biosterin

例句：

1. 1. Biosterin is essential for healthy skin and hair.
   生物素对健康的皮肤和头发至关重要。
2. 2. The supplement contains biosterin, which helps with digestion.
   这种补充含有生物素，有助于消化。
3. 3.Many people take biosterin supplements to improve their energy levels.
   许多人服用生物素补充剂以提高能量水平。