Since, over time, most injectable fillers are absorbed by the body, most of them only have a temporary effect. The FDA has approved only one product made from a material that remains in the body and is not absorbed. Some soft tissue fillers also contain lidocaine, which is intended to decrease pain or discomfort related to the injection.
Collagen is a type of protein that is found in skin, muscles, tendons, and bones. Sources of sterile, purified collagen used in soft tissue fillers are commonly from cow skin. With effects generally lasting up to six months, collagen fillers are the shortest lasting injectable filler materials.
The advantage of using collagen fillers lays in its safety. Since collagen is a natural substance, only three to five percent of patients show allergic reactions against collagen. If a patient is allergic or not will be determined separately before the operation.
Because of the complicated extraction process, collagen fillers usually come with a higher price than its alternatives. The relatively short effective period is another factor patients may consider before choosing collagen fillers.
Hyaluronic acid is a type of sugar that is naturally present in the human body. The highest concentrations are found in fluids in the eyes and joints.
Sources of hyaluronic acid used in fillers can be from bacteria or rooster combs. In some cases, hyaluronic acid utilised in dermal fillers is chemically modified to make it last longer in the body. The effects of this material usually last between six and twelve months.
Hyaluronic acid is a common filler material for cosmetic lip surgery. It can improve the appearance of your lips by adding volume, structure, and shape. Once injected, the gel in the filler supports and shapes the tissues of the lips.
Hyaluronic acid is a generally safe substance. Because the fillers are made from substances similar to those found in the body, they are unlikely to cause an allergic reaction.
Restylane is one of many hyaluronic acid-based products. It comes as a sterile gel consisting of non-animal, cross-linked, hyaluronic acid and is made in a laboratory.
Just like Restylane, Juvéderm is a dermal filler based on hyaluronic acid. It is considered to be the no. 1 selling collection of hyaluronic acid fillers in the United States. It is used to provide nine months to one year of correction for moderate to severe facial wrinkles and folds.
Juvéderm products come as a smooth consistency gel which is developed using the Hylacross technology to make it smoother and malleable.
For a more comfortable injection, some Juvéderm products contain small amounts of the local anaesthetic lidocaine.