This is a repair serum specially designed for barrier-damaged, fragile and sensitive skin. Its core adopts a bionic lipid system composed of ceramide NP, ceramide AP, cholesterol and free fatty acids, which precisely replenishes the interstitial lipids missing from the skin barrier, helps fill the gaps in the stratum corneum, and rebuilds a complete and stable skin barrier to reduce water loss and external stimulus invasion from the root. The formula is compounded with centella asiatica extract, panthenol and allantoin to soothe redness and dry itching and relieve discomfort caused by external stimuli. Combined with sodium hyaluronate and squalane for deep hydration and moisture locking, it improves dryness, tightness and flaking caused by barrier damage. Alcohol-free, fragrance-free and pigment-free, gentle and low-irritation, suitable for various fragile skin conditions such as sensitive skin, post-procedure skin, acid-intolerant skin and seasonal redness. It has a light lotion texture, spreads smoothly and absorbs easily, non-sticky and non-clogging. It is recommended to take an appropriate amount and press gently until absorbed after toner morning and evening, and can be layered thickly during sensitive periods for repair. Long-term use strengthens the barrier, reduces recurring sensitivity, and restores the skin to a healthy and stable state.