Sculptra vs. RADIESSE: Which Biostimulator Fits You?
The short answer
Sculptra® and RADIESSE® are both biostimulators, but they work differently. Sculptra is poly-L-lactic acid, and its maker describes a gradual improvement over several weeks, typically across three sessions. RADIESSE is calcium hydroxylapatite in a gel: it adds volume where it is placed, and we use it for the backs of the hands, the décolletage and selected areas of the face.
Two names come up whenever someone asks us for a gradual, natural-looking alternative to filler: Sculptra® and RADIESSE®. Both are biostimulators, both are on our menu, and both start with a consultation. After that they differ: they are made of different things, they behave differently in the weeks after a visit, and we use them for different areas.
The clinical detail below comes from each product's FDA labeling and the studies behind it, all listed at the end. The prices come from our menu.
What are Sculptra and RADIESSE made of?
Sculptra is made of very small particles of poly-L-lactic acid, a synthetic material the body breaks down over time. It arrives as a powder and is mixed with sterile water before it is used.
RADIESSE is made of tiny calcium hydroxylapatite microspheres held in a water-based gel. Neither one is a hyaluronic-acid filler, and that affects what can be undone if you change your mind.
How does each one work, and when do you see a change?
Sculptra's labeling describes it as initially filling with small particles; as those particles break down, the body may produce new collagen. Its maker describes the result as a gradual improvement over several weeks rather than a change you see on the day.
That has one practical consequence worth knowing in advance. Right after a session the area can look fuller, from the injections and the water Sculptra is mixed with. That fullness usually settles within several hours to a few days, and the area may then look much as it did before. That early look is not the result, and we will tell you so at the visit.
RADIESSE is different. Its labeling describes it as adding volume where it is placed, and the improvement can keep developing over the following weeks. Small biopsy studies have also found new collagen forming around the microspheres in the months after treatment.
Where do we use Sculptra, and where do we use RADIESSE?
On our menu, Sculptra is a collagen stimulator for gradual, overall volume improvement and skin quality. RADIESSE is the one we use for the backs of the hands, the décolletage and selected areas of the face.
RADIESSE's FDA labeling covers moderate to severe facial wrinkles and folds, volume loss in the backs of the hands and, since March 2026, wrinkles of the décolletage, where it is used diluted. Which areas suit you, and which product suits each area, is a decision we make with you in person.
How many sessions does each one take?
Sculptra is planned as a short series. Its labeling describes one to four sessions, typically three, spaced three to four weeks apart depending on the area. That spacing is part of why the change is gradual: each session adds to the last.
RADIESSE has no fixed number. Its labeling leaves the number of sessions to you and your provider, and says a touch-up is sometimes part of reaching the result you want. We map the plan, and the price, before anything is booked.
If you have a date in mind, a wedding or a trip, bring it to the consultation. A gradual treatment is easier to plan backwards from a date than to rush, so we build the calendar with you.
Sculptra and RADIESSE, side by side
Here is the comparison in one place.
| Aspect | Sculptra® | RADIESSE® |
|---|---|---|
| Made of | Poly-L-lactic acid particles, mixed with sterile water | Calcium hydroxylapatite microspheres in a gel |
| How the change arrives | Gradually over several weeks, as the body may produce new collagen | Volume where it is placed, with improvement that can keep developing over the following weeks |
| Right afterwards | Some fullness that usually settles within hours to a few days | Some swelling is common; the area may feel firm to the touch |
| Sessions | Typically three, up to four, three to four weeks apart | Planned with you; a touch-up is sometimes part of it |
| What we use it for | Gradual, overall volume and skin quality on the face | Backs of the hands, décolletage, selected areas of the face |
| Lips | No | No |
| Can it be dissolved like hyaluronic-acid filler? | No | No |
| Price | $800 a vial; your total is set at your consultation | $800 a syringe; your total is set at your consultation |
Which one is right for you?
We look before we recommend. The consultation is free, and it is where we talk through what you would like to change, which areas we would treat, which product fits each one and what the plan costs. Sometimes the answer is Sculptra, sometimes RADIESSE, sometimes both for different areas, and sometimes a hyaluronic-acid filler is the better tool for what you want.
Come for the consultation, decide on treatment after.
Questions
Frequently asked questions
Is Sculptra a filler?
Not in the usual sense. Sculptra is poly-L-lactic acid, and its labeling describes it as initially filling with small particles that the body breaks down, after which the body may produce new collagen. Its maker describes a gradual improvement over several weeks, which is why we call it a biostimulator.
Can Sculptra or RADIESSE be used in the lips?
No. Sculptra's labeling says it should not be injected into the red part of the lips, and RADIESSE's labeling says its safety and effectiveness in the lips have not been established. For the lips we use hyaluronic-acid filler, which is a different treatment with its own page.
Can a biostimulator be dissolved if I change my mind?
No. Hyaluronic-acid filler can be broken down with an enzyme called hyaluronidase if it ever needs to be, but Sculptra and RADIESSE are not hyaluronic acid, so that enzyme does not work on them. It is one reason we spend real time on the plan before anything is placed.
What is common in the days after?
The FDA labeling for both products lists swelling, redness, tenderness and bruising as the most common responses, and RADIESSE's adds itching and that the area may feel firm to the touch. With Sculptra, early fullness from the water it is mixed with usually settles within hours to a few days. If anything worries you while you heal, call us.
How much do Sculptra and RADIESSE cost?
On our menu, Sculptra® is $800 a vial and RADIESSE® is $800 a syringe. Your total is set at your consultation, because it depends on which product suits you, which areas we treat and, for Sculptra, how many sessions the plan needs. The consultation itself is free.
How long do the results last?
It varies from person to person and from product to product, and the studies behind each label measured different things over different periods, so we do not quote a single figure. We talk through what to expect for your plan, and when a follow-up visit makes sense, at your consultation.
Sources
- U.S. Food and Drug Administration, Sculptra patient labeling (PMA P030050/S039). accessdata.fda.gov/cdrh_docs/pdf3/P030050S039D.pdf (opens in a new tab) · Retrieved October 19, 2026
- U.S. Food and Drug Administration, Sculptra instructions for use (PMA P030050/S039). accessdata.fda.gov/cdrh_docs/pdf3/P030050S039C.pdf (opens in a new tab) · Retrieved October 19, 2026
- U.S. Food and Drug Administration, RADIESSE premarket approval record (P050052). accessdata.fda.gov/scripts/cdrh/cfdocs/cfpma/pma.cfm?id=P050052 (opens in a new tab) · Retrieved October 19, 2026
- Merz Aesthetics, RADIESSE patient guide. radiesse.com/wp-content/uploads/2025/12/radiesse-patient-guide-nlf.pdf (opens in a new tab) · Retrieved October 19, 2026
- PubMed, Calcium hydroxylapatite filler: histologic findings (Berlin et al., 2008). pubmed.ncbi.nlm.nih.gov/18547184/ (opens in a new tab) · Retrieved October 19, 2026
General information, not medical advice — for your own skin and your own plans, that is what a consultation is for. Our Terms of Service put it in full.
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