By "crown of my hair" do you mean the top of your head? Because mine gets thick as hell on top, need it cut every 3 weeks, but I've always had fast growing thick hair. V may be keeping any aging effects from slowing down the growth rate, hard to tell - but I started taking V at 51, now 57, and hair still grows like a weed, especially on top. My barber has to intentionally thin it out for me to make the time in between cuts last longer. One thing nobody mentioned is amount of gray - my level (only on the temples) has stayed constant since starting on V, but genetics might play a bigger role there - my Dad's hair is still mostly dark brown like mine, no balding - and he's 87.