Acetyl Hexapeptide-49 is a photoprotectic cosmetic peptide which diminishes Proteinase-Activated Rece ptor 2 (PAR-2)-induced release of pro-inflammatory mediators, attenuating neurogenic inflammation and itch response in sensitive skin. It is recognized for its potential anti-aging and neurocosmetic properties. It works by inhibiting neurotransmitter release that causes muscle contractions, thereby reducing the appearance of wrinkles and fine lines. This peptide helps relax facial muscles, promoting a smoother and more youthful complexion. Additionally, it stimulates collagen synthesis, improves skin hydration, provides brightening effect, and has anti-inflammatory, freckle and acne-removing properties.