MILK AMINO ACIDS.

Milk amino acids function by directly contributing to the skin's Natural Moisturizing Factors (NMF), which are essential for maintaining optimal hydration and barrier integrity. These amino acids serve as metabolic building blocks, readily reused by skin cells to synthesize critical epidermal proteins such as keratins, filaggrins, and involucrins, thereby supporting healthy skin cell turnover and barrier homeostasis. Key individual amino acids, including glutamine, optimize skin hydration levels to alleviate dryness and dullness. Arginine plays a multifaceted role, enhancing microcirculation, accelerating epidermal repair, stimulating collagen production, and acting as an antioxidant by neutralizing free radicals. Glycine is fundamental for preserving skin elasticity, maintaining structural integrity, and supporting both collagen synthesis and skin regeneration. Furthermore, methionine, a sulfur-containing amino acid, serves as a precursor for cysteine, which is crucial for the formation of glutathione (GSH), a potent endogenous antioxidant that efficiently scavenges reactive oxygen species.