Real collagen stimulators may provide some initial filling effect due to the fluid that surrounds the microscopic particles in the product (these prompt collagen to be made). “During the first 24 hours after injections, the fluid gets absorbed and the fullness that you initially see may start to dissipate. It takes time to stimulate new collagen for the full effects to show in the face, which can take a few months and a few treatment sessions.

This is not true. Although hyaluronic acid wasn’t formulated to do so, science has proven they can create collagen. But many doctors agree that the amount of collagen made is not as much of collagen made is not as you can expect from products that are specifically formulated to create collagen. The function of collagen-stimulating fillers is to create collagen. Hyaluronic acid fillers add fullness. “With a hyaluronic acid filler, the collagen effect is modest when compared to a collagen stimulator,” says Dr. Calkin.

Both Radiesse and Sculptra Aesthetic have specific indications for where on the face they should be used. Unlike hyaluronic acid fillers, they should never be used in the lips or in small lines around the lips. “The only places where these should be injected are in the jowls, nasolabial folds, marionette lines and chin wrinkles. These products are not line fillers but they do restore collagen and add volume. On occasion, when used in inappropriate places, lumps and bumps can form, which has been described as being similar to the pain associated with cystic acne.