Dermal filler technology explained
The introduction of Hyaluronic acid (HA) has revolutionized the world of dermal fillers. In the United States, HA has become the mainstay for facial rejuvenation and contouring. Dermal fillers differ in longevity, source, depth of injection, and cost. Advancements in technology have made the availability of safer and longer-lasting dermal fillers possible.
NASHA stands for non-animal stabilized hyaluronic acid. Restylane is an example of a dermal filler made with NASHA particles.
Homogenized products have more consistent injection properties, but their particles are less consistent in size. Juvederm is an example of a homogenized dermal filler.
Cohesive Polydensified Matrix improves the lifting ability of the filler. It is used in Belotero dermal fillers.
Cross-linking is an important process in stabilizing HA for dermal injection. To prevent rapid degradation of the dermal filler gel, manufacturers mix cross-linking agents into the HA preparation. The most commonly used cross-linkers are BDDE (1,4-butanediol diglycidyl ether) and DVS (divinyl sulfone).
Is one filler better than another?
There is really no such thing as the “best” dermal filler. An ideal dermal filler is safe and gives consistent results. Results also depend on the administrator’s technique, experience, and expertise, and the patient’s requirements and risk predisposition. Cosmetic injectables are formulated specifically to target certain concerns. If you wish to augment your lip size, you won’t receive treatment with a filler meant to restore large amounts of volume to areas like the cheeks.
What dermal filler do I need?
It is important to remain updated on the evolving and expanding indications and recommendations of dermal filler usage.
As you age, your filler needs will likely change. You may have started with a mesotherapy injectable, and now need something for more prominent lines. Poly-L-lactic acid and calcium hydroxylapatite fillers are generally used for volume restoration. Hyaluronic acid-based fillers are suitable for rehydrating the skin and smoothing fine to deep lines and wrinkles.