We “challenge” you to put our ingredient panel up against any other hair “growth” product out there. You’ll see ours is the most stacked and has the best value. Apply to head and scalp and leave in for 3-4 minutes (as long as possible really), then rinse and use Challenger Hair Keep Conditioner for maximum results. Also with Saw Palmetto, DHT Blockers, and more, this drug free shampoo is your number 1 ally in the fight to keep and grow healthy, strong hair. Formulated with Baicapil, Capixyl, HairSpa, Caffeine, Biotin, Hyaluronic Acid, Keratin, Copper Tri-Peptide 1, and more. We can’t find any other products with this all star of a line up. Laboratory formulated with one goal. Provide as many clinically tested, premium, active ingredients to help combat hair loss and encourage hair growth as possible.