Reviv™ is an advanced nighttime mouthguard crafted from 100% food-grade silicone. It promotes proper jaw alignment and posture while you sleep, helping to slim the lower face, reduce teeth clenching, and support your mewing progress. With its focus on enhancing facial symmetry, Reviv™ is an essential tool for those committed to looksmaxxing and improving their facial appearance. https://www.eng-reviv.com