HYDRO-STAR 32 CT BLACK. Benefits: Hydro-Stars are made with 100% hydrocolloid to help reduce the appearance of inflammation and shrink spots overnight.. Hydro-Stars are perfect for all spots, especially juicy ones like surface-level pimples and whiteheads. Thanks to hydrocolloid's gentle properties, wearing Hydro-Stars just for fun is also safe (and encouraged!).. These stars protect your spots from outside bacteria and serve as a gentle reminder to avoid skin picking. Dermatologist tested, and safe for every skin type, including sensitive.. Features: Perfectly shaped to grip the contours of the face, Hydro-Stars are designed to really stick and keep you feeling cute while caring for your skin.. Their little arms are great for reaching spots in tight or awkward spaces, like the corner of your nose or side of your lip.. Take your stars everywhere you go with Big Yellow, a reusable, mirrored compact (sold separately) that holds your patches for easy application and storage. Key Ingredients: Hydrocolloid is clinically proven to improve the appearance of pimples overnight: It draws out fluid, which can help soothe redness and inflammation..