Refresh and revitalise your scalp with the goldwell dualsenses men's activating scalp tonic. powered by instant microfluid technology, the formula is ultra-fine and lightweight, easily and quickly absorbed by the skin to provide almost instant hydration.a unique complex containing guarana and caffeine works to stimulate the root, creating the optimum environment for growth. this helps with resilience, providing the appearance of healthier looking and stronger feeling hair.coating the scalp with nourishment, the formula offers an instant cooling effect, helping to combat any redness, itchiness or irritation. as if that wasn’t enough, the formula is also infused with an aromatic scent, perfect for the modern man.notes of blue oris, bamboo water and white amber intertwine to scent the hair with a revitalising accord. suitable for all hair types.