What biostimulators are
Biostimulators, also called collagen stimulators, are injectables chosen to trigger your skin's own collagen-building response. Collagen production slows with age, and the face gradually loses support: temples hollow, cheeks flatten and the jawline softens. Instead of only filling that space, a biostimulator encourages your body to rebuild some of it.
The label groups treatments by goal, not by material. The two injectable biostimulators at Embrace, Sculptra and Radiesse, are made of different substances and change the face at a different pace.
Sculptra vs Radiesse
Both are FDA-approved for specific facial uses, and both stimulate collagen. Here's how they differ.
Material
- Sculptra: poly-L-lactic acid (PLLA) microparticles
- Radiesse: calcium hydroxylapatite (CaHA) microspheres in a gel, with lidocaine in the formulation Embrace uses
Speed and duration
- Sculptra: gradual; full results develop over about 8–12 weeks and can last up to two years or longer
- Radiesse: visible support right away, plus collagen stimulation; shown in manufacturer studies to last up to two years
Sessions
- Sculptra: usually 2–3 sessions, 4–6 weeks apart
- Radiesse: planned individually by area and response
FDA-approved uses
- Sculptra: smile lines (nasolabial folds), fine lines and wrinkles in the cheek area, and other facial wrinkles
- Radiesse: facial wrinkles and folds, hand volume loss, jawline contour (Radiesse (+)) and, since 2026, a diluted preparation for chest wrinkles
Cost at Embrace
- Sculptra: $800 per vial, or $2,100 for three
- Radiesse: part of our filler pricing, from $699 per syringe
Are biostimulators better than fillers?
Not better, just different. It depends on the product, and the two categories overlap in one place.
Radiesse is both
Radiesse is a dermal filler and a biostimulator. Embrace also offers Hyperdilute Radiesse, a thinner preparation used when the plan focuses on collagen support and skin quality rather than immediate volume.
Sculptra works gradually
Sculptra is a collagen-stimulating injectable chosen for a slow response rather than instant gel-based volume.
HA fillers are different
Restylane, Belotero Balance (+) and Obagi MagIQ are hyaluronic acid dermal fillers used for specific volume and contour goals. They aren't normally classed as biostimulators. Their advantages: results are immediate, and they can be dissolved if needed.
Biostimulators for jowls and the jawline
As collagen and bone support decline, the jawline loses definition and early jowls appear. Radiesse (+) is FDA-approved to improve moderate to severe loss of jawline contour in adults 22 and older, with visible structure right away. Sculptra can rebuild support along the lower face gradually, though jawline use is off-label.
When loose, sagging skin is the main issue rather than lost volume, lifting may help more. A PDO thread lift repositions tissue and also stimulates collagen as the threads dissolve.
Who is a good candidate
Biostimulators tend to suit adults who:
- Have gradual facial volume loss, hollowing or thinning skin
- Want natural-looking change rather than an obvious "done" look
- Are comfortable with results that build over weeks or months
- Want longer-lasting support and can commit to a planned series
A physician-led comparison
Dr. John Mark Pabona reviews your concern, treatment area, health history, current skin care and the pace of change you're comfortable with before recommending an option, or recommending against one.
Start with a physician-led plan
Immediate structure, gradual collagen building, platelet-based treatment and topical PN/PDRN care are different paths, not interchangeable versions of one treatment. Book a skin consultation to compare them with Dr. Pabona. It's complimentary when you purchase a treatment or skincare product, and CareCredit financing is accepted.
Deep dermis
- Epidermis
- Dermis
- Deep dermis
- Fat pads
- Muscle
Questions
Common questions about biostimulators
What is an example of a biostimulator?
Sculptra and Radiesse are the best-known examples. Sculptra is made of poly-L-lactic acid (PLLA) and builds collagen gradually. Radiesse is made of calcium hydroxylapatite (CaHA) and gives immediate support while also stimulating collagen. Both are FDA-approved for specific facial uses, and both are offered at Embrace, along with Hyperdilute Radiesse for skin-quality plans.
Should I choose Sculptra or Radiesse?
It depends on how fast you want change and what you're treating. Radiesse gives visible support immediately and is FDA-approved for facial folds and jawline contour. Sculptra builds collagen gradually over a series of sessions and suits broader, whole-face volume loss. Some people benefit from one, some from both and some from neither. Dr. Pabona recommends based on your anatomy and goals.
How much do biostimulators cost?
At Embrace, Sculptra is $800 per vial, or $2,100 for a three-vial package, and most plans need more than one vial. Radiesse is part of our filler pricing, which starts at $699 per syringe. Your total depends on the areas treated and how much product you need, and you'll get exact pricing at your consultation.
Are biostimulators better than Botox?
They do different jobs, so one isn't better than the other. Biostimulators rebuild support and volume by stimulating collagen. Wrinkle relaxers like Dysport, Xeomin and Letybo relax the muscles behind expression lines such as frown lines and crow's feet. Plans often combine both: a wrinkle relaxer for the upper face and a biostimulator for volume loss.
How long do biostimulator results last?
Often longer than many hyaluronic acid fillers. Sculptra results can last up to two years or longer once full correction is reached, and Radiesse has been shown in manufacturer studies to last up to two years. Results vary with your age, skin, the area treated and how your body responds.
Does Embrace offer PRP injections?
Embrace offers PRF (platelet-rich fibrin) rather than PRP. Both are prepared from your own blood, but PRF is spun at a lower speed without anticoagulants, so it forms a natural fibrin matrix that releases growth factors gradually. It can be paired with microneedling or RF microneedling. Ask about PRF at your consultation if you've been researching PRP.
