![Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails - Hexsel - 2017 - Journal of Cosmetic Dermatology - Wiley Online Library Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails - Hexsel - 2017 - Journal of Cosmetic Dermatology - Wiley Online Library](https://onlinelibrary.wiley.com/cms/asset/42ac351f-421d-49f4-8d50-a0371e06c550/jocd12393-fig-0002-m.jpg)
Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails - Hexsel - 2017 - Journal of Cosmetic Dermatology - Wiley Online Library
![Amazon.com : NAIL-AID Collagen Base + Keratin Growth + Gel Top Coat, Clear, 3 Count : Beauty & Personal Care Amazon.com : NAIL-AID Collagen Base + Keratin Growth + Gel Top Coat, Clear, 3 Count : Beauty & Personal Care](https://m.media-amazon.com/images/I/61czcTGfMJL.jpg)
Amazon.com : NAIL-AID Collagen Base + Keratin Growth + Gel Top Coat, Clear, 3 Count : Beauty & Personal Care
![Amazon.com : NAIL-AID Collagen Power Coat, Clear, 0.55 Fluid Ounce : Nail Polish : Beauty & Personal Care Amazon.com : NAIL-AID Collagen Power Coat, Clear, 0.55 Fluid Ounce : Nail Polish : Beauty & Personal Care](https://m.media-amazon.com/images/I/5105AKbY4FL.jpg)