GROW! conditioner and shampoo for faster hair growth can help your hair to grow at the fastest rate possible. GROW! by Hair Formula 37 has the potential to accelerate your hair growth by up to 45% when used as part of a complete Hair Formula 37 program. GROW! is made by Hair Formula 37, the same people that lead the industry in faster hair growth supplements. This specially formulated shampoo for faster hair growth is highly enriched with essential amino acids and botanicals in order to transform ordinary hair to brilliant fast growing hair.