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
Palmolive
Hygiene - Plus (sensitive)
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, salicylic acid, coconut derivatives
Colgate
Hygiene Plus Kitchen Handwash
Lists exfoliating acid, sulfates, chemical UV filters, salicylic acid, coconut derivatives
Thrive Causemetics
Impact-FULL Smoothing Lipstick
Lip · Lists exfoliating acid
R+Co
INGENIOUS THICKENING CONDITIONER
Conditioner · Lists fragrance, fragrance allergens, exfoliating acid, chemical UV filters
L’Oréal
Innovation Fructis Après-Shampooing fortifiant
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid
NARS
Insatiable Liquid Blush
Blush · Lists exfoliating acid
Maybelline
Instant Age Rewind Color Correcting Concealer
Concealer · Lists exfoliating acid, silicones
Maybelline
Instant Age Rewind® Eraser Multi-Use Concealer
Concealer · Lists exfoliating acid, silicones
Caudalie
Instant Detox Mask
Mask · Lists fragrance allergens, drying alcohol, exfoliating acid, essential oils
Syoss
Intense Repair Tiefenspülung
Lists fragrance, fragrance allergens, drying alcohol, exfoliating acid, silicones
Dr. Dennis Gross
Intense Wrinkle Cream
Moisturizer · Lists fragrance allergens, exfoliating acid, retinoid, silicones
Sachajuan
INTENSIVE LEAVE IN CONDITIONER
Conditioner · Lists fragrance, fragrance allergens, exfoliating acid, silicones
Dermalogica
Intensive Moisture Balance
Moisturizer · Lists exfoliating acid, silicones
Nivea
Intimate Gel de toilette intime Apaisant Extrait de camomille, Panthenol & Acide lactique
Lists fragrance, exfoliating acid, sulfates, coconut derivatives
Nivea
Intimate gel de toilette intime Douceur Huile de jojoba bio, Extrait de camomille & Acide lactique
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
Wella Professionals
Invigo Nutri-Enrich Deep Nourishing Shampoo
Shampoo · Lists fragrance, fragrance allergens, exfoliating acid, sulfates, parabens, silicones, salicylic acid, coconut derivatives
Deliplus
Jabón de manos tiernos recuerdos
Lists fragrance, fragrance allergens, exfoliating acid, sulfates, coconut derivatives
Deliplus
Jabon intimo
Lists fragrance, fragrance allergens, exfoliating acid
Pacifica
Jasmine Milk Hydrating Glazing Essence
Toner · Lists fragrance, fragrance allergens, exfoliating acid, coconut derivatives
Laura Geller
Jelly Balm Smooth Shine Lip Gloss
Lip · Lists fragrance, drying alcohol, exfoliating acid, coconut derivatives
Kate Somerville
KateCeuticals Lifting Eye Cream
Eye cream · Lists exfoliating acid, coconut derivatives
Suave
Keratin Infusion Color Care Conditioner
Conditioner · Lists fragrance, exfoliating acid, silicones, chemical UV filters, formaldehyde releasers
Suave
Keratin Infusion Color Care Shampoo
Shampoo · Lists fragrance, exfoliating acid, silicones, chemical UV filters, formaldehyde releasers, coconut derivatives
Suave
Keratin Infusion Smoothing Conditioner
Conditioner · Lists fragrance, exfoliating acid, silicones, formaldehyde releasers
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