
Timotei Brun Intense Après Shampoing Enrichie à l’Extrait de Henné Cheveux Bruns
Lists fragrance, fragrance allergens, exfoliating acid, silicones, formaldehyde releasers
Unilever
Timotei Richesse Suprême Après Shampoing Femme Enrichie à l’Huile de Buriti Cheveux Très Secs
Lists fragrance, fragrance allergens, exfoliating acid, silicones, formaldehyde releasers
Original Source
Tingly Mint & Tea Tree
Lists fragrance allergens, exfoliating acid, sulfates, chemical UV filters
StriVectin
TL Advanced Tightening Neck Cream PLUS
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Deliplus
Toallitas íntimas
Lists fragrance, exfoliating acid, coconut derivatives
Medik8
Total Moisture Daily Facial Cream
Moisturizer · Lists exfoliating acid, silicones
L’Oréal
Total Repair 5 Soin démêlant instantané reconstituant Cicamide + Pro-Kératine
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, silicones
Herbal Essences
Touchable Hold Hair Styling Spray Gel
Hair styling · Lists fragrance, exfoliating acid
Kate Somerville
Travel Size ExfoliKate Cleanser Daily Foaming Wash
Lists fragrance allergens, exfoliating acid, silicones, coconut derivatives
KORRES
Travel Size Greek Yoghurt Foaming Cream Cleanser
Lists fragrance, exfoliating acid, coconut derivatives
Dermalogica
Travel Size Skin Resurfacing Cleanser
Lists fragrance allergens, exfoliating acid, essential oils, sulfates, coconut derivatives
tresemmé
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Unilever
Tresemme Botanic Shampoo
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
tresemme color revitalize
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Tresemme
Tresemme Conditioner
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Tresemme
Tresemme expert botanique coconut conditioner
Lists exfoliating acid, coconut derivatives
Unilever
Tresemmé Thermal Creations Heat Tamer Spray
Lists fragrance, exfoliating acid, silicones, chemical UV filters
Algenist
Triple Algae Eye Renewal Balm
Eye cream · Lists fragrance allergens, exfoliating acid, silicones
Renee Rouleau
Triple Berry Smoothing Peel
Exfoliant · Lists fragrance, exfoliating acid, essential oils
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