This is a gentle retinol serum suitable for sensitive and fragile skin. Its core adopts encapsulated slow-release retinol technology to slow down retinol release, delivering anti-aging benefits while greatly reducing skin irritation, minimizing intolerance reactions such as dryness, redness and stinging, and helping sensitive skin build tolerance for anti-aging care. Retinol helps promote skin metabolism, improve surface rough dry lines, enhance skin elasticity and firmness, and improve early aging laxity and dull skin tone. The formula is compounded with multiple soothing and repairing ingredients including centella asiatica extract, ceramide, panthenol and sodium hyaluronate to simultaneously strengthen the skin barrier, replenish moisture, relieve dryness and tightness caused by retinol, and improve skin tolerance. The product has a lightweight watery texture, absorbs quickly and is non-sticky. It is recommended for night use. Start with 2-3 times a week to gradually build tolerance, then adjust frequency according to skin condition. Daily sunscreen is required during use. Long-term use can smooth fine lines, firm skin texture, brighten skin tone, while maintaining skin barrier stability and avoiding sensitive discomfort during anti-aging care.