How do I use Power Shampoo? Ben August 10, 2021 14:41 Updated Wet hair. Massage gently into your scalp for at least 1 minute daily. Rinse thoroughly. Related articles How does Power Shampoo work? Can I take the Daily Multivitamin with other supplements? What is DHT? How do I cancel my subscription? What is Good Nights sleep supplement? Comments 0 comments Please sign in to leave a comment.