12 vials set of Complexe Energisant is powerful leave-In hair loss treatment. Easy to use vials provide an effective action against fighting a great number of factors contributing to hair loss. Amino acids and botanical extracts in this treatment stimulate hair growth and regeneration. Apply to clean, towel dried hair. Snap off tip of vial at white line on neck of vial and place plastic applicator over opening. Apply strip by strip to clean scalp. Do not rinse. Use three vials per week for three consecutive months for severe hair loss, or use one vial per week for moderate hair loss.