Lbiotica Biovax A + E 15 ML HAIR STRENGTHENING SERUM. This leave-in hair care provides intense hydration and nourishment. It helps smooth and restore hair's natural shine and structural integrity, promoting regeneration and easier detangling. The serum has regenerative effects, gives an appealing shine, and makes hair velvety smooth. It prevents split ends and leaves hair beautifully shiny and full of vitality. How to use: Apply to towel-dried hair. Do not rinse.