Lactic acid powder is the solid (powdered) form of lactic acid, usually made by spray-drying lactic acid onto a carrier like calcium lactate or sodium lactate. Regular lactic acid is a liquid, so the powder form is mainly used where dry handling, better stability, or easier transport is needed. It’s naturally derived through fermentation of sugars (corn, beet, sugarcane) using friendly bacteria—so it’s often bio-based and biodegradable.
Skincare & Cosmetics
Since you work with formulations, this one’s especially relevant:
Gentle exfoliant (AHA) – removes dead skin cells
Skin-brightening & smoothing
Improves hydration (humectant effect)
pH adjuster in creams, serums, cleansers
Helps with acne-prone, dull, or rough skin
Used in chemical peels (mild to medium strength)
In cosmetic labs, liquid lactic acid is more common, but powder is useful for dry blends, masks, and powdered cleansers.
Soaps & Cleansers
Improves bar soap hardness
Reduces soap scum
Helps create a smoother, creamier lather
Used in syndet bars and facial cleansers
Food Industry
Acidity regulator & preservative
Enhances flavor in dairy, bakery, pickles
Prevents microbial growth
Used in sports supplements for muscle recovery
Pharmaceutical & Medical
Used in controlled-release drug formulations
Component in biodegradable polymers (PLA)
Helps regulate pH in oral & topical medicines
Agriculture & Animal Feed
Improves gut health in livestock
Acts as a natural preservative
Supports nutrient absorption
Important Formulation Notes
Always dissolve fully in water before adding to cosmetic formulas
Typical cosmetic use: 0.1–5% (depends on product type)
Final product pH should be 3.5–5.5 for skin safety
Patch testing is essential.
