Kratom has earned a reputation as a “natural” herb for boosting energy or easing pain, but some users have raised concerns about unexpected side effects — including hair loss. While many of these accounts are anecdotal, the question remains: does kratom really cause hair loss, or is something else at play?
Research on this topic is still very limited. One analytical study detected mitragynine (a key kratom alkaloid) in human hair samples, with concentrations ranging from 16.0 to 2,067 pg/mg (mean ~ 905 pg/mg), showing that compounds can indeed accumulate in hair over time.