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About the treatment

Renuvion is an advanced treatment used to tighten the skin and improve its firmness without removing excess skin. As a result, it leaves no visible scars at all. The treatment is often used in combination with liposuction to create more defined and harmonious body contours, as the technology specifically addresses the skin laxity that liposuction alone cannot treat.

At Caolín, the treatment is always tailored to you, with a focus on natural proportions, precision and results that support your body shape.

At a glance

Price
Determined at your consultation
Anaesthesia
General anaesthetic (performed in combination with liposuction)
Duration
Adds 30–60 minutes to the liposuction procedure
Hospital stay
1-3 hours
Compression garment
Worn day and night for 4–6 weeks
Downtime
1–2 weeks depending on extent
Final result
Gradually over 9 months
Renuvion (J-Plasma) skin tightening

What is Renuvion, and how does it work?

Renuvion is a controlled heat treatment of the subcutaneous tissue that produces permanent tightening.

The Renuvion system converts helium gas into plasma using radiofrequency energy. When this plasma is delivered under the skin, a controlled and precise amount of heat is released into the subcutaneous tissue. The temperature is high enough to make the collagen contract immediately and set a long-term regeneration process in motion, but low enough not to damage the surrounding tissue. Renuvion is delivered through a very fine cannula via the same entry points as the liposuction.

What is remarkable about the technology is the combination of immediate and long-term effects: the skin contracts during the procedure itself and continues to tighten over the following 9-12 months as new collagen is formed. In other words, the effect is not static, but continues for a long time after the procedure.

When is Renuvion relevant?

Renuvion is suitable when the skin has a degree of laxity that is too pronounced for liposuction alone to give an optimal result, but not so pronounced that surgical skin excision is necessary. It is typically relevant:

After liposuction

After liposuction of the abdomen, flanks, neck, back or upper arms, where the skin lacks the elasticity needed to adapt to the new contour.

Reduced skin elasticity

In patients over 40, whose natural skin elasticity is reduced and responds less well to liposuction alone.

Moderate skin laxity

For moderate skin laxity on the abdomen, flanks, inner thighs, knees, upper arms or neck, as a supplement or alternative to surgical skin excision.

A supplement to other procedures

As a supplement to a mini tummy tuck or other procedures where additional skin tightening in adjacent areas is desirable.

Renuvion is not a substitute for surgical skin excision where there is significant excess skin. If the skin is markedly sagging, a tummy tuck, arm lift or thigh lift remains the right solution. At your consultation, the surgeon will assess whether Renuvion is the right addition for you.

Liposuction and Renuvion

Renuvion and liposuction, the natural combination

Liposuction and Renuvion are always performed at the same time. Liposuction removes the fat deposits and creates the desired contour, and Renuvion then tightens the skin. The two procedures are performed in the same session through the same entry points.

The result is usually better than liposuction alone, as Renuvion makes the skin firmer and tighter. For many patients, this is the difference between a good and an excellent result, and it is why Renuvion is increasingly an integral part of our liposuction treatments at Caolín.

Reviews

What our patients say

Excellent

Based on 40 reviews

Trustpilot
3 Aug 2026

Safe and professional

Felt I was in very safe and professional hands from my first consultation with Bo. ESPECIALLY on the day of the operation itself, when I was very n…

Thomas Hansen

13 Mar 2026

Bo Sonnich Rasmussen is the most amazing surgeon

From start to finish he is simply attentive, honest, present, professional and just outstandingly good at his job. He is really good at guiding and…

Lille My

14 Jan 2026

Professional and warm treatment with a beautiful result

From my first consultation to my follow-up check almost 3 months later, I received the most professional treatment at Caolin.

Heidi Maria Petersen

11 Jan 2026

Eyelid surgery and liposuction

With his perfectionism and aesthetic sense, Frederik Kølle has carried out the most beautiful surgical work on my upper and lower eyelids as well a…

CK

15 Dec 2025

The most beautiful result and a wonderfully reassuring experience

From the very first consultation, I experienced a fantastic combination of high professional expertise, honesty and genuine presence. Bo took plent…

Marie Jensen

4 Dec 2025

Breast reduction with Bo

I'm already so happy with the result. He takes great care, places a high value on aesthetics, small details and your wishes, and it just feels incr…

Christine Sten

17 Jan 2026

Highly recommended

Nawras is a competent and professional cosmetic nurse who really listens to your wishes and carries out the treatment with great precision and a tr…

Victoria

10 Dec 2025

Extremely skilled and reliable surgeon

His professional skill combined with a warm and understanding approach means you feel completely safe throughout the whole process.

Isolde

26 Nov 2025

Fantastic surgery

A very skilled and experienced surgeon and a fantastic team of lovely nurses made it a safe and positive experience.

Louise Girich

18 Nov 2025

Professional and empathetic experience

Professional and empathetic experience at Caolin, I can recommend it most warmly.

Birgitte Holstein

15 Oct 2025

The doctor you always hope to meet

From the moment you walk in, you sense something truly special: calm, respect and genuine humanity. He sees the whole person, not just the symptoms.

Camilla

11 Oct 2025

Fantastic clinic

I can warmly recommend Caolin, and thank you so much for super professional treatment from start to finish. You are guided all the way.

Karina Jensen

1 Jul 2025

I would warmly recommend Caolin clinic

From the very first moment, I was met by friendly, welcoming and professional staff who really made an effort to make me feel safe and to understan…

Mette Dansberg

7 Oct 2025

5 stars is not enough

The clinic is incredibly beautiful and stylish, and the entire staff are friendly, welcoming and professional. I felt safe throughout the whole pro…

Camilla

Good to know

Questions and answers

Here you will find the whole process step by step — from consultation to the first weeks at home. If there is anything you cannot find an answer to, bring it up at your consultation.

Morpheus8 and similar radiofrequency treatments work from the surface down into the skin using needles. Renuvion works subcutaneously, beneath the skin, and delivers the energy directly into the layer where the collagen is. This gives a deeper and more intense effect and is particularly well suited in combination with liposuction, as access has already been created through the liposuction entry points.

The process

What to expect at Caolín

  1. Consultation

    The process starts with a thorough consultation, where you and the surgeon go through your wishes and your options together. The surgeon assesses the quality and elasticity of your skin and the areas you would like treated.

    You will also talk about realistic expectations, as the natural quality of your skin affects the final result. It is important to us that you feel well informed and at ease throughout the entire process.

  2. Before the surgery

    Once the treatment plan is in place, you will receive thorough advice on medication, supplements, smoking and fasting.

    On the day of surgery, you will be welcomed by our team, and you will meet the nurse, the anaesthetist and the surgeon. The treatment areas are marked, and the plan is reviewed once more before the surgery begins.

  3. During the surgery

    The surgery is performed under general anaesthetic and is often combined with liposuction. Through small entry points, the tissue beneath the skin is treated with Renuvion technology, which stimulates contraction and tightening.

    The treatment is performed with great precision and tailored to the quality of your skin and the desired result. Finally, the small entry points are closed and the area is protected with compression.

  4. After the surgery

    After the surgery, you will be monitored by our staff before you can go home. In the early period, it is normal to experience swelling, tenderness, discolouration and slight unevenness in the treated area.

    We recommend rest, gentle movement and wearing a compression garment as instructed by your surgeon. The result develops gradually over the coming months as the skin contracts and the tissue settles.

The surgeons at Caolín
Consultation at Caolín

Book a free consultation at Caolín

Your journey begins with a personal consultation. Here we go through your wishes and options, so that together we can create a treatment plan that feels right for you.

The specialists

Bo Sonnich Rasmussen, MD, PHD

Bo Sonnich Rasmussen, MD, PHD

Founder & Chief Plastic Surgeon

Bo Sonnich Rasmussen is a consultant in plastic surgery and one of the Nordic region's leading specialists in cosmetic breast surgery and advanced facial surgery, and one of the few surgeons to master endoscopic facelift without visible scars. He holds a PhD in breast reconstruction using stem-cell-enriched fat grafting and is internationally recognised for his work and research in the field.

Meet the specialist
Frederik Kølle, MD, PHD

Frederik Kølle, MD, PHD

Founder & Chief Plastic Surgeon

Frederik Kølle is a certified and internationally recognised plastic surgeon specialising in facial and cosmetic surgery as well as advanced fat grafting and body contouring. He is among the Nordic region's leading experts and masters the full spectrum of facial and breast surgery.

Meet the specialist

Financing your treatment

We offer financing, so you can spread the cost of your treatment. If you have any questions about financing, you are always welcome to contact us – or ask at your consultation.

The calculation is indicative. Credit assessment and terms are set by Resurs Bank.