Radiesse: How the Collagen Building Filler Works

Most people know fillers as soft gels that plump lips and smooth lines. Radiesse is different. It is a firmer, denser filler made to lift and support, and it does a second job that soft fillers do not: it prompts the skin to make new collagen of its own. That combination makes it a strong choice for some areas of the face and hands, and a poor choice for others.

What Radiesse is

Radiesse is made of calcium hydroxylapatite, a mineral similar to one found naturally in bone, formed into tiny smooth microspheres and suspended in a gel carrier. When it is injected, the gel gives immediate volume and lift. Over the following weeks the gel is absorbed and the microspheres stay behind as a scaffold, and the body lays down collagen around them. The microspheres themselves are broken down slowly over time.

Because of that two stage action it is often called a biostimulatory filler. It sits between a classic hyaluronic acid filler, which mainly adds volume, and Sculptra, which builds collagen gradually and adds little on the day.

Where it works best

Radiesse is at its best where the face needs structure rather than softness, and where the skin is thick enough to cover a firmer product smoothly.

Cheeks and midface. Restoring support high on the cheek can lift the lower face and soften folds below it. The guide to cheek filler explains why support comes before filling lines.
Jawline and chin. A firm product can sharpen a soft jawline or add projection to a short chin. See the guide to jawline filler.
Deeper folds. Radiesse is approved for moderate to severe facial wrinkles and folds, such as the lines running from the nose to the mouth.
The backs of the hands. It is approved by the FDA for restoring volume in the hands, where thinning skin shows tendons and veins. The guide to hand rejuvenation covers the options.

Where it should not go

Radiesse is generally not used in the lips, where a firm filler can feel and look unnatural, or in the thin skin of the tear trough under the eyes, where it can show as lumps. Those areas are better served by softer hyaluronic acid fillers, which can also be dissolved if needed.

Radiesse compared with hyaluronic acid fillers

Hyaluronic acid fillers such as Juvederm and Restylane are soft, flexible and reversible: an enzyme called hyaluronidase can dissolve them if something is not right. Radiesse is firmer, gives more lift for the amount used and usually lasts longer, but it cannot be dissolved in the same way. That is the main trade off. It rewards careful planning and experienced placement, and it is not the product for someone trying filler for the first time in a delicate area.

The dermal fillers guide compares all the main products side by side.

Diluted Radiesse for skin quality

Radiesse can also be thinned with saline and spread in a fine layer under the skin. Used this way it adds little volume and is aimed instead at stimulating collagen to improve laxity and texture, for example on the neck, chest or arms. This is a different technique from standard placement and is used off label, so it should be discussed in detail at consultation. The guide to crepey skin covers other ways to treat thinning skin.

The treatment

Radiesse is an office treatment. Most formulations now include a local anesthetic to make the injections more comfortable. The product is placed deep, close to the bone or in the layer under the skin depending on the area, and then gently shaped. Most people return to normal activities the same day, though it is wise to avoid hard exercise and heavy pressure on the treated area for a day or two.

Results and how long they last

The lift is visible straight away, and the collagen it stimulates builds over the following months. Radiesse typically lasts around 12 to 18 months, longer than many hyaluronic acid fillers. When it begins to fade, a smaller top up is often enough to maintain the result.

Side effects and risks

Swelling, tenderness and bruising are common for a few days. Small firm areas can sometimes be felt, especially if the product is placed too close to the surface, which is why placement depth matters so much. As with any filler, there is a rare but serious risk of the product blocking a blood vessel, which needs immediate treatment. Choosing an injector with detailed knowledge of facial anatomy is the most important safety decision you can make.

Radiesse is not suitable during pregnancy or breastfeeding, or for people with active skin infections in the area or a history of severe allergic reactions.

The short version

Radiesse is a firm, calcium based filler that lifts on the day and stimulates collagen over the following months. It works best for the cheeks, jawline, chin, deeper folds and the backs of the hands, and it typically lasts around 12 to 18 months. It is not used in the lips or under the eyes and cannot be dissolved like hyaluronic acid fillers, so experience and careful planning matter more than with softer products.

Wondering whether Radiesse or a softer filler suits you?

A consultation looks at where you have lost support, how thick your skin is and what you want to change, so the right product goes in the right place.

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Tiny calcium hydroxylapatite microspheres suspended in a smooth gel. The gel gives immediate lift and is absorbed over the following weeks, while the microspheres act as a scaffold that encourages your own collagen to grow.

Usually around 12 to 18 months, which is longer than many hyaluronic acid fillers. How long it lasts depends on the area treated, how much is used and how quickly your body breaks it down.

Not in the way hyaluronic acid fillers can. There is no enzyme that reliably removes it, which is why it should be placed by an experienced injector in areas where it is well suited.

It is generally avoided in the lips and in the thin skin under the eyes, where a firm filler can show as lumps. Softer, reversible hyaluronic acid fillers are the usual choice there.

Yes. It is approved by the FDA for restoring volume in the back of the hands, where it softens the look of prominent tendons and veins.

Straight away, because the gel adds lift on the day. The collagen it stimulates builds gradually over the following months, which helps the result last.