Alopecia
"I have used the topical on my receding hairline. Twice a day- within two weeks I got a horrible headache that lasted 3 days.  Stopped treatment.  

Started again once a day this time. Same effect. About two weeks went by then got headache again. Stopped treatment. 

The second time, I used much less. Maybe a 1/2 Tbl total.   I weigh 115lbs."