“I began to notice my face looked brighter and all my darker spots had disappeared within 2 weeks of using the Dose & Co. vanilla collagen protein powder daily. Dose & Co. Delivers healthier skin you can see. I haven't seen much hair growth, however my hair has become a lot more hydrated and less frizzy. I can't say any about changes to my nails. Over all Dose & Co. Vanilla Protein Powder is the most amazing product I have ever used!”