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Collagen Stimulation
  • Aesthetic Medicine
  • /
  • Collagen Stimulation

Collagen Stimulation with Radiesse® & Sculptra® – Tightening from within that you see and feel

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Face of a woman against an ochre wall, a narrow warm band of light falls across the cheekbones, symbolic image on the subject of collagen stimulation at BONITAS in Nuremberg

You feel it before you see it: Your skin appears softer, less defined, and contours lose their firmness. Perhaps they aren’t deep wrinkles – but you feel that your skin needs structure, not just volume.

With collagen stimulation using Radiesse® or Sculptra®, BONITAS offers you a sophisticated aesthetic solution for long-term skin firming – without an artificial look, but with noticeable substance.

At a glance: The collagen stimulation with biostimulators (PLLA / CaHA) stimulates the body’s own collagen production for firmer, more youthful skin.

  • Treatment time: 30–45 minutes
  • Material: poly-L-lactic acid or calcium hydroxylapatite
  • Sessions: 2–3, spaced 4–6 weeks apart
  • Onset of effect: gradual, after 4–8 weeks
  • Duration of effect: 18–24 months
  • Prices: in our price overview

What is Collagen Stimulation?

During collagen stimulation, a special active ingredient is injected into the deeper skin layer, which specifically activates the production of the body’s own collagen and elastin there – the natural “structural components” of your skin.

The result:

  • Improvement of Skin Density & Quality
  • Firmer, tighter skin
  • Smoothing of Fine Lines
  • Regeneration from within – slowly, but sustainably

Who is the treatment suitable for?

  • For decreasing firmness & elasticity
  • If you don't want a classic filler, but still want to build structure
  • As a preventive measure from mid-30s onwards
  • For visible signs of aging on the face, neck, dĂ©colletĂ©, hands
  • Also ideal for treatments tailored to men (e.g., jawline, cheeks)

This method is particularly suitable if you say:

“I don’t want to appear overfilled – but firmer, clearer, and more defined again.”

Radiesse® & Sculptra® – two paths, one goal

Radiesse® (Calcium Hydroxylapatite)

  • Fine particles of calcium, similar to the body's own mineral
  • Immediately visible tightening + collagen building
  • Combines slight lifting with firmer skin texture
  • Ideal for cheeks, jawline, chin, hands

Sculptra® (Poly-L-Lactic Acid)

  • Deep-acting stimulation of fibroblasts
  • No immediate volume – long-term effect over weeks
  • Particularly suitable for overall skin improvement on the face & dĂ©colletĂ©
  • Also for advanced skin aging

BONITAS advises you individually on which product best suits your skin, your age, and your goal.

Treatment Zones & Effect

Zone Effect of Collagen Stimulation
Cheeks & Temples More Volume, Firmness, Contour
Jawline & Chin Defined, firmer facial contour
Neck & Décolleté Finer skin texture, fewer fine wrinkles
Hands Smoothing & Tightening
Lower Jaw Area Against “tired” contours & initial sagging

Treatment Process at BONITAS

  • Consultation & skin analysis by a specialist
  • Selection of Radiesse® or Sculptra® – depending on findings & wishes
  • Injection with a fine cannula into deeper skin layers
  • Treatment duration: approx. 30–45 minutes
  • No downtime – slight swelling or pressure sensation possible
  • Optional: gentle massage for active ingredient distribution

For maximum effect, we recommend a series of 2–3 sessions at intervals of 4–6 weeks for Sculptra®. For Radiesse®, one treatment with an optional touch-up is usually sufficient.

Advantages over classic fillers

Collagen Stimulation Hyaluronic Acid Filler
Activates endogenous collagen Lifts with external volume
Natural, gradual result Immediate effect
Long-lasting (up to 2 years) 6–12 months durability
For broad-area skin improvement Targeted correction

Why BONITAS?

  • Specialist medical procedure by a aesthetic doctor
  • Original preparations & precise injection technique
  • Experience in biostimulation & aesthetic harmonization
  • Natural results – no overcorrections
  • Modern, discreet clinic

BONITAS stands for regeneration instead of overtreatment – for patients who want to look radiant long-term, without looking artificial.

Frequently asked questions (FAQ)

Collagen stimulation refers to an aesthetic treatment that specifically stimulates the body’s own collagen production. Through special injectable active ingredients – such as Radiesse®, Sculptra®, or polynucleotides – the skin structure is built up from within. The result is firmer, tighter skin with improved elasticity, without artificial plumping. This method is particularly suitable for preventing and correcting loss of elasticity on the face, neck, or dĂ©colletĂ©.

In a collagen-stimulating treatment, biostimulators such as Radiesse® (calcium hydroxylapatite), Sculptra® (poly-L-lactic acid), or polynucleotides are injected into the deeper skin layers. These substances specifically stimulate the new formation of collagen fibers – for a firmer skin structure, more volume, and visible regeneration. The effect builds up gradually and offers natural skin rejuvenation without volume overload.

Collagen can be effectively stimulated by certain injectable preparations such as Radiesse®, Sculptra®, or polynucleotides. These active ingredients activate fibroblasts in the dermis, which form new collagen and elastin. Microneedling, laser treatments, or focused ultrasound can also have a supportive effect – however, the stimulating effect of injectable preparations is usually more intense and long-lasting.

With Radiesse®, a slight tightening is often visible immediately after the injection, as the gel carrier material provides immediate volume. The full biostimulating effect becomes apparent after about 4 to 8 weeks. With Sculptra®, the effect begins more slowly – visible improvements in skin structure usually appear from the second treatment onwards and continuously build up over several weeks. Polynucleotides also work gradually and additionally stimulate cell regeneration.

The effects of collagen stimulation usually last 18 to 24 months – depending on the product, skin type, and lifestyle. Refreshment treatments can be planned individually and can stabilize the result long-term. A specialist medical consultation helps determine the optimal interval for repetitions.

Smiling man with dark hair and beard in white coat against light background: Alejandro Marti, specialist in plastic and aesthetic surgery, BONITAS Nuremberg
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Scientific References

  1. Ferreira ACM et al. „Efficacy, Durability, and Safety of Collagen Biostimulators Based on Poly-L-Lactic Acid (PLLA) and Calcium Hydroxyapatite (CaHA) in the Face: A Systematic Review.” Aesthetic Plastic Surgery. 2026. PubMed PMID 41184662
  2. Urdiales-Gálvez F, BenĂ­tez PA et al. „Clinical Outcomes of an Innovative Poly-L-Lactic Acid (LASYNPRO) in Facial Rejuvenation: Prospective, Multicenter Spanish Study.” Journal of Cosmetic Dermatology. 2026. PubMed PMID 41715284
  3. Massidda E. „Starting Point for Protocols on the Use of Hyperdiluted Calcium Hydroxylapatite (Radiesse®) for Optimizing Age-Related Biostimulation and Rejuvenation of Face, Neck, DĂ©colletage and Hands.” Clinical, Cosmetic and Investigational Dermatology. 2023. PubMed PMID 38050476

Medically reviewed and written by
Specialist in Plastic and Aesthetic Surgery 🇩🇪 🇪🇸 · Belegarzt (admitting privileges)
With more than 1,000 plastic and aesthetic treatments performed, both surgical and minimally invasive. Comes from a family with a long tradition in Plastic and Aesthetic Surgery.
Last reviewed: May 2026