Sculptra vs Radiesse: collagen stimulators, honestly

Sculptra and Radiesse both prompt your skin to make more of its own collagen, but they are not interchangeable: Sculptra works slowly and invisibly over months, Radiesse gives shape on the day and then builds. Neither can be dissolved, so the choice deserves a slower conversation than most clinics give it.

What a collagen stimulator is

A hyaluronic acid filler adds volume on the day and is gradually absorbed. A collagen stimulator is placed under the skin and your body reacts to it by laying down new collagen around the particles. The product breaks down over time, and the collagen your skin made is what remains.

Sculptra is poly-L-lactic acid, a material the body breaks down slowly. The manufacturer's leaflet describes gradual tissue thickening over a few weeks after each session, and says the product disappears within about 18 months or longer while the improvement it stimulated lasts (Galderma IFU, 2026).

Radiesse is calcium hydroxylapatite, calcium mineral particles of 25 to 45 microns suspended in a gel (Merz IFU, 2023). The gel gives lift on the day. The particles then act as a scaffold for new collagen as the gel is absorbed.

Sculptra: slow, gradual, a course

You will not walk out of a Sculptra session looking different. Only a limited correction is made each time, because the effect builds over weeks. The manufacturer's leaflet describes a cycle of four sessions at least four weeks apart, reassessing after each, and its consumer page says a typical course is about three sessions over a few months (Galderma, 2026). At Nova most courses are two or three sessions of one or two vials, reassessed before each. Results vary.

The payoff is longevity. Galderma's studies showed improvement lasting two years or more (Galderma IFU, 2026). Effects beyond three years after the first injection have not been studied (Galderma USA eIFU, 2023).

Sculptra is used in the cheeks, temples, nasolabial folds, marionette lines and chin crease. It is not injected into the red of the lip or around the eyes, and it is for adults only (Galderma IFU, 2026).

Price at Nova: one vial 340, two vials 600.

Radiesse: shape on the day, then collagen

Radiesse is closer to a filler in how it feels to have. You see a change straight away, swelling settles over 7 to 10 days, and any numbness from the anaesthetic in the product goes within 4 to 6 weeks (Merz EU IFU, 2020). Collagen building continues underneath over the following months.

It is used for nasolabial folds, cheeks, marionette lines, the jawline and the backs of the hands (Merz EU IFU, 2020). It is not for the area between the eyebrows or the nose, and it has not been studied in the lips or around the eyes (Merz, 2020 and 2023). Nova does not inject it in any of those places.

How long does it hold? The manufacturer's documents do not give a single figure. In the jawline trial the effect was sustained for up to 48 weeks, with 67.3% of responders still responding at that point (Merz US IFU, 2023). Most people at Nova find it holds around a year or more. Results vary.

Price at Nova: 340 per 1.5 ml syringe. Usually one session, with a small top-up no sooner than a week later if needed.

The two things no one says loudly enough

First, neither can be dissolved. If a hyaluronic acid filler is overdone or placed badly, there is a treatment that dissolves it. That treatment does not work on Sculptra or Radiesse, because neither is hyaluronic acid. A published protocol for blocked vessels with these products says there is "no simple reversal" and that the dissolving injection is "unlikely to digest the blockage" (Beer, Downie and Beer, 2012). The Radiesse leaflet puts it as "cannot be easily removed" (Merz EU IFU, 2020). So we treat conservatively and build up.

Second, diluted Radiesse for skin tightening is off-label. You may have read about Radiesse mixed with saline and spread thinly across the neck, chest or arms. The 2018 global consensus that defined those dilutions states that the use is off-label (Goldie et al, Dermatologic Surgery, 2018). That does not make it unlawful, but the manufacturer's leaflet does not cover it, and anyone offering it must tell you so and take separate consent. Nova does not offer diluted Radiesse as a standard treatment.

Who it suits, and who it does not

Sculptra suits someone who has lost volume across the mid face or temples, wants a change nobody can date to one appointment, and is content to wait months over two or three sessions. It does not suit anyone who wants a result for an event next month, anyone who wants their lips or under-eyes treated, or anyone who cannot commit to the massage routine afterwards.

Radiesse suits someone who wants visible shape in the cheeks, jawline or hands on the day, with collagen afterwards. It does not suit the nose, the area between the eyebrows, the lips or the eye area.

Neither suits anyone under 18, since cosmetic filler for an under-18 is an offence in England (the 2021 Act listed in Sources), anyone pregnant or breastfeeding, anyone with a history of severe allergic reactions, or anyone with an infection, cold sore or inflamed skin in the area. Autoimmune conditions, blood thinners, a tendency to scar badly and previous filler in the same area need a discussion first.

A hyaluronic acid filler or a skin booster may be the right answer for you instead, and we will say so.

Risks and recovery

Common to both: bruising, swelling, tenderness and redness. For Sculptra these usually settle within a week (Galderma IFU, 2026). For Radiesse, swelling usually settles in 7 to 10 days (Merz EU IFU, 2020). Sculptra needs you to massage the area for several days afterwards so the product spreads evenly; you are given the exact routine.

With Sculptra, nodules can appear several weeks to a year after injection. In the manufacturer's cheek study, 1.0% of 97 people developed a nodule; in the nasolabial study, a third to a half of people recorded lumps or bumps in their diaries, mostly mild and short-lived, with fewer in the group given the larger dilution (Galderma USA eIFU, 2023). Some settle on their own, some need an injected treatment, and large or persistent ones may need surgical excision (Galderma IFU, 2026). With Radiesse, nodules were reported in 0.9% in the nasolabial trial and injection site mass in 10.9% in the jawline trial; on the hands, 12% developed lumps that can last up to a year (Merz, 2023 and 2020). Delayed swelling weeks or months later, sometimes after an illness, vaccination or dental work, has been reported with Radiesse (Merz US IFU, 2023).

Rare but serious for both: a blocked blood vessel, which can damage skin and, extremely rarely, affect sight. Because neither product dissolves, this is managed with medicines and close follow-up rather than a reversal injection.

FAQ

Which is better, Sculptra or Radiesse?

Neither is better. Sculptra is for gradual, long-lasting volume over a course. Radiesse is for shape on the day with collagen afterwards. The right one depends on what has changed in your face and how quickly you want to see it.

Does Sculptra hurt?

There is a scratch and pressure at each point. A local anaesthetic can be mixed into the product. Most people describe it as tolerable.

How long does Radiesse last?

The manufacturer's jawline study showed effect up to 48 weeks (Merz, 2023). Many people find it holds around a year or more. Results vary.

Can Sculptra or Radiesse be dissolved?

No. The injection that dissolves hyaluronic acid filler does not work on either (Beer et al, 2012). That is why we start conservatively.

Is diluted Radiesse for the neck available?

It is an off-label use (Goldie et al, 2018). Nova does not offer it as a standard treatment. Ask at your consultation.

This is information, not medical advice. What suits you depends on your own history and your own skin, so book a free consultation.

For the products we use and how we decide on volume, see our dermal fillers page.

Book a free consultation: novabeautyclinic.com or WhatsApp 077 21 400 600.