角素

例句：

1. 1. Thescientist discovered a new type of keratin that could be used in medicaltreatments.
   科学家发现了一种新的角蛋白，可以用于医疗治疗。
2. 2. The researcher focused onthe properties of keratin,which is found in hair and nails.
   研究者专注于角蛋白的性质，这种物质存在于头发和指甲中。
3. 3. Keratin plays acrucial role in maintaining skin health and preventingaging.
   角蛋白在保持皮肤健康和预防衰老方面起着关键作用。