Agiva Hair Mask with Biotin and Collagen is the perfect care product for damaged, dull and lifeless hair. With its unique formula based on biotin and collagen, this hair mask deeply nourishes and repairs hair to make it stronger, healthier and more resistant to breakage. Biotin, also known as vitamin H, is essential for hair health because it strengthens hair follicles and stimulates hair growth. Collagen, on the other hand, is a protein that promotes hair elasticity and improves its texture and shine. This hair mask is easy to use. Simply apply the product to wet hair and leave it on for a few minutes before rinsing thoroughly with lukewarm water.