Toppik is the only brand of hair building fibers that instantly transform the appearance of fine, thin, or thinning hair. Toppik’s innovative technology uses natural keratin protein that clings to existing hair, creating the appearance of full hair, instantly. 4 easy steps: 1) Dry and style hair as usual 2) Screw the Spray Applicator onto the Hair Fibres bottle and aim at targeted area 3) Insert Hairline Optimizer into hairline and spray Hair Fibres into hair 4) Voila! Hair Fibres blend naturally into the hairline. If desired, lightly comb, brush or style your hair after application.