January 2019 in “Analytical Science and Technology” This study developed a rapid method using advanced chromatography and mass spectrometry to detect hair-growth enhancing compounds, discovering synthetic drugs in about 21% of tested supplements.
13 citations
,
August 1995 in “Australasian Journal of Dermatology” This study found that hair canal and follicle diameters, outer root sheath area, and terminal-to-vellus hair ratios were significantly reduced in androgenetic alopecia patients compared to normal controls.
9 citations
,
January 2011 in “Skin Research and Technology” This study developed a high-resolution phototrichogram system that can automatically and accurately assess hair growth metrics in cosmetic trials, achieving over 90% correlation with manual measurements.
March 2005 in “Journal of The American Academy of Dermatology” This study investigates the potential of a cosmetic day lotion with a 5a-reductase inhibitor and a night lotion with an angiogenic ingredient to modulate hair growth, but reports no clinical results.
33 citations
,
January 2017 in “Conservation physiology” This study found that measuring reproductive hormone levels in brown bear hair may effectively support non-invasive genetic sampling, though larger samples or more sensitive techniques are needed for broader application.
