research A Novel Cosmetic Approach to Treat Thinning Hair 29 citations, December 2011 in “British Journal of Dermatology” A new hair treatment with caffeine and other ingredients makes hair thicker and less likely to break.
research Alopecias January 2015 in “Springer eBooks” Chronic kidney disease can cause hair loss, which may be related to zinc deficiency or certain medications, and sometimes hair grows back when the underlying issue is treated.