Acetyl tetrapeptide-5 is known as eye peptide and eye silk peptide. The molecular weight of acetyltetrapeptide-5 is 492.5 and the amino acid sequence is Ac- βAla-His-Ser-His-OH, the molecular formula is C20H28N8O7. The influence of saccharification in the body and the increase of ocular vascular osmotic pressure will make the eye skin form dark circles and edema. Some studies have proved that acetyltetrapeptide-5 can reduce edema by changing the microcirculation of regional skin and the osmotic pressure of liquid, so as to effectively eliminate edema, eye bags and dark circles. Used to prepare a firming eye cream. The firening eye cream contains acetyl-tetrapeptide-5, purslane extract, panthenol, vitamin E, ginger root extract, red myrrh alcohol, coenzyme Q10, sodium hyaluronate and other highly effective nutrients, which can improve skin elasticity by promoting cell differentiation and collagen synthesis. But also can promote the skin cuticle metabolism, make the skin more soft and smooth, and effectively promote skin regeneration, to reduce wrinkles, firming the skin effect; At the same time, polysiloxane-11 can instantly smooth the fine lines of the eye skin and tighten the skin around the eye.