THE SKIN FILES
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CLIENT STUDY 014
Goal · Calm, Stronger skin
12 weeks. One product added. Documented in-clinic.
Twelve weeks. One variable introduced. Medical Aesthetician monitored and documented her skin in-clinic every week.
Intake
Week 12
Individual results may vary.
Client file
Client
Tracy G., 57
Skin concern
Reactive, compromised barrier
Failed before
Acid toner · actives/retinol · vitamin C
Protocol
YURSLF PDRN · Daily
Documented by
F. Karfell, Medical Aesthetician
Period
March – June 2026
Observation log
Week 1–2
Routine reduced to three steps. No adverse response.
All actives and exfoliants withdraw; No stinging on application at any point. Baseline flushing frequency was unchanged this early. Client reported only that her skin felt more hydrated.
Week 4–8
Barrier function recovering. reaction episodes reduced.
The diffuse redness recorded across the cheeks and perinasal area at intake had visibly settled. Skin was measurably more supple and less dry on palpation — consistent with barrier recovery.
week 4
Week 8
Week 8–12
The result held with nothing on the skin.
The persistent redness was no longer visible, and skin was appreciably thicker and more resilient on palpation than in week 8. No reactive episode was recorded in this period. Client successfully reintroduced a previously intolerable active at week 12 with no stinging or flushing. Skin without any product is calmer is noticeably firmer.
week 8
Week 12
◆ Watch this before you try anything
Every product she'd tried was a bandaid. This one treats the cause.
Dr. Lindsey Zubritsky, MD, FAAD
Board-Certified Dermatologist ·
Reviewed
The one she used
YURSLF PDRN Ampoule — 50,000 PPM, real salmon-derived PDRN
The exact product in the photographs above, and the only change made to Tracy's routine for twelve weeks.
50,000 PPM · real salmon-derived PDRN
★★★★★
4.9 · 4,200+
See the ampoule she used →
See the ampoule →
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Case documented by a licensed medical aesthetician, March–June 2026, published with the client's written consent. Photographs taken in-clinic and unretouched. A single documented case is not a clinical trial and individual results vary. Dr. Lindsey Zubritsky, MD, FAAD is a compensated editorial contributor. Statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. © 2026 The Skin Files.
YURSLF PDRN Ampoule
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