Use natural vegetable oils: sweet almond oil, coconut oil, hazelnut oil, castor oil, argan oil, etc. Before shampooing, massage the scalp well to promote blood circulation (and therefore hair growth), the lengths and ends. Leave on for 1 hour under a warm, damp towel or better, overnight before washing your hair. This is one of the best tips for beautiful, healthy, nourished, and shiny hair! Oils have nourishing, moisturizing, softening, and toning properties for the hair.