Ultra SK With insoluble or biosynthetic fillers it will not work: you will need the help of a plastic surgeon. Biodegradable Facial Injections Hyaluronic injections are safe and do not cause side effects, but there are contraindications to this. Hyaluronic acid is part of our body: it is part of the tissues, it combines the molecules of collagen,it retains fluid and helps maintain water balance. Facial fillings: Injections and creams Photo: Facial fillers: Injections and creams Collagen resolves more quickly, making it the first injection. There may be swelling, but soon they pass and the skin becomes firm and tense. https://americanmadepro.com/ultra-sk/