Is there a maximum length of time between cutting the hair sample and submitting it?
Since the hair analysis was first used in forensic science, there is no time limit between the sample and when it is submitted. President Andrew Jackson’s hair sample was recently done to determine if he, was indeed, poisoned. His hair sample was over 100 years old. And, yes, he was poisoned with arsenic.
Our hair analysis lab requires a tablespoon of hair – they test for 19 toxins and 22 nutrients and use separate samples for that. Then they run it a second time to secure accuracy. You can’t beat that quality, so we are always disappointed when a client doesn’t send enough hair, but are reminded at how good these results are.