Symbios Multipeptid Densifying Serum Spray. Ccontains an innovative biotin tripeptide that combines vitamin H (biotin) with approximately 20 amino acids. Thanks to the film-forming effect of Palmaria palmata algae, the hair becomes thicker, more resistant to breakage, and prevents split ends. It improves the overall condition of the hair, giving it a shiny appearance and increasing volume. How to use: Shake before use. Spray evenly on dry or wet hair, then comb through thoroughly.