Frownies Facial Patches, designed to reduce forehead wrinkles and fine lines, act as a splint or cast, limiting facial muscle movement and enabling the smoothing of wrinkles on the forehead and between the eyes called elevens. If your expression lines on your forehead are faint you may see results quickly, but we recommend everyone start by wearing Frownies Facial Patches for 30 consecutive days (wear them at night while you sleep). Consistent use is necessary in order to retrain the facial muscles.