
PRX-T33 works below the surface without shedding the top layer, so it firms and brightens with no visible peeling and no downtime.

PRX-T33 is often described as a peel that does not peel. It uses trichloroacetic acid, which in a conventional peel causes the outer layer to shed, combined with hydrogen peroxide, which protects that outer layer from the damage that would normally cause shedding.
The result is that the acid stimulates regeneration in the deeper layers while the surface stays intact. You get a collagen and firmness response without the several days of flaking a TCA peel would normally involve.
At Dr Ellie Sateei’s London clinic this is the treatment offered to patients who want genuine improvement in skin quality and cannot accommodate recovery time. Results vary between individuals.
The solution is massaged into cleansed skin for several minutes rather than applied and left. That working-in is part of the technique, as it determines how evenly the product acts.
Three ingredients do the work. Trichloroacetic acid stimulates the deeper layers. Hydrogen peroxide limits damage to the surface, which is what prevents the shedding. Kojic acid contributes a brightening effect and helps limit any inflammatory pigment response.
Because there is no shedding, PRX-T33 can be used at intervals a conventional peel could not, and on areas where a peeling treatment would be impractical: the neck, décolletage, hands and areas affected by stretch marks. It is also safe to use in patients who cannot avoid sun exposure entirely, though photoprotection is still advised.
It is not a substitute for a deeper peel where established pigmentation or significant texture change is the concern. It is a bio-revitalising treatment, and Dr Sateei will say where a deeper route would achieve more.

It may suit you if you are looking to:
It is not the right treatment where established pigmentation or significant textural scarring is the dominant concern, and it is not recommended where the skin barrier is compromised or there is active infection.

The solution is massaged in over several minutes. Most patients describe warmth or tingling that settles quickly once the product is removed.
There is no visible peeling and no downtime. Most patients return to normal activity immediately, and many notice the skin looking brighter and tighter the same day.
A course of four to six sessions around a week apart is typical, with results building across the course. Maintenance afterwards is planned to your skin.
“This is the treatment I offer patients who tell me they cannot be red or flaky for work, which is most of them. It gives you a real collagen response without the recovery, and it works on the neck and hands where a proper peel would be miserable. It is not as powerful as a deeper peel and I will tell you if you need one of those instead. But for skin quality with no interruption to your life, it is very hard to beat.”
Dr Ellie Sateei has over two decades of experience in dermatology and aesthetics.
£175 for a single session and £300 for a course of two. Your consultation is £195, deducted from treatment on the day.
It uses TCA, as some peels do, but it is formulated with hydrogen peroxide to protect the surface, so it stimulates the deeper layers without the shedding a conventional TCA peel causes.
There is no visible peeling and most patients return to normal activity immediately. Many notice brighter, tighter skin the same day.
A course of four to six around a week apart is typical, with results building across the course.
Yes, and it is particularly useful there, because a conventional peeling treatment on those areas is impractical.
It helps with mild uneven tone and contributes a brightening effect. Established pigmentation or melasma needs a wider plan including prescription skincare and daily photoprotection.
PRX-T33 is often planned alongside these.
PRX-T33 gives a genuine collagen response with no peeling and no downtime, which makes it the right answer for patients who cannot be out of action. An assessment will confirm whether it is enough for your concern or whether a deeper route would achieve more. Dr Ellie Sateei sees patients at her London clinic.
Our London clinic is located at 91a New Cavendish Street, London, W1W 6XF
We serve patients from London, Kent and the home counties as well as from all over the world. Our London clinic sits in the heart of Marylebone, within easy reach of the West End by tube, while our Sevenoaks clinic in Ightham is moments from the M25 and M26 for patients across Kent.