Arnica cleanses the excess oil and sebum from the scalp, giving it a natural shine. By removing dirt, debris, and oil from the scalp, it also helps combat dandruff and itchiness. This also helps in preventing tangled and rough hair.
Take required amount of arnica oil (depending upon the length of your hair) onto your palm and apply it to your scalp evenly. Massage the entire scalp gently with the oil at least for 15 minutes by using your fingertips. For the best results, do it in the evening or at night right before going to bed.