Ammonium lactate

Ammonium lactate (CAS 515-98-0), also known commercially as Lac-Hydrin, is the ammonium salt of lactic acid used in food, cosmetic, and pharmaceutical manufacturing.

Where is Ammonium lactate used?

• Pharmaceutical topicals: moisturization and mild keratolytic activity for skin health
• Prescription and OTC dry skin lotions: standard active
• Food: pH regulator and buffering agent in processed and fermented products where lactic acid alone may be too aggressive
• Personal care: body lotions, creams, and scalp treatments where controlled moisture retention is required
• Cosmetics: mild acidification and preservation-boosting systems that support antimicrobial efficacy at specific pH ranges
• It functions primarily as a pH buffer, humectant, and mild preservative.

Commercial specifications

• Aqueous solution, typically 60% concentration; other concentrations available