This study found that laserDopplervelocimetry can non-invasively predict topical minoxidil response by correlating scalp blood flow changes with sulfotransferase enzyme activity in women with pattern hair loss.
April 2016 in “Journal of Investigative Dermatology”
This study found a perfect correlation between laserDopplervelocimetry measurements of scalp blood perfusion after minoxidil application and sulfotransferase enzyme activity in hair follicles, indicating a potential non-invasive test to predict minoxidil response in female pattern hair loss.