Both stimulate your own collagen. They're not interchangeable. Here's how they actually differ, and how to know which fits your goals.
Both Sculptra and Radiesse fall into the biostimulator category — meaning both work by triggering your own body to produce new collagen, rather than simply occupying space the way HA filler does. Because they're grouped together in the same category, patients often assume they're functionally the same product with a different name. They're not.
Sculptra is made of poly-L-lactic acid (PLLA) and provides essentially no immediate volume — the fluid carrying it is absorbed quickly, and the collagen-building effect is what produces results over the following weeks. Radiesse is made of calcium hydroxylapatite (CaHA) suspended in a gel carrier, which does provide some visible volume immediately, in addition to stimulating collagen over time.
Patients researching this comparison online often expect one clear winner. In practice, the decision usually comes down to how much you value seeing some early visible change versus prioritizing the longest possible duration, and which area is being treated. Both are well-established, FDA-approved biostimulators with strong safety track records — the right one depends on your specific goals, not a universal ranking.
I use both products regularly, and the choice almost always comes down to what a patient tells me about their timeline expectations and the specific area we're treating — not a fixed preference for one over the other. Both are excellent tools when matched to the right situation.
What is the difference between Sculptra and Radiesse?
Both are biostimulators that trigger collagen production, but Sculptra contains poly-L-lactic acid and provides no immediate volume, while Radiesse contains calcium hydroxylapatite and provides some immediate volume on top of its collagen-stimulating effect.
Which lasts longer, Sculptra or Radiesse?
Sculptra generally has a longer track record of lasting up to two years or more. Radiesse results typically last 12 to 18 months, though this varies by treatment area and individual.
Is Radiesse faster acting than Sculptra?
Radiesse provides some visible volume immediately due to its gel carrier, in addition to its gradual collagen-stimulating effect. Sculptra provides no meaningful immediate volume and relies entirely on gradual collagen building over weeks.
Can Sculptra and Radiesse be used in the same treatment plan?
Yes, though they are typically not combined in the exact same area at the same session. Some patients use one product for certain areas and the other for different areas as part of a broader treatment plan.
Which is better for hands and body areas, Sculptra or Radiesse?
Both are used for hands and body contouring, including buttocks. The right choice depends on individual goals, timeline preferences, and the specific area being treated — best determined at consultation.
Dr. Mortazavi will assess your goals and recommend the right approach at consultation.