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 22, 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
TRESemmé
Keratin Repair Bond Plex Conditioner
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Cien
Kids after sun lotion
Lists drying alcohol, exfoliating acid
First Aid Beauty
KP Bump Eraser Body Scrub 10% AHA
Exfoliant · Lists exfoliating acid, silicones, coconut derivatives
First Aid Beauty
KP Bump Eraser Body Scrub 10% AHA Fresh Peach
Exfoliant · Lists exfoliating acid, silicones, coconut derivatives
First Aid Beauty
KP Bump Eraser Body Scrub 10% AHA Toasted Coconut
Exfoliant · Lists exfoliating acid, silicones, coconut derivatives
The Ordinary
Lactic Acid 10% + HA
Exfoliant · Lists exfoliating acid
The Ordinary
Lactic Acid 5% + HA
Exfoliant · Lists exfoliating acid
Yves rocher
Lait hydratant fermeté 2 en 1
Lists fragrance, fragrance allergens, exfoliating acid, silicones, salicylic acid, coconut derivatives
Unilever
Lait pour le corps Deep Care Complex
Lists exfoliating acid, parabens, silicones
Unilever
Lait pour le corps nutrition essentielle
Lists fragrance, fragrance allergens, exfoliating acid, parabens, silicones, coconut derivatives
PRAVANA
Leave-In Treatment
Conditioner · Lists fragrance, fragrance allergens, exfoliating acid, silicones, chemical UV filters
Nudestix
Lemon-Aid Detox & Glow Micro-Peel
Exfoliant · Lists fragrance allergens, exfoliating acid, essential oils
Ole Henriksen
Lemonade Smoothing Scrub
Exfoliant · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, coconut derivatives
Unilever
Lifebuoy Expert Gel Lavant Mains Pompe 250ml
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
Unilever
Lifebuoy Gel Lavant Mains Antibactérien Eco Recharge 500ml
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
Dr. Dennis Gross
Lift + Repair Eye Mask
Mask · Lists exfoliating acid
California Naturals
Light & Gentle Anti-Irritation Sensitive Shampoo
Lists exfoliating acid, coconut derivatives
TRESemmé
Light Moisture Conditioner Pro Pure
Lists fragrance, fragrance allergens, exfoliating acid
Wonderskin
Limited Edition Wonder Blading All-Day Lip Stain – Headliner
Lip · Lists fragrance, exfoliating acid
Cosmia
Lingettes intimes
Lists exfoliating acid, coconut derivatives
Cosmia
Lingettes intimes apaisantes à l’extrait d’hamamélis
Lists fragrance, exfoliating acid, coconut derivatives
Rose Inc
Lip Cream Weightless Matte Color
Lip · Lists fragrance, fragrance allergens, exfoliating acid, silicones, coconut derivatives
Thrive Causemetics
Lip Filler Long-Wearing + Plumping Lip Liner
Lip · Lists exfoliating acid, silicones
Thrive Causemetics
Lip Mate High-Shine Reviving Lip Topper
Lip · Lists fragrance, fragrance allergens, exfoliating acid, essential oils
Related guides
Pairs and situations that regulators and DermNet flag
26 statements from the FDA, NHS and DermNet NZ about ingredients used together or in certain situations, each attributed, with no added advice.
Retinoids, AHAs and salicylic acid: what sources say
What DermNet NZ and the FDA say about retinoids, alpha hydroxy acids and salicylic acid: sun sensitivity, irritation, pregnancy and using them together.