No mercury would be in your hair if you retain it inside your cells, which is where it pretty much stays once in. DMSA is dimercaptosuccinic acid and mops up extracellular mercury and does not cross the blood-brain barrier. DMSA is not a toy and if used improperly will cram your brain with more mercury. What I reccomend for you is to get Cutler's book to learn more and take Vit E 1000IU daily and a B-50 couple times a day and some vit C. Antioxidants will make you feel much better, believe me.