REVUELE THERMO-ACTIVE COMPLEX HAIR REPAIR AND GROWTH Directions: Apply one ampule with gentle massage movements to the scalp. Leave on for 30-40 minutes, then wash your hair with your every-day shampoo. For best results, use 1-2 times a week for 2-3 months. A feeling of warmth and/or tingling is normal. Caution: The product contains active ingredients; wash your hands after application. Individual intolerance to any of the ingredients is possible. Before the first application, it is recommended to perform a sensitivity test. Avoid contact with the eyes.