Journal · Founder · 6 min
Why we test on Fitzpatrick II to VI.
Most published cosmetic trials still cluster around Fitzpatrick I to III. That is not the customer we serve.
Dr Judey · Biomedical Emporium®
15 April 2026
Cosmetic literature has a well-documented sampling problem. The majority of published studies were done on European or North American cohorts, which means most of the data cluster inside Fitzpatrick I to III. The higher-melanin skin types the Gulf region actually carries were underrepresented for decades.
Every Biomedical Emporium clinical protocol starts at Fitzpatrick II and finishes at VI. The trial cohort matches the population the product is going to. That is why the tranexamic and alpha-arbutin numbers we publish are the numbers you can expect to see on Emirati skin, not the numbers extrapolated from a Zurich cohort.
Read next
Rebuilding after over-exfoliation.
Redness, tightness, stinging, and shine. Four signals the barrier is asking for a two-week reset.