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GuideBiostimulators

Guide · Skin quality and collagen formation

Biostimulators in Berlin Comparing Sculptra, Radiesse and polynucleotides

Greater firmness, a more defined contour and finer skin texture are different goals. Biostimulators are often mentioned together, but they do not work in the same way. I help you distinguish between collagen formation across a wider area, targeted volume support and skin quality – and explain where exosomes stand, including the questions that remain unanswered.

Understand your concernsCosts at a glance

With a personal perspective from Andrea CalettiSpecialist in Plastic and Aesthetic Surgery · Berlin

Woman with short silver-grey hair and natural skin texture on her cheek and neck
Understanding your wishes and taking time to weigh up the options.

The short answer

Which treatment serves which goal?

Sculptra focuses primarily on gradually building up tissue. Radiesse can combine immediate shaping with later collagen stimulation. Polynucleotides are more often considered for skin quality and fine lines. The term ‘non-surgical lift’ does not make these treatments equivalent to a facelift.

  1. Volume and wider areas

    Sculptra and fillers differ in their timelines and what they can achieve.

  2. Contour and structure

    Radiesse treatment is planned to suit the area, tissue and desired effect.

  3. Skin quality

    Polynucleotides and other regenerative approaches are not universal skin-tightening methods.

From your wishes to understanding

The differences begin with the treatment goal

A product should fulfil a specific purpose. A trending term or a combination of several products does not, in itself, make a good treatment plan.

01Sculptra / PLLA

Gradually building up tissue across a wider area

Poly-L-lactic acid is intended to stimulate the body's own collagen production. The effect develops over several weeks, and treatment is often planned as a series of sessions.

Understand the context

Hollow cheeks or tissue loss across a wider area may be suitable starting points. Early fullness after injection is partly due to fluid and is not yet the final collagen result. The frequently quoted duration of 18–24 months is a guide, not a personal promise.

The lips and the thin-skinned tear trough area should not be included in a blanket Sculptra treatment plan. Unlike hyaluronic acid, this material cannot be dissolved with hyaluronidase.

02Radiesse / CaHA

Immediate shaping and later stimulation

Calcium hydroxylapatite microspheres in a carrier gel can support contour and volume; a tissue response also develops over time.

Understand the context

The cheeks, chin and jawline are assessed in relation to the rest of your proportions. Swelling can affect the early result. The frequently quoted duration of 12–18 months varies from person to person.

Diluted applications serve different goals from targeted contouring. The area, product instructions and any off-label uses are discussed separately. Radiesse cannot be dissolved with Hylase either.

03Polynucleotides / PN

Fine lines and skin quality

Polynucleotides are processed nucleic acid fragments. The colloquial terms ‘salmon DNA’ and ‘salmon sperm treatment’ refer to the origin of certain products, not to unprocessed material.

Understand the context

The focus is on hydration, texture and possible regenerative effects. This does not replace substantial volume restoration or the removal of excess skin. The strength and extent of clinical evidence vary according to the product and its application.

Around the eyes, it is important to establish whether the concern involves thin, dry skin, pigmentation, blood vessels, a tear trough or under-eye bags. PN treatment cannot address all these causes equally. Allergies and the specific origin of the product are discussed beforehand.

04Exosomes

Separating research from treatment promises

Exosomes are small, membrane-bound particles that can transmit signals between cells. Biological plausibility alone does not establish a reliable aesthetic benefit for a specific product.

Understand the context

Origin, processing and composition can vary considerably. Findings from laboratory studies cannot simply be applied to a skin treatment. Before a recommendation could be made, product quality, clinical evidence, legal status and the specific route of administration would need to be clearly established.

A product applied externally is not automatically suitable for injection or for skin freshly opened by laser treatment or microneedling. Exosomes are therefore not an interchangeable alternative to injectable polynucleotides. Mentioning them here does not mean they are offered as a treatment as a matter of course.

05Scars and hair

Each application needs its own evidence

Questions about acne scars or hair loss cannot be answered with a general promise of regeneration alone.

Understand the context

The depth and shape of a scar determine whether an additional procedure may be worthwhile. With hair loss, identifying the cause comes first. Results on facial skin are not evidence of effectiveness on the scalp.

PRP, laser treatment, scar treatment and, where appropriate, other specialist approaches each have their own requirements. I discuss which goals can realistically be addressed through treatment and when further examination takes priority.

Comparing treatments

Sculptra or Radiesse – and where polynucleotides fit in

The active ingredient, how results develop, the treatment area and reversibility all differ. None of these treatments is suitable for every area simply because it is described as a ‘biostimulator’.

Sculptra

Main focus
PLLA for gradual collagen formation, generally across a wider area.
Progress and limitations
The effect develops over several weeks and often lasts around 18–24 months, depending on the individual. It is not an instant facelift.
Treatment and aftercare
Several sessions are often needed; the risk of nodules and personalised aftercare must be taken into account.

Radiesse

Main focus
CaHA with a possible immediate effect on volume and contour.
Progress and limitations
An early gel effect is followed by later stimulation; effects often last around 12–18 months, depending on the individual.
Treatment and aftercare
The amount of product, treatment area and any dilution need to be planned individually.

Polynucleotides

Main focus
Skin quality, hydration and fine lines.
Progress and limitations
Results develop gradually; this does not replace substantial volume restoration.
Treatment and aftercare
Several appointments are usually needed, depending on the product and findings; small papules and swelling are possible.

Hyaluronic acid fillers

Main focus
Targeted support for volume or contour.
Progress and limitations
The effect is immediate, though initially influenced by swelling. Excess skin is not removed.
Treatment and aftercare
Vascular risks and, where needed, options for correction with Hylase are discussed.
Andrea Caletti during a personal consultation.A decision that fits your life

A closer look

What a non-surgical facial lift can achieve

A liquid lift and biostimulation can support volume or contour where the findings are suitable. They do not remove excess skin or reposition deeper sagging tissue in the way that a surgical lift does. For pronounced jowls, a facelift should therefore be included in the comparison.

A thread lift can provide mechanical support; radiofrequency, RF microneedling, ultrasound and laser treatments use different forms of energy or skin stimulation. These methods are not interchangeable with one another or with Sculptra or Radiesse. Mentioning them provides an overview of the options, not a promise that every treatment is suitable for you or available at the practice.

When treatments are combined, each must have a clear purpose. Using several methods at once can make assessment more difficult and increase the burden of treatment. I plan the sequence and intervals so that benefits, tolerability and progress can be clearly assessed.

  • Assess volume, the skin surface and tissue sagging separately.
  • Discuss the limits of a non-surgical approach openly.
  • Plan a combination only where there is a sound reason to expect an additional benefit.

Costs in Berlin

Costs and scope
for your planning

The product, area, quantity and number of sessions determine the extent of treatment. For a course of treatment, the total cost matters, not just the price of the first appointment.

Sculptraper treatment, depending on its extentfrom €600Radiesseper treatment, depending on its extentfrom €500Polynucleotidesper treatment, depending on its extentfrom €300Hyaluronic acid fillersHyaluronic acid treatment · depending on the area and materialfrom €400

A reliable flat-rate price for biostimulation cannot be given without a specific plan. Later maintenance treatment, other procedures and additional diagnostic assessments are discussed separately.

Discuss the extent of your treatment

Deciding together

Biostimulation: planning the course of treatment

I assess skin thickness, volume and contour, and review previous treatments. Your expectations and willingness to attend several appointments are equally important when choosing a treatment.

  1. 01

    Record previous treatments

    Provide as much detail as possible about products, dates, quantities and any previous reactions.

  2. 02

    Agree on the steps

    Set out a clear plan for a single treatment or a series of sessions, the intervals between them and your personalised aftercare.

  3. 03

    Assess the result

    Allow weeks to months; comparable photographs can document progress, but do not guarantee a result.

Personal consultations in Berlin-Charlottenburg
Kurfürstendamm 200 · 10719 Berlin
c/o Vita Aesthetica

Contact & Directions

An informed decision

Safety and risks
considered carefully

Even products that are biodegradable or described as regenerative carry risks. Quality, appropriate indications and accessible aftercare are essential.

  • Redness, swelling, bruising and a feeling of pressure can occur; small raised areas after microinjections are possible.
  • Nodules, inflammatory reactions and infections are possible. In rare cases, injections can cause blocked blood vessels, leading to tissue damage or loss of vision.
  • PLLA and CaHA cannot be dissolved with Hylase. Infections, allergies, medication, pregnancy and breastfeeding are taken into account beforehand.
  • Exosome products require a separate assessment; neither topical application nor combination with procedures that open the skin is automatically safe.

When you need immediate helpSevere, increasing pain, pale or mottled skin and visual disturbances after an injection require immediate assessment. If you experience visual disturbances or severe acute symptoms, call 112.

Dottore Andrea Caletti with a warm smile.

The person here for you

Andrea Caletti

Specialist in Plastic and Aesthetic Surgery

I want you to recognise yourself in your appearance and feel comfortable with it.

My professional journey

Exploring the wider context

Aesthetic Longevity

A long-term perspective on skin health and treatment.

Surgical facelift

Options for more pronounced tissue sagging.

Laser treatments

Understanding the skin surface and further treatment options.

Facelift without scars

Volume loss, the skin surface, facial expression and sagging tissue call for different approaches.

Skin Quality & Regeneration

Your skin accompanies you through every stage of life. Here you can learn what skincare and sun protection can achieve, when treatment may be worthwhile and why regeneration takes time.

Skin during menopause

A familiar cream suddenly no longer feels sufficient, your skin feels tight or becomes more sensitive. New skin needs can emerge during menopause. A manageable routine and a clear understanding help more than rapidly switching between numerous promises.

Good to know

Frequently asked questions:
Biostimulators

A website can offer guidance. We will discuss your individual situation during a medical consultation.

Ask your question
01

Is Sculptra better than Radiesse?

That depends on the goal. Gradually building up tissue across a wider area is different from targeted contour support. The skin, tissue thickness, treatment area and previous treatments all play a part in the decision.

02

How soon will I see an effect?

Sculptra's actual effect develops over several weeks. Radiesse can provide volume initially, with a collagen response developing later. With polynucleotides, the assessment focuses on a gradual change in skin quality.

03

How many sessions will I need?

That depends on the product, the initial findings and how treatment progresses. Several appointments spaced a few weeks apart are often planned. A fixed schedule based on age alone is not appropriate.

04

Can I go straight to an important appointment afterwards?

Swelling, bruising or small raised areas may be visible. Allow enough time between treatment and your appointment; being ready for social occasions on the same day cannot be guaranteed.

05

Can I massage the area after treatment?

That depends on the product and your individual treatment approach. Follow your personalised instructions rather than general massage routines from the internet.

06

Are exosomes the same as polynucleotides?

No, they differ in their origin, composition, mechanism of action and product status. One treatment cannot replace the other without a separate assessment.

07

Do polynucleotides help with under-eye bags?

They do not remove larger bulges of fat or excess skin. There may be different goals for fine lines and skin quality; the precise cause of the change must first be established.

08

Do before-and-after photos prove that a treatment works?

Lighting, angle, facial expression, swelling and other treatments all influence the impression. An individual pair of photos is not a reliable prediction and, when treatments are combined, does not prove how much a single product contributed.

Let's begin with a conversation

Personal consultation
about your wishes

Tell me what matters to you.
I will take time for your questions.

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