Toppik Hair Building Fibers in Medium Brown blend undetectably with existing hair to instantly create the appearance of naturally thick, full hair. Safe and natural way to improve the appearance of thinning hair Made from Keratin Protein, the same protein found in human hair Electrostatically charged to form a strong bond with existing hair Resists wind, rain, and perspiration Stays in place until washed out Ingredients Keratin, Ammonium chloride, Silica, Phenoxyethanol, Chlorphenesin, [+/-: Orange 4 (CI 15510), Yellow 6 (CI 15985), Red 33 (CI 17200), Yellow 5 (CI 19140), Green 3 (CI 42053), Blue 1 (CI 42090), Red 22 (CI 45380), Green 6 (CI 61565), Green 5 (CI 61570)] Suggested Use> Use on dry hair Shake liberally into thinning areas Gently pat hair to disperse Fibers Style as usual For greater durability, follow with Toppik FiberHold Spray (sold separately) Caution: For external use only. If irritation or rash appears, discontinue use. Avoid contact with eyes. Avoid inhalation.