Thanks Onwards...what you say makes sense...i know it's not a black and white method of testing...it reveals so much health-wise.
I see the hair as a 'map' of what's been going on in the body, as it grows it collates info...so as you say, everything is indicated...excreted and circulation of metals, minerals etc.
It's used in allopathic medicine mainly for drug testing..which are absorbed as well as excreted. However they use hair as it's a constant record of everything going on in the body...it doesn't lie or give false negatives and positives like serum!