Radiesse CaHA Collagen Biostimulator
Most injectables do one thing — they either add instant volume or they rebuild collagen slowly. Radiesse does both. Made of calcium hydroxylapatite (CaHA), a mineral that occurs naturally in bone, suspended in a smooth gel, it delivers immediate contour the moment it's placed and then prompts your body to build its own new collagen over the following months. That dual action makes it especially good for areas that need firm structural support — the jawline, chin, and the backs of the hands — and, in a diluted “hyperdilute” form, for tightening crepey skin on the neck and décolleté. This regenerative, build-your-own-collagen philosophy is exactly why CaHA biostimulators are among the fastest-rising treatments in aesthetics heading into 2026, with the American Society of Plastic Surgeons naming regenerative skin biostimulators a leading trend. Dr. Farhad Rafizadeh has guided patients through facial rejuvenation for more than 40 years in Morristown, NJ.
“Radiesse is the injectable I reach for when a patient needs structure, not just softening — a sharper jawline, a defined chin, support along the lower face. You get a result the day of treatment, and then it keeps improving as the collagen builds. As a surgeon, I think in terms of facial framework, and Radiesse lets me restore that framework without an operation.”
— Dr. Farhad Rafizadeh, MD FACS
How Radiesse Works
Radiesse is made of calcium hydroxylapatite microspheres — a biocompatible mineral identical to a component found in bone and teeth — suspended in a water-based gel. When injected into the deeper layers of the skin, two things happen. First, the gel provides immediate lift and contour, so the area is corrected the same day. Second, the CaHA microspheres act as a scaffold: over the following weeks your body responds by laying down fresh collagen and elastin along that framework. As the new tissue forms, the gel carrier is gradually absorbed and metabolized, leaving your own collagen to carry the result forward. Because part of the improvement is your own tissue rather than a gel deposit, it integrates naturally and supports the skin from within. Radiesse has been FDA-approved for aesthetic use since 2006.
What Radiesse Treats
Radiesse is best suited to structure, contour, and skin firmness rather than fine, high-movement areas like the lips. The most common applications include:
Sharpens a soft or undefined jawline and adds projection to the chin, restoring the lower-face framework with firm, long-lasting structural support.
Rebuilds midface support and softens deep nasolabial folds, lifting the lower face by restoring volume where it has flattened with age.
FDA-approved for the backs of the hands, and used hyperdilute to tighten crepey skin and soften lines on the neck and décolleté — the latter cleared by the FDA in April 2026.
Hyperdilute Radiesse for the Neck & Décolleté
One of the fastest-growing uses of Radiesse is the hyperdilute technique. Rather than placing concentrated product to add volume, the CaHA is diluted and spread thinly across a broader area so it no longer bulks — instead it triggers diffuse collagen production, gradually firming and smoothing the skin. This makes it well suited to the neck, décolleté, and the backs of the hands, where loose, crepey skin and “tech-neck” lines respond to collagen stimulation rather than filling. In April 2026 the FDA approved Radiesse for improving lines and crepiness of the décolleté, making it the first and only regenerative biostimulator in the U.S. approved for both the face and the body. For patients pursuing aesthetic refinement after significant or GLP-1 (Ozempic, Wegovy) weight loss, hyperdilute Radiesse is one option for the loose neck and chest skin that can follow.
→ Schedule a ConsultationMeet with Dr. Rafizadeh personally to discuss your goals and a personalized plan. Call (973) 267-0928 or request a consultation online.Radiesse vs. Sculptra & Hyaluronic-Acid Fillers
Patients often ask how Radiesse compares with the other injectables. A hyaluronic-acid dermal filler such as Juvederm or Restylane adds instant volume, lasts several months to about a year, and can be dissolved — ideal for precise shaping like the lips. Sculptra is a pure biostimulator (poly-L-lactic acid) that adds no immediate volume and rebuilds broad facial volume gradually over two to three months. Radiesse bridges the two: it gives an immediate, filler-like result and stimulates your own collagen, with enough firmness to restore structure — which is why it shines along the jawline, chin, and hands. None is “better”; they solve different problems, and many patients combine them — adding BOTOX® or Dysport for expression lines — for a complete, natural refresh. For patients who have lost significant facial volume, Dr. Rafizadeh may also discuss facial fat grafting as a surgical alternative.
Treatment & What to Expect
Radiesse is a quick in-office injection, usually completed in well under an hour. Most formulations include or are mixed with a local anesthetic for comfort, and the area is shaped precisely during placement. There is little to no downtime: most people return to normal activity the same day, though mild swelling, redness, or small bruises at the injection points are common for a few days. Because CaHA provides firm structural support, precise placement matters — one of the reasons it is best performed by an experienced injector who understands facial anatomy. You'll see an immediate contour improvement, which then refines further over the following weeks as your own collagen builds, and the standard result commonly holds for a year or more.
Are You a Candidate?
Good candidates want contour, structure, or firmer skin — a softening jawline, a recessed chin, deep smile lines, aging hands, or crepey skin on the neck and chest — and prefer a result that looks natural and lasts. Radiesse is an excellent option for patients who like the idea of an immediate result that keeps improving as collagen builds, and for those drawn to a regenerative approach over repeated short-lived fillers. It is generally not used in the lips or very fine, high-movement areas, and patients who are pregnant or have certain active skin infections may be better served by another option. At consultation, Dr. Rafizadeh reviews your goals and medical history and recommends the approach — Radiesse, Sculptra, hyaluronic-acid fillers, fat grafting, or a combination — best matched to your face.
Radiesse in New Jersey
Dr. Rafizadeh offers Radiesse in Morristown, NJ for patients throughout New Jersey — including Essex, Morris, Union, Somerset, and Bergen counties — as well as those traveling from New York City and beyond. As a board-certified plastic surgeon with a four-decade focus on facial aesthetics, he brings a surgeon's understanding of facial framework to every injection, placing collagen-building product where it restores structure most naturally. To explore the full range of non-surgical options, see dermal fillers, Sculptra, BOTOX® & Dysport, and medical skin care, or browse the before & after gallery.
Sources & References
- U.S. Food & Drug Administration. “Radiesse — Premarket Approval (PMA) & Labeling.” accessdata.fda.gov
- Merz Aesthetics. “RADIESSE Receives FDA Approval for Treatment of the Décolleté” (2026). radiesse.com
- American Society of Plastic Surgeons. “Looking into the future: Plastic surgery trends for 2026.” plasticsurgery.org
- Yutskovskaya YA, Kogan EA. “Improved Neocollagenesis and Skin Mechanical Properties After Injection of Diluted Calcium Hydroxylapatite.” Journal of Drugs in Dermatology. PubMed
- Loghem JV, Yutskovskaya YA, Werschler WP. “Calcium Hydroxylapatite: Over a Decade of Clinical Experience.” Journal of Clinical and Aesthetic Dermatology. PubMed
- American Society for Dermatologic Surgery. “Calcium Hydroxylapatite (Radiesse) — Patient Information.” asds.net
- Dr. Farhad Rafizadeh, RealSelf Q&A profile. realself.com
