A treatment room at J'adoreMEDICAL PEELS
The first wrinkles. Skin that has "lost its bounce".
Uneven tone after years in the sun. Fine hyperpigmentation and post-acne marks. This is the classic moment when a serum alone stops being enough, and something stronger comes to mind. Retises CT (Mediderma) is a retinol peel — a treatment built on retinol, the "gold standard" of skin rejuvenation. It works differently to acid peels: instead of simply dissolving the epidermis, it penetrates deeper and stimulates accelerated skin renewal — it boosts collagen production, speeds up cell turnover, evens out skin tone and smooths the surface. Its signature is a distinctive yellow film (hence "Yellow Peel") and a few days of light flaking, after which the skin is noticeably smoother and more radiant. It's a peel with visible impact, but not an aggressive, maximum-intensity one — done well, it delivers a lot without drama or weeks of downtime. At J'adore Instytut, it is performed by an experienced cosmetologist. Below you'll find everything worth knowing before your first visit.
Best results come from a series of 4–6 sessions every 2–4 weeks (outside the summer season), followed by seasonal maintenance.
How it works
Retises CT is a retinol peel from the Mediderma line. Retinol is a pure, active derivative of vitamin A — the most extensively studied rejuvenating ingredient in cosmetology. Unlike classic acid peels, which mainly dissolve the stratum corneum, retinol works through "signalling": it penetrates deep into the skin and prompts cells into accelerated renewal. The result is faster epidermal turnover, more visible collagen and elastin synthesis, an evener skin tone and a smoother surface.
In practice it works like this: the product is applied in the salon and stays on the skin for several to a dozen or so hours (some protocols are "take-home" peels, which you wash off after a set time). The skin takes on a characteristic yellowish tint (hence the informal name "Yellow Peel"), and after 2–4 days fine flaking begins — this is when the old epidermis sheds, revealing smoother, brighter skin underneath. It's a controlled, planned process, not a complication.
In the salon, Retises falls into the category of peels for rejuvenation — wrinkles, hyperpigmentation and loss of firmness — with strong support for photo-ageing and post-acne marks. It's a peel with visible impact, but chosen with care: your cosmetologist determines its strength, variant and series after assessing your skin phototype and condition. The goal isn't "the strongest possible exfoliation" — it's the right dose of retinol for your skin.

Ideal for
The female zone and the male zone
For women, the retinol peel is most often the answer to the first wrinkles, loss of firmness and hyperpigmentation — after 30, after summer, after pregnancy (hormonal pigmentation). Retises smooths, evens out tone and "densifies" the skin, and it usually covers not just the face but the neck and décolletage too — the zones that reveal age fastest. We usually run it as a series, in the cooler months.
The areas we support
Men's skin is thicker and more prone to being oily, with larger pores, along with scars and unevenness from acne and, usually, no habit of using SPF — meaning faster photo-ageing. The retinol peel for men works wonders on this kind of skin: it evens out texture, smooths acne marks and refreshes tone, and thicker skin often tolerates retinol well. The goal: better skin quality without a "salon-fresh" look.
The areas we support
Worth knowing: the yellow tint after Retises isn't "discolouration" or a side effect — it's the natural colour of retinol (a vitamin A derivative) settling on the skin. Hence the informal name "Yellow Peel". The film washes off and fades along with the flaking over the following days — and the skin turning yellow is actually a sign that the product has worked. Retinol is the only skincare ingredient with such strong scientific evidence for real skin rejuvenation that it's sometimes called the "gold standard" of anti-ageing.
Safety
A retinol peel sounds simple — "apply retinol to the face" — and that's exactly why it's easy to get wrong. Three things determine the result and safety, and they're worth asking about at any salon:
This is a beauty treatment — at J'adore it's carried out by an experienced cosmetologist, who assesses your phototype, skin condition, previous treatments and contraindications, then gives you clear instructions on how to manage things at home while the product works and the skin flakes. A retinol peel "without a consultation and without a phototype assessment" is a straightforward path to irritation or hyperpigmentation — especially with darker skin tones.
We use only original Mediderma products (Retises CT) from legitimate supply channels. Retinol is sensitive to light and oxidation — a product "from an unknown source" or stored incorrectly may be inactive and ineffective, and its strength unpredictable.
Retises is meant to renew the skin, not "burn" the epidermis. What matters is matching the retinol concentration and frequency to your skin, and a sensible series plan in the right season — not maximum strength on your first visit.
Red flags with retinol peels ·
MEDICAL PEELS
Contraindications
Some contraindications are permanent, others temporary — in which case we simply postpone the treatment until the situation passes. This is a chemical peel containing retinol, so skin condition, phototype, season and issues related to vitamin A and sun exposure are all key.
From the cosmetologist's chair
The most commonly underestimated factor with Retises is season and sun. Someone wants a retinol peel "right now", in the middle of summer or just before a holiday — and I advise against it and suggest a different time instead. This isn't fussiness: retinol makes the skin more sensitive to UV, and fresh tanning combined with full sun and no SPF is a straightforward route to hyperpigmentation — the opposite of what you want. That's why we prefer to run retinol peel series in autumn and winter.
This isn't a complete list — pregnancy, chronic conditions, medications you're taking (especially retinoids), phototype and previous treatments are all things we go through individually at consultation. With retinol peels, more than with most treatments, sensible choice of strength and season matters far more than "stronger and faster".

A chemical peel is a recognised trigger for reactivating herpes (cold sores). We don't peel over active herpes — we postpone the treatment until it has fully healed. If you deal with recurrent cold sores, be sure to mention this at consultation — with medium-depth peels, it's worth discussing antiviral prophylaxis beforehand to reduce the risk of a flare-up after the treatment.
What to expect
The key point: the retinol peel keeps "working" after you leave the salon, and flaking only appears after 2–4 days. Right after the treatment, the skin may look slightly pink and take on a yellowish tint; the actual, fine flaking begins after a few days and usually lasts a few days. This is a planned renewal process — once the flaking resolves, the skin is noticeably smoother, brighter and more radiant. The anti-ageing effect builds over a series — one session is a good "reset" for the skin, not the final result.
The most common surprise after a first session is: "I left the salon and nothing happened — then I started flaking on day three." That's completely normal, and exactly how a retinol peel is meant to work. Retinol doesn't "strip" the epidermis instantly like a strong acid — it penetrates first and stimulates the skin, and the flaking follows with a delay. So don't schedule this treatment "at the last minute" before an important event — leave yourself a few days for the flaking to resolve, so you go out glowing, not mid-process.
After the series, we maintain results with less frequent sessions and the right home care (including gentle retinol/retinoid, introduced gradually, under the cosmetologist's guidance). The most important "at home" condition for lasting results is daily SPF 50+ — retinol makes the skin more sensitive to sun, and skipping protection can quickly deepen hyperpigmentation and undo the rejuvenating effect.
Portfolio
A record of the work in our salons — the place where we publish treatment frames and, after photo sessions, results.
A record of results — in preparation. We publish photographs of our clients only with their consent.
Retises and your lifestyle
With peels, most questions aren't about the treatment itself, but about what comes after: sun, makeup, sauna, home acids and retinol, exercise, holidays. The rule is simple — for a few days after a retinol peel, the skin is more sensitive to UV and irritation, and it's flaking, so we protect it, hydrate it and don't "add" anything extra to it. With retinol, sun is topic number one.
This is the single most important point with a retinol peel. Retinol makes the skin more sensitive to UV, and freshly renewed epidermis reacts to sun more strongly; without daily SPF 50+ you risk hyperpigmentation and losing your results. Skip intensive tanning and sunbeds for the duration of the series — this is why we usually run retinol peels outside peak summer.
Give your skin a rest from makeup on the day of the peel. During the flaking days, foundation can collect on the peeling skin — it's better to focus on hydration, care and SPF, and leave heavier makeup until the flaking has resolved.
High temperatures intensify redness, and chlorinated water irritates freshly flaked skin. It's best to hold off on saunas, hammams and swimming pools for a few days, until the flaking is over.
After the peel, pause your home retinol, strong AHA/BHA acids and coarse scrubs. Applying actives to freshly flaked skin is the most common cause of irritation. We reintroduce your home retinol gradually, as agreed with your cosmetologist.
Intense exercise and heavy sweating right after the peel can sting and intensify redness. Training before the treatment doesn't block anything — just give your skin a moment of calm afterwards.
A retinol peel right before a holiday in full sun (or a series in the middle of summer without disciplined SPF) risks hyperpigmentation. Planning a trip? Mention it at your consultation — we'll choose the right timing and strength, ideally in a cooler season.
Retises CT — retinol
Price list

Face
30 min · Retinol (Mediderma)
Area, number of sessions and salon — we'll work out the price straight away.
Warsaw, Żelazna 59 · 420 zł
Prefer to call? Żelazna 573 569 431 · Mińska 732 228 806 · Karmelicka 732 228 846
See also
MEDICAL PEELSFerulac — ferulic acidSee treatment: Ferulac — ferulic acid
MEDICAL PEELSMandelac — mandelic acidSee treatment: Mandelac — mandelic acid
MEDICAL PEELSRetix.CSee treatment: Retix.C
AESTHETIC MEDICINENeedle mesotherapySee treatment: Needle mesotherapy
FACIAL COSMETOLOGYAnti-ageing programmeSee treatment: Anti-ageing programme
LASER THERAPY / HIGH-TECH / REMOVALHyperpigmentation removal (DYE-VL)See treatment: Hyperpigmentation removal (DYE-VL)The result lastsSmoothing and radiance become visible once the flaking resolves. Wrinkle reduction, hyperpigmentation fading and firmness improve, and these effects build up and settle over the series.J’adore Instytut
This text is for information only and does not replace a consultation. Retises CT is a beauty treatment (a Mediderma retinol peel) — the term "medical-grade peel" refers to the class of product, not to the treatment being performed by a doctor. The choice of peel, its strength, the series and any contraindications are determined by a cosmetologist/specialist during an individual consultation, based on an assessment of your skin phototype and condition, among other factors.