
What is CLaCS?

Dr. Joana de Carvalho explains what CLaCS treatment is.
Cryo-Laser and Cryo-Sclerotherapy (CLaCS) is an innovative technique in phlebology for treating spider veins on the legs. This method combines laser therapy with sclerotherapy.
With this treatment, you can treat a larger number of spider veins at a time and achieve faster aesthetic results.
Dr. Joana de Carvalho is currently the only doctor in the Iberian Peninsula certified by the Miyake Clinic, where this technique was developed.
Before and After Cases of CLaCS Treatment (Laser with Sclerotherapy)
See the difference in varicose veins and spider veins before and after treatment.
CLaCS Treatment
The procedure consists of the combined application of a transcutaneous laser and injections of a liquid, with the aid of a cooler with a continuous flow of cold air that offers greater comfort to the patient.
The physical action of the cold air and the technique used will collapse the vein and also destroy the wall of the diseased vessel.
To enhance results, VeinViewer is used, an augmented reality technology that emits infrared rays to project onto the skin veins that are invisible to the naked eye but are the source of visible spider veins. This device also allows treatment of the veins that feed the veins visible on the surface of the skin.
It is a non-invasive and non-aggressive treatment for the body.
Contraindications
This technique may be indicated for a large percentage of patients who wish to treat spider veins.
However, prior to any treatment, a consultation and assessment must be carried out.
If you are pregnant, and since this is a time when spider veins is likely to develop, it is best to wait until 6 months after delivery to obtain more promising results.
Dr. Joana de Carvalho treating spider veins with the CLaCS technique.
Procedure
1-3h per session (depending on the area to be treated);
Performed in the office;
You can return to work immediately.
Post-treatment
After the CLaCS procedure, the patient can resume their routine immediately. Sun exposure is discouraged in most cases.
It is not necessary to use elastic support stockings.
The risks associated with the technique are rare. As a result of the sclerotherapy sting, patients may develop local edema or bruising. The effects are temporary.
Medical Specialist
in CLaCS
Dr. Joana de Carvalho
- Graduated from the Faculty of Medicine of the University of Porto
- Specialist in Angiology and Vascular Surgery
- Fellow of the European Board of Vascular Surgery
- Member of the College of Phlebology

Specialist Doctor
in CLaCS
Prof. Doctor Sergio Sampaio
- Graduated from the Faculty of Medicine of the University of Porto
- PhD from the Faculty of Medicine of the University of Porto
- Specialist in Angiology and Vascular Surgery
- Fellow of the European Board of Vascular Surgery

Specialist Doctor
in CLaCS
Dr. José Carlos Vidoedo
- Graduated in Medicine from the University of Porto (FMUP)
- Specialist in Angiology and Vascular Surgery
- Fellow of the European Board of Vascular Surgery
- Author and co-author of several communications and articles.

Medical Specialist
in CLaCS
Dr. Filipa Jácome
- Specialist in Angiology and Vascular Surgery
- Master's Degree in Medicine, from the Abel Salazar Institute of Biomedical Sciences (ICBAS)
- Guest Lecturer at the Faculty of Medicine of the University of Porto (FMUP)
- She was awarded 5 scientific merit awards.

CLaCS Patient Testimonials
I would like to extend a huge thank you to Dr. Joana for the incredible results achieved with this treatment.
Treating your legs is about health, but also about personal fulfillment, self-confidence, and, of course, beauty. And this was only possible thanks to Dr. Joana and her excellent team. I am very happy and fulfilled with the results achieved. I strongly recommend all women who have suffered strokes or other leg health issues to schedule an appointment with Dr. Joana, as she is undoubtedly a leading figure in the world of "beautiful legs."
Thank you so much Dr. Joana for transforming my legs into “beautiful legs”!
Sandra Ribeiro
My experience at Allure Clinic has been wonderful. The care and professionalism of the entire team, from the receptionist to the nursing staff, as well as Dr. Joana de Carvalho, has been outstanding.
It's a dream come true to be treated by this excellent team. Thank you all so much.
Andreia Pires
I had low self-esteem about my legs. I had a problem wearing skirts, shorts—in short, "showing off my legs." After the treatments at the Allure Clinic with Dr. Joana, I was extremely satisfied because I feel great not only with the visible results, but also with the "heaviness" or tiredness in my legs. It exceeded all my expectations. I recommend all women with varicose veins or bleeding to seek out Dr. Joana's treatment. Thank you also to the entire Allure Clinic team! Now I feel like a super happy woman.
Marisa Gomes
The team was extremely professional and friendly. The treatment was perfect, with incredible results.
Ana Catarina Freitas