Hair Shampoo enhances your hair and scalp through the HS Repair System, which combines traditional Korean herbal treatment and modern science. Wet your hair enough, using lukewarm water, take enough Hair Shampoo, and lather to create bubbles. Then, rub softly on your scalp and massage your hair with your hands. Then, rinse. Use the Scalp Repair Hair Tonic after the Scalp Repair Hair Shampoo, and it will be more effective due to their synergy effect....