Henna powder with water, make a paste like honey. Keep the paste for 45-60 minutes or more and apply the paste gently on hair on fraction of hair from roots to the desired length. For dark and rich color cover head after applying henna with a plastic cap. Keep it for 45-90 minutes and rinse the henna from hair with normal water. Do not use shampoo. Dry your hair .The color will improve naturally in 1-2 days.