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 23, 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
Olaplex
Nº.5CURL BOND SHAPER HYDRATING CURL CONDITIONER LITER
Conditioner · Lists fragrance, fragrance allergens, exfoliating acid, essential oils
Olaplex
Nº.5CURL BOND SHAPER HYDRATING CURL CONDITIONER TRAVEL SIZE
Conditioner · Lists fragrance, fragrance allergens, exfoliating acid, essential oils
Tula
Nourishing Cleanser - Prebiotic Face Wash
Cleanser · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
Unilever
Nourishing Secrets Thickening Ritual Conditioner
Lists fragrance, fragrance allergens, exfoliating acid, silicones
L’Oréal
Nude touch Pure Texture
Lists fragrance, fragrance allergens, exfoliating acid, silicones
Cosmia
Nutri gel douche soin
Lists fragrance, exfoliating acid, sulfates, coconut derivatives
alverde
Nutri-Care Spülung Bio-Mandel Bio-Argan
Lists fragrance, exfoliating acid, coconut derivatives
Unilever
Nutrición Intensiva crema de manos
Lists fragrance, fragrance allergens, exfoliating acid, parabens, silicones
Olaplex
º7 SHINE SERUM OIL MIST
Hair styling · Lists fragrance, fragrance allergens, exfoliating acid, essential oils, silicones
OSEA
Ocean Cleanser
Cleanser · Lists fragrance allergens, exfoliating acid, essential oils, coconut derivatives
Sachajuan
OCEAN MIST VOLUME CONDITIONER
Conditioner · Lists fragrance, fragrance allergens, exfoliating acid
SANEX
Odeur Protecteur
Lists fragrance, exfoliating acid, sulfates, coconut derivatives
Rimmel London
Oh My Gloss! Butter Me Up
Lip · Lists fragrance, exfoliating acid, coconut derivatives
Unilever
Oil Care Nährpflege
Lists fragrance, fragrance allergens, exfoliating acid, silicones, coconut derivatives
Henkel
Oil Intense
Lists fragrance, fragrance allergens, exfoliating acid
Buttah Skin
Oil-Free Hyaluronic Gel-Cream Moisturizer
Moisturizer · Lists exfoliating acid, silicones, salicylic acid
Dr. Dennis Gross
Oil-Free Radiant Moisturizer
Moisturizer · Lists exfoliating acid
Ombia
Ombia Med waslotion sensitief
Lists exfoliating acid, sulfates, coconut derivatives
one n only
Lists fragrance, exfoliating acid
earth balance
Original Buttery Spread
Lists fragrance, exfoliating acid
Original Source
Original Source Grüne Banane und Bambusmilch
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
Original Source
Original Source Kokosnuss & Sheabutter
Lists fragrance, exfoliating acid, sulfates, coconut derivatives
original source
Original Source Lemon and Lime Revive
Lists fragrance allergens, exfoliating acid, essential oils, sulfates, coconut derivatives
Original Source
Original Source Mango
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
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.