Biohair 5% Organica is a specialized hair treatment solution that comes in 42 vials of 2mL each. This product is formulated to help with hair regrowth and prevent hair loss through a comprehensive hair density program. The product is designed as a hair density treatment program that aims to improve hair texture and fullness. Each vial contains a 2mL dose of the active solution at 5% concentration. The package contains 42 individual vials for an extended treatment course. As this is a medical/cosmetic product, please consult with a healthcare professional for proper usage instructions and to determine if this treatment is suitable for your needs.