bimatoprost was recently thought to be linked to hair growth.
researchers noticed its positive effects on eyelash growth in individuals using it for its intended purpose (glaucoma treatment).

Human Hair Culture
First, researchers collected scalp skin samples from 15 healthy individuals (one woman and 14 men). Anagen hair follicles were then dissected from the samples and stored in sterile petri dishes prior to experimentation.
Next, the isolated follicles were moved to a 24-well plate contained either bimatoprost (10, 100 and 1000 nM) or prostamide antagonist AGN 211336 (1μM). In addition, some follicles were placed in the control solution of 0.001% dimethyl sulfoxide (DMSO).
Photographs were taken of the bulbs every 24 hours for nine days, and they were measured with the use of an inverted microscope. As results show, most of the scalp follicles grew well in the bimatoprost solution, and some even showed the synthesis of of new epithelial hair fiber and root sheath.
In addition, 70% of the follicles increased in length for the 9-day study while also maintaining their anagen morphology.