Profhilo is an injectable treatment made up of hyaluronic acid to improve skin tone, hydration, and the appearance of fine lines. Profhilo leaves the skin feeling tighter and gives a more youthful appearance. Profhilo is not designed to add volume or change the structure of the face, unlike dermal fillers. Profhilo can be used for the face, neck, and hands. After your treatment, it is common to experience: minimal bruising, minimal bleeding, and small swelling that lasts up to 24 hours.