Discussion of Cosmetic Fillers by Dr. Shervin Naderi, Virginia Facial Plastic Surgeon

Dr. Shervin Naderi (Virginia facial plastic surgeon) explains categories of cosmetic injectable fillers: collagens, hyaluronic acids, and a mixed group of other fillers. He describes collagen (from cow, pig, or human) as fine-structured, useful for very fine lines and small scars, relatively painless (contains lidocaine), but short-lived (~2–3 months); human collagen requires no skin testing. Hyaluronic acids (examples: Restylane, Juvederm, Purlane, Hyloform, Captique) are the most commonly used "workhorse" fillers and last roughly 4–8 months depending on product. Other fillers include Radiesse (hydroxyapatite/bone cement; lasts ~1 year; avoid fine lines and lips due to nodule risk) and Artifil (PMMA microspheres in collagen matrix; described as the only FDA-approved permanent filler in the U.S.; typically requires 2–3 injections; avoid for fine lines and lips).
Questions this video answers
Cow, pig, and human.
No — human collagen does not require skin testing.
About two to three months at most.
Restylane, Juvederm, Purlane, Hyloform, Captique.
Approximately four to six to eight months, depending on the product.










