Of course, many patients have switched to restylane and juvederm, but collagen has been FDA approved for over 30 years and still has the longest safety record of filler substance in the USA. Dr. Mark published an article about its use in a leading oculoplastic surgery journal and still has patients who prefer collagen.

Injected collagen are primarily used to improve the appearance of the skin's texture. They can help fill out deep facial wrinkles, creases and furrows, "sunken" cheeks, skin depressions and some types of scars. They can also be used to add a fuller, more sensuous look to the lips.