# TEO SKIN — Full Reference for AI Assistants

> Germany's first Skin Maintenance Studio. Professional, structured skin-health treatments timed to the skin's natural 28-day renewal cycle. No spa, no upsells — clear prices and results that accumulate. Open in Berlin Mitte (Torstraße 103); a second studio in Prenzlauer Berg (Schwedter Str. 268) is opening. Canonical domain: https://teoskin.com. Primary language: German (de). Legal entity: True Essential Outcome GmbH.

## What is Skin Maintenance?
Skin Maintenance is a structured approach to skincare based on the skin's biological 28-day renewal cycle. Instead of occasional spa visits, the skin receives regular, evidence-based treatments at the right rhythm — for cumulative, visible results.

## The 28-day cycle
The skin renews itself roughly every 28 days in four phases: Renewal (day 1–7), Ascent (day 8–14), Maturation (day 15–21), Shedding (day 22–28). TEO SKIN times treatments precisely to this biological cycle so the skin gets the right care at the right time. Recommended cadence for most maintenance treatments: once every 28 days. More often adds little; less often loses the effect.

## How a visit works
A typical appointment runs ~60 minutes including skin analysis, treatment, and a take-home routine. Arrive ~10 minutes early. Every treatment starts with a short consultation/skin reading to determine the cycle phase and tailor the session.

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## Treatments

### Aquafacial
- One-liner: Cleanse, refine, replenish. Visibly fresher skin in 30 minutes — no downtime.
- Outcomes: dry skin feels plumper; make-up sits evenly again; blackheads on nose and chin are out; smoother skin you can feel. Visible right after the treatment, strongest over the first five to seven days; back to baseline after about two weeks.
- Facts: 30 min treatment (45 min appointment) · from €119 · downtime none · every 28 days.
- Price: €119 walk-in. Included in the Skin Health Club membership at €89/month (€69/month permanently after a successful referral).
- Protocol (4 steps): Cleanse — double cleanse before the handpiece goes on. Refine — a mild acid solution with glycolic and salicylic acid lifts dead skin cells from the surface. Infuse — a hyaluronic solution is worked in and saturates the upper skin layers with moisture. Push-Up — final hydration and panthenol; the skin looks plumper.
- Add-ons: Ausreinigung (+10 min, €15); LED light therapy (+25 min, €20); sheet mask (+10 min, €12).
- What it is: A cosmetic treatment combining four steps in a single pass: cleanse, exfoliate, infuse actives, replenish. No needles, no ablation, no downtime. Designed as a routine rather than a one-off.
- How it works: A vacuum handpiece moves coordinated solutions over the skin in a spiral: a cleansing solution dissolves sebum and dead cells, a mild acid solution (AHA/BHA) refines texture, a hyaluronic solution saturates the skin with moisture. Simultaneous suction lifts what has been dissolved — without pressure or squeezing. Imaging shows a thinner, smoother stratum corneum afterwards, which reflects light more evenly and reads as glow.
- Good for: clogged pores and combination skin; dull, dehydrated skin; before an event (ideally 5–7 days ahead); a first aesthetic treatment; ongoing maintenance.
- Partially suitable: first fine lines (hydration and surface smoothing only — no structural build-up); superficial unevenness in tone.
- Not for: deep acne scars or deep wrinkles (microneedling is the better route); active rosacea flares; markedly inflamed skin; fresh sunburn or irritated skin; open lesions, cold sores or infections in the treatment area; isotretinoin therapy within the last 12 months.
- Evidence: Stratum corneum measurably thinner and surface smoother immediately post-treatment, local blood flow increased, and changes largely reverting to baseline within two weeks — Razi et al., Skin Research and Technology, 2024 (n=8, observational, no control group). Improvement in the appearance of pores, fine lines and pigmentation over a series — Freedman, Journal of Cosmetic Dermatology, 2008 (n=20, small, unblinded, confounded by an antioxidant serum). Gentler on the skin barrier than crystal or diamond microdermabrasion — mechanistically plausible, but no direct head-to-head comparison has been published.
- Aftercare: 24h — no make-up for the first few hours, no sport, sauna, steam or hot showers. 7d — pause retinol, AHA/BHA, high-dose vitamin C and physical exfoliants for 48–72h; daily SPF 30–50 because the stratum corneum is measurably thinner; light redness immediately afterwards is normal. 28d — no waxing, laser hair removal or further peels in the area for two weeks; the next appointment at 28 days meets the start of the next skin renewal cycle.
- FAQ: Does it hurt? No — it feels like a cooling suction. How quickly do I see something? Immediately, strongest in the first days, then receding — which is why it is designed as a routine rather than a one-off. Why every 28 days? That is roughly one skin renewal cycle; in the rhythm you meet each new cycle instead of starting over each time. Can I wear make-up afterwards? Please not for the first few hours; then light care rather than heavy foundation. Is this a medical treatment? No — it is a cosmetic treatment; skin conditions belong with a dermatologist first.

### Microneedling + LED Light Therapy
- One-liner: Six months, not six days. A controlled stimulus your skin answers with its own remodelling — finished with light therapy.
- Facts: 50 min treatment (65 min appointment) · from €149 · no classic downtime, redness possible · every 4 weeks.
- Price: €149 walk-in. Included in the Full Reset membership at €119/month (€99/month permanently after a successful referral). Essential members can upgrade their included Aquafacial to Microneedling + LED for €50.
- Protocol (5 steps): Cleanse — thorough cleansing to prepare the skin. Refine — gentle exfoliation lifts dead skin cells and clears the pores ahead of the needling. Needle — controlled impulses prompt collagen formation and the skin's own renewal; intensity is matched to skin condition and to each facial area. Push-Up — selected actives and intense hydration support regeneration. LED light therapy — a light protocol chosen per skin condition: blue for congested skin, red with fine lines in mind, near-infrared to calm the skin after the needling.
- What it is: A cosmetic treatment. Fine needles create controlled micro-channels in the upper skin layers; the skin answers with its own remodelling programme. Finished with LED light therapy. Not a medical-intensity treatment.
- How it works: Tissue sections after multiple sessions showed measurably higher proportions of type I and III collagen and of newly formed collagen. This remodelling takes time — controlled trials found the clear difference not at four weeks but after several months and across a course, which is why the treatment is run as a series rather than as one-offs. The LED step uses visible and near-infrared light; absorption in the mitochondria is the leading proposed mechanism, but the precise mechanism is still unsettled in the literature and the evidence differs sharply by wavelength.
- Good for: atrophic scarring after congested skin (the best-evidenced indication); first fine lines and uneven texture; prevention from the mid-20s; anyone willing to work as a series rather than one-off.
- Partially suitable: visible pores (widely marketed, poorly evidenced — smoother texture is what was measured, not the pore itself); uneven tone.
- Not for: actively inflamed congested skin (LED light therapy as a standalone session is the calmer route); a short-notice glow before an event (Aquafacial is built for that); pregnancy & breastfeeding; blood-thinning medication, keloid tendency; isotretinoin taken within the last 12 months; open lesions, cold sores or infections in the treatment area; sunburn or fresh tan; photosensitising medication (the LED step is then dropped).
- Evidence: Atrophic scarring after congested skin appears visibly softer after a course of three sessions — Alam et al., JAMA Dermatology, 2014 (n=20, split-face controlled, blinded assessment; 15 of 20 completed; difference not significant at three months, significant at six). Well tolerated across light and dark skin types without pigmentary disturbance — Fabbrocini et al., Journal of Dermatological Treatment, 2014 (n=60, uncontrolled, unblinded). Type I and III collagen and newly formed collagen measurably increased in tissue sections — El-Domyati et al., International Journal of Dermatology, 2015 (n=10, no control group; a histological surrogate, not a visible outcome). Enlarged pores visibly reduced by microneedling alone — NO reliable study found; all hits used radiofrequency devices or additional actives. Blue light improves the appearance of congested skin — Scott et al., Annals of Family Medicine, 2019 (meta-analysis, 14 trials, n=698): pooled effect NOT statistically significant. Red and near-infrared light reduce wrinkle depth and improve elasticity — Lee et al., Journal of Photochemistry and Photobiology B, 2007 (n=76, randomised, double-blind, sham-controlled; the widely quoted "36%" is a best-case group value, not an average; three-month follow-up). Near-infrared light after a treatment speeds resolution of redness and swelling — Calderhead et al., Laser Therapy, 2015 (narrative review, no controlled trial of its own). The combination of microneedling plus subsequent LED outperforming microneedling alone — NO study of the combination found.
- Time course: unlike a surface treatment, the effect does not revert after two weeks — it needs time to become visible at all. In the controlled trial the difference was not significant at three months but was at six.
- Aftercare: 24h — light redness immediately afterwards is normal and usually settles within a few hours to a day; no make-up for the first few hours; no sport, sauna, steam or hot showers; use only the provided products. 7d — pause retinol, AHA/BHA, high-dose vitamin C and physical exfoliants for 48–72h; daily SPF 30–50, avoid direct sun; light tightness or fine flaking in the first days is normal. 28d — the next appointment makes sense after four weeks, but this is not the point of the finished result; remodelling continues over months and trials measured the clear difference only after around six months.
- FAQ: How many appointments? A course of about three, four weeks apart, as the studies were structured — but expect the timeline: the clear difference was measured only after around six months. Does it hurt? Noticeable but manageable — most describe tingling or light vibration; intensity is matched per area and dialled down on request. How long am I red? Light redness is possible and usually settles within a few hours to a day; there is no classic downtime at our cosmetic intensity. Which light do I get? Chosen per skin condition — blue for congested skin, red with fine lines in mind, near-infrared to calm after the needling; the evidence per wavelength is stated openly on the page and is frankly weak for blue. What does the Essential upgrade cost? The included Aquafacial can be switched to Microneedling + LED for €50. Is this a medical treatment? No — cosmetic intensity, not medical; skin conditions, pronounced scarring or unclear changes belong with a dermatologist first.

### LED-Lichttherapie · Light Only
- One-liner: For days when your skin tolerates nothing: 25 minutes lying down, no contact, no needles, no downtime. Which light runs is decided by the skin check beforehand.
- Facts: 25 min appointment · from €29 · downtime none · standalone, as a series or as an add-on.
- Price: €29 single / €20 member. Also bookable as a €20 add-on to an Aquafacial (+25 min). Included at no extra cost in Microneedling.
- What it is: A cosmetic treatment. 25 minutes under the light. No contact, no needles, no acid. Which light runs is decided by the skin check beforehand — there is no standard programme. It can be added directly after an Aquafacial. Under a professional panel with eye protection, no sensation beyond gentle warmth. (Wavelength detail under "How it works".)
- Outcomes: Reddened skin appears calmer, often the same day. Fine lines appear less deep. 25 minutes of warmth — nothing touches the skin. No redness, no flaking — make-up goes straight back on.
- How it works: Visible and near-infrared light at defined wavelengths; absorption in the mitochondria (photobiomodulation) is the leading proposed mechanism, but the precise mechanism is still unsettled in the literature and the evidence differs sharply by wavelength. Blue ≈415 nm stays in the epidermis (penetration ~0.2 mm); red ≈630 nm reaches the reticular dermis (~1.7 mm); near-infrared ≈830 nm reaches the subcutis (~2.4 mm). Compared with home LED masks, a professional panel delivers more even output across the whole treatment area and more tightly defined wavelengths — a difference of construction, not a measured difference in outcome. The millimetre figures are 1/e penetration depths — rounded approximations from modelling, not measured on the individual; skin type, perfusion and pigmentation shift them. They rank the three wavelengths against each other; they are not a measurement for any one person's skin.
- The three protocols: Blue — used for congested skin; the wavelength matches the absorption peak of certain bacterial porphyrins; evidence weak. Red — used with firmness and fine lines in mind; the best-designed study of the three; evidence moderate. Near-infrared — used to calm irritated skin, standalone or after a needling; reaches deepest; evidence weak for that specific use.
- Good for: reddened, irritated, reactive skin; mild to moderate congested skin; calming after microneedling or a peel; when nothing should be felt during and nothing seen afterwards; a gentle entry point before booking something more intensive.
- Not for: photosensitising medication (e.g. isotretinoin, doxycycline, St John's wort); known light sensitivity or photodermatoses; photosensitive epilepsy without medical clearance; unclear skin changes or moles in the treatment area. Atrophic scarring and deep lines → microneedling. Congested pores and blackheads → Aquafacial.
- Evidence: Red and near-infrared light reduce wrinkle depth and improve elasticity — Lee et al., Journal of Photochemistry and Photobiology B, 2007 (n=76, randomised, double-blind, sham-controlled; the widely quoted "36%" is a best-case group value, not an average; three-month follow-up). Over 90% of those treated showed a measurable reduction in wrinkle depth under red light — Barolet et al., Journal of Investigative Dermatology, 2009 (n not stated; that is the proportion showing any measurable change, not the magnitude; single-blind, 660 nm). Blue light improves the appearance of congested skin — Scott et al., Annals of Family Medicine, 2019 (meta-analysis, 14 trials, n=698): pooled effect NOT statistically significant. Near-infrared light after a treatment speeds resolution of redness and swelling — Calderhead et al., Laser Therapy, 2015 (narrative review, no controlled trial of its own; the industry figure "35% faster healing" could not be traced to any study). NOT claimed: firming, lifting or visible contour change from light alone — no reliable basis found.
- Aftercare: 24h — no restrictions at all; make-up, sport, sauna all fine immediately. 7d — daily SPF 30–50 as usual; the best-designed study treated eight times: twice a week for four weeks. A single session is pleasant — that is not what was measured. 28d — no recovery time and therefore no minimum gap; combines freely with other treatments.
- FAQ: Can I book it as an add-on? Yes — €20 on top of an Aquafacial, +25 min; included in Microneedling at no extra cost. What does a series cost? The best-designed study used eight appointments (twice weekly for four weeks). There is no series package — each appointment is €29, or €20 with membership. Do I feel anything? Gentle warmth, nothing more; eyes covered throughout. What does it add over a home LED mask? More even output across the treatment area and tighter wavelengths, so the dose on the skin is calculable rather than estimated — a difference of construction; no controlled device comparison is published. How fast do I see something? Calming after an intensive treatment is often same-day; anything involving fine lines or congested skin needs a series over weeks and is very unevenly evidenced by wavelength. Is this a medical treatment? No — cosmetic intensity, not medical; skin conditions or unclear changes belong with a dermatologist first.


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## Membership
- One facial per month included, fixed price; 30-day minimum term, pausable anytime, no contracts, no tricks.
- You start as Key Holder and rise automatically with loyalty: Key Holder → Silver Key → Gold Key — no surcharge for upgrades.
- Benefits: monthly facial included, priority booking & fixed appointment, discounted add-on sessions, automatic upgrades; higher tiers unlock premium treatments and best in-studio conditions.
- Not required: every session can be booked as a drop-in. Members pay less and get a skin analysis plus automatic scheduling — recommended but not mandatory.

## Locations (Berlin)
- Torstraße 103, 10119 Berlin (Mitte) — open.
- Schwedter Str. 268, 10119 Berlin (Prenzlauer Berg).
- Two studios in Berlin, more planned.

## Homepage FAQ
- How often should I come? One session every 28 days — the biological rhythm in which the skin renews. More brings nothing, less loses the effect.
- Do I need a membership? No. You can book any session as a drop-in. Members pay less and get skin analysis and automatic appointments — recommended but not required.
- What does a session cost? Aquafacial: €119 drop-in, €79 member. Microneedling and all other treatments are shown transparently on the treatment page.
- Which treatment is right for me? We read your skin at your first appointment and decide together. In doubt: Aquafacial — the base session for any skin phase.
- How long is an appointment? 60 minutes including skin analysis, treatment and take-home routine. Come 10 minutes early.

## Careers
TEO SKIN is hiring skin-health experts for the Founding Team: Skin Experts, Lead Skin Experts and Studio Leads. Limited spots. Apply by email to hello@teoskin.com.

## Company / legal
- Legal entity: True Essential Outcome GmbH, Kollwitzstraße 28, Berlin.
- Managing director: Marc Uthay.
- Register: Amtsgericht Berlin-Charlottenburg, HRB 286496 B.
- Contact: hello@teoskin.com
- Imprint: https://teoskin.com/impressum · Privacy: https://teoskin.com/datenschutz · Terms: https://teoskin.com/agb