Ganoderma lucidum extract may help treat stress-related hair loss.
4 citations,
December 2013 in “Acupuncture and related therapies” N-acetyl-cysteine shows promise in treating various diseases and may improve skin and hair conditions, but more research is needed on dosages and long-term effects.
22 citations,
July 2015 in “PloS one” Foxp1 helps control hair stem cell growth and response to stress during hair growth cycles.
27 citations,
August 2018 in “Frontiers in Plant Science” High levels of auxin increase root hair growth by activating RSL2 and producing ROS, while high phosphate levels hinder growth by repressing RSL2.