Estrogen is made from excess testosterone and the thing that does it is blocked when you use ,Grape Seed Extract, "look it up" even have it in some Walmarts or drugstores.. Just make sure you shower since after a run or workout the sweat in your hair has a testosterone byproduct that chokes of the hair follicle making you go bald. That is why bald men have shiny heads, the chemical that dries there causes the skin to be like scar tissue and also chokes off the hair pores. Don't use a fancy shampoo or conditioner but instead use a clarifying shampoo and it strips the scalp of all chemicals and that byproduct. Use that maybe twice a week and use even DAWN dish soap. You can use the fancy shampoos for a date or night out but I'd stick to one time a week and you'll also notice you head will feel cooler from that insulating dried on layer of sweat and oil allows your brain to shed heat easier so you'll be more calm. I studies this a lot and even if it's the leaf it works better more of the active ingredient, and they later found out but didn't change the packaging since that is what the customers were looking for.