research Hair Growth-Promoting Effect of Geranium Sibiricum Extract in Human Dermal Papilla Cells and C57BL/6 Mice 36 citations, February 2017 in “BMC Complementary and Alternative Medicine” Geranium sibiricum extract helps hair grow and is more effective than minoxidil but can be toxic in high concentrations.
research Hair Growth Promoting Effects of Geranium Sibiricum L Extract on Human Dermal Papilla Cells Under Glucocorticoid-Induced Stress Condition April 2014 in “The FASEB Journal” Geranium Sibiricum L extract may promote hair growth by increasing growth factors and decreasing inhibitory factors under stress.