Man, these questions about speeding up the rate of growth for hair follicles never cease to cause me to lower my head and shake it slowly. As far as I know there is NO "supercharger" available for ANY hair. I could be wrong, but I doubt it. Hair is going to grow pretty damn slow--Probably slower than grass, and most of us would rather watch drag races or stock car races then watch hair or grass "race". My answer is the same: JUST DON'T CUT (shave) IT!