I’ve been trying, for the past 3 or 4 months, to grow my hair faster. It doesn’t grow but 1/4 inch a month. I use a variety of hair growth oils every other day, and no matter what I do, I can’t seem to get that tingly sensation in my scalp that hundreds of reviewers of these oils are making claims of getting; along with claims of extreme hair growth. Does this mean I am not getting enough blood circulation to my scalp or something? Also, my hair at the ends is real thin. So tell me, why do I never have a tingly scalp, no matter what I put on it?