This set contains pre-treatment I and post-treatment II. Main ingredient of pre-treatment I is hydrolyzed collagen, hyaluronic acid,betaine and matrine. The combination of collagen and hyaluronic acid could promote the hydratability and enhance skin tolerance to prevent compication. Betaine and matrine mainly used for anti inflammation. Main ingredient of post-treatment II is EGF, oligopeptides-1,oligopeptides-2, oligopeptides-5,ceramide and hyaluronic acid. Three oligopeptides contribute the rapid healing of wound to prevent scar. EGF is to promote cell regeneration and repairing. Ceramide and hyaluronic acid is to enhance skin barrier function, highly moisturize, protect sebum membrane and anti aging. Post-treatment II used for postoperative skin to repair wound surface ,reduce redness, itchy,reduce secretion of inflammatory mediators and effectively lock water, prevent pigment.