retinol

例句：

1. 1.Vitamin A is essential for healthy skin and vision.
   维生素A对健康的皮肤和视力至关重要。
2. 2.The supplement contains retinol, which helps to improve skin texture.
   这种补充剂含有视黄醇，有助于改善皮肤质地。
3. 3.Retinol is often used in skincare products to promote cell growth and repair.
   视黄醇常用于护肤产品中，以促进细胞生长和修复。