Cinchskin.com appears to be a legitimate website. The site offers a range of clinically proven skincare products designed to simplify skincare routines and improve skin health. The products are well-reviewed and include ingredients that are known for their efficacy, such as Pentavitin and Superox-C. The company also has a presence on social media platforms like Facebook, where they engage with their community and provide updates on their products. Additionally, the website features detailed descriptions of their products, including the benefits and ingredients, which adds to their credibility.