Ayurveda can provide us with powerful, natural medicines that improve our natural ability to grow hair while causing no negative side effects. Ayurveda also promotes holistic health practices. Massaging your scalp gently helps rejuvenate your hair follicles by increasing blood circulation. This, in turn, helps promote growth and enhance hair volume. Let the oil sit on for at least two hours before rinsing clean with a sulfate-free, natural shampoo.