Facials & Peels
PRX-T33®
Biochemical skin stimulation

At a Glance
In Brief
Non-ablative peel concept
Treatment Duration
45–60 minutes
Pain
Generally well tolerated, slight tingling possible
Anaesthesia
Usually not required
Downtime
Usually no downtime
Results
Changes possible straight away, developing over 8–10 weeks
Duration of Effect
Varies with the skin concern
Sessions
Often 3–6, every 7–10 days
Price
From CHF 250
PRX-T33® is a non-ablative peel concept for biochemical skin stimulation, in which the outer skin layer is preserved. Its active ingredients reach the deeper skin layers, where they stimulate collagen production and support skin regeneration. This can leave the skin looking fresher and smoother, with finer-looking pores and a more even complexion.
The treatment can be considered for selected superficial skin concerns on the face, neck and décolleté, including fine lines, pigmentation, acne scars or enlarged pores. During the consultation, we talk with you about suitability, the expected skin response, the risk of pigmentation changes, downtime and aftercare.

Treatment Areas
The treatment is used for selected superficial skin concerns in the following areas.
Fine Lines and Wrinkles
On the face, PRX-T33 can be used for fine lines, wrinkles and crow’s feet, the small lines at the outer corners of the eyes. The stimulated collagen production can help the skin look firmer and more elastic.
Pigmentation and Melasma
The kojic acid in the formula has brightening properties. It can reduce age spots, sun spots and melasma, a patchy pigmentation of the face, and so contribute to a more even complexion.
Acne Scars and Pores
Depressed acne scars, enlarged pores and blemished skin can also be treated with PRX-T33 to refine the skin’s texture. How many sessions make sense depends on the size and depth of the scars.
Neck and Décolleté
The delicate skin of the neck and décolleté can also be treated. Signs of ageing can be softened here, and the skin can take on a more elastic, toned appearance.
What is PRX-T33®?
PRX-T33 serves to biorevitalise the skin, encouraging it to renew itself. Its patented formula contains 33% trichloroacetic acid (TCA) and 67% hydrogen peroxide (H₂O₂). The hydrogen peroxide moderates the peeling effect of TCA on the surface. This allows TCA to reach the dermis, the deeper layer of the skin, while the outer layer stays intact, which is why PRX-T33 is described as non-ablative.
In the dermis, the treatment stimulates fibroblasts, the cells that produce collagen and elastin. This can make the skin look firmer, smoother and more elastic. An initial improvement may be visible straight after the treatment, with further changes developing over 8–10 weeks.
The formula also contains kojic acid, a naturally derived ingredient with brightening properties. It inhibits tyrosinase, an enzyme involved in producing the skin pigment melanin, and can therefore help reduce pigmentation. Kojic acid also has antibacterial and anti-inflammatory properties, which is helpful for acne-prone skin as well. Because PRX-T33 does not increase sensitivity to light, the treatment can also be carried out in summer and on tanned skin. Combining PRX-T33 with other treatments is possible and is planned case by case.
- Non-ablative peel concept
- 33% TCA and 67% hydrogen peroxide
- Stimulates collagen and elastin production
- Kojic acid with brightening properties
- Gel massaged into the skin
- Can also be used in summer

Why PRX-T33® at Aesthetics Medical?
Certified Team
Our team is certified and specially trained in the PRX-T33 method and experienced in applying the patented formula correctly. This is the basis for careful, precise treatment.
Fresh Complexion
Once the session is over, the skin can look firmer, better supplied with blood and fresher. Further changes from the stimulated collagen production follow in the weeks afterwards.
Gel Massaged In
The formula is applied to the skin as a gel and massaged in, so no needles or injections are involved. You may feel a slight tingling while it is applied.
Your Usual Routine
The skin does not usually peel afterwards, so you can generally carry on with your daily routine without interruption.
Planned Around Your Concern
The number of sessions and the areas treated depend on your skin concern: pigmentation, fine lines or acne scars. This way, your treatment plan is suited to your skin.

What does the treatment involve?
Consultation
We analyse your skin type and condition, clarify your goals and discuss whether PRX-T33 is suitable for you and how many sessions are likely to be needed. We also explain the possible risks and realistic results. Please let us know if you are taking any medication or have a skin condition.
Preparation
The area to be treated (face, neck or décolleté) is thoroughly cleansed and dried to remove all traces of make-up and cream. Ideally, avoid heavy creams and make-up for 2 hours before your appointment.
Applying the Gel
The gel is applied to the skin and massaged in using a special technique until it has been absorbed. This step is repeated 2 to 3 times, and you may notice some tingling.
Mask and Skincare
The skin is then washed, patted dry and covered with a revitalising mask, which is left on for about 10 minutes. A moisturising day cream is applied to finish.
Aftercare
You receive skincare recommendations for the days that follow. Good hydration and sun protection are important, and sunbathing and sunbeds should be avoided for the first 3 days.
Further Sessions
If several sessions are planned, the next treatment can take place after 7–10 days.
| Face | CHF 250 |
| Each additional area (neck or décolleté) | CHF 50 |
You will be told the exact amount for your treatment plan after the consultation.
Frequently Asked Questions
How does the treatment work and how long does it take?
After the skin has been cleansed, the PRX-T33 gel is massaged in over 2 to 3 rounds. A revitalising mask is then left on for about 10 minutes, followed by a moisturising cream. The whole session takes 45–60 minutes.
Is the treatment painful, and is anaesthesia used?
Most patients find the treatment comfortable. While the gel is massaged in, you may feel a slight tingling or prickling as blood flow to the skin increases. Anaesthesia is usually not required, as no needles or injections are used.
What risks and side effects are possible?
PRX-T33 is generally well tolerated. A slight tingling is common while the gel is massaged in, and in rare cases mild redness or a burning sensation may occur, which usually fades quickly. The outer layer of the skin remains intact. Possible risks, including pigmentation changes, and your suitability are discussed in detail during the medical consultation before treatment.
What should I consider before the treatment?
Please tell us in advance if you are taking any medication, particularly photosensitising medication or isotretinoin, or if you have a skin condition. On the day of treatment, ideally avoid heavy creams and make-up for 2 hours beforehand. You will receive further preparation instructions before your appointment.
What should I consider after the treatment?
Keep your skin well moisturised over the following days and use sun protection consistently. Sunbathing and sunbeds should be avoided for the first 3 days. You will receive your personal skincare recommendations straight after the session.
How long does recovery take after the treatment?
As a rule, no downtime is needed after PRX-T33, and you can usually return to your everyday activities straight away. The skin also does not usually peel. Slight redness or a burning sensation is possible in rare cases and generally fades quickly.
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When do results become visible?
Initial changes may be visible immediately afterwards, with the skin looking fresher, firmer and better supplied with blood. Further development, driven by new collagen formation, generally takes place over 8–10 weeks. The course varies from person to person.
How long do the results last?
How long the effect lasts depends, among other things, on the skin concern treated and, for pigmentation, on its cause. Regular maintenance treatments may be advisable to help maintain the effect. We discuss with you how often these would make sense.
How many sessions are usually needed?
The number of sessions depends on your skin concern and goals. A series of 3–6 sessions, 7–10 days apart, is often recommended, and for acne scars the number depends on their size and depth. We agree on a suitable plan together.
Who is the treatment suitable for?
PRX-T33 can be used on different skin types, from very fair to dark skin. The treatment should not be carried out during pregnancy or breastfeeding, with an allergy to kojic acid or latex, or while taking photosensitising medication or isotretinoin. The same applies to active skin rashes, irritated skin and skin conditions including herpes, eczema or atopic dermatitis. We assess your suitability before the treatment.
How much does the treatment cost?
Treatment of the face costs CHF 250, and each additional area (neck or décolleté) costs CHF 50. Aesthetic treatments are usually paid for privately. We give you the exact cost of your treatment plan after the consultation.
Personal Consultation
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Every treatment starts with a conversation and a 3D analysis.