We “challenge” you to put our ingredient panel up against any other hair “growth” products out there. You’ll see ours is the most stacked. 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 conditioner is your number 1 ally in the fight to keep and grow healthy, strong hair. Formulated with Baicapil, Capixil, Rejuvasoft, 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. Hair Keep Shampoo and Conditioner laboratory formulated with one goal. Provide as many premium, active ingredients to help combat hair loss and encourage hair growth as possible.