Viviscal Hair Thickening Serum with Biotin and Keratin is a lightweight, leave-in treatment designed to create multi-dimensional density without frizz leading to thicker fuller hair. Formulated with hair-building Biotin, Keratin, marine collagen, and seaweed extract, this hair growth serum coats each strand to give you a frizz-free look that adds density without weighing hair down. Suitable for all hair types, it’s easy to apply on wet or dry hair and leaves no greasy residue. Viviscal Hair Thickening Serum has increased conditioning and strand-coating properties with added benefits such as density, softness, manageability and anti-frizz, along with a fresh new scent. Infused with a fresh, floral fragrance, it’s free from parabens, SLS, SLES, EDTA, and PEGs, making it a gentle and effective addition to any hair care routine.