hyaluron

例句：

1. 1. Hyaluronic acid is a common ingredient in skincare products.
   透明质酸是护肤产品中常见的成分。
2. 2. The skin needs hyaluronic acid to maintain its moisture and elasticity.
   皮肤需要透明质酸来保持其水分和弹性。
3. 3. In recent years, scientists have found that hyaluronic acid can help reduce wrinklesand improve skin health.
   近年来，科学家发现透明质酸可以帮助减少皱纹并改善皮肤健康。