This is an ad-free article. To make a contribution to help us keep our most widely-read articles ad-free (and to help cover the costs of our work doing independent consumer goods testing), click here. Thank you. For those new to the Lead Safe Mama website: Tamara Rubin is a multiple-federal-award-winning independent advocate for childhood … Continue reading I heard that urine and hair tests for heavy metals (including Lead) were not considered “real” or “useful” results. Why is this?