LIQUID LACTIC ACID
Lactic acid is an alpha hydroxy acid (AHA) that has many uses in skincare, cosmetics, and hair.
Skincare
Exfoliation: Lactic acid removes dead skin cells, revealing brighter skin.
Hydration: Lactic acid replenishes the skin's moisture barrier.
Anti-aging: Lactic acid's antioxidant properties help prevent hyperpigmentation, lines, dryness, and oiliness.
Skin tone: Lactic acid balances skin tone.
Collagen production: Lactic acid stimulates collagen production.
Skin conditions: Lactic acid can treat moderate skin conditions like psoriasis, eczema, and acne.
Sunspots: Lactic acid can fade sunspots.
Hair
Scalp exfoliation: Lactic acid removes dirt and pollutants from the hair and scalp.
Detangling: Lactic acid makes detangling easier.
Hair follicle infections: Lactic acid's antibacterial properties help prevent infections of the hair follicles.
Hair degreasing: Lactic acid helps degrease the hair.
PH balance: Lactic acid helps maintain the PH balance of the hair.
Lactic acid is derived from the fermentation of lactose, a carbohydrate found in milk. It's also used in food and pharmaceuticals.
INCI: Lactic Acid
Typical Usage Rate: 1 - 5%
Appearance: Colorless syrupy liquid
Solubility: Soluble in water, alcohol and glycerol
5 – 20% Lactic Acid would be a good place to start, as this is milder while still having excellent skin peel affects.
Uses: Treating dry, rough & scaly skin. It may also be used for other conditions as determined by your doctor.
Lactic Acid is a strong Alpha-Hydroxy Acid and hence will have excellent exfoliant properties, although these are weaker than, but second only to, Glycolic Acid.