Grow More Elixir is a higher concentrate of our Grow More technology that penetrates the scalp for optimal targeted hair growth. Great way to speed up your hair growth between washes. Our revolutionary leave in Elixir can be used with Watermans shampoo & conditioner. Hair growth serum is perfect for individuals that only wash their hair a few times a week, but want the results of washing hair with Waterman's hair growth products daily. Elixir is a no rinse, leave-in treatment to be applied directly to scalp for ultimate growth results.