Not yet investigated
What we have so far
Venous, not fingerstick — a capillary sample picks up lead from the skin. And blood lead misses the 90% stored in bone, which the skeleton releases for decades.
This star is on the map because the show intends to take the question apart properly — the trials, how it is actually tested, whether the thing sold is the thing studied. That work is not done yet, and nothing here should be read as a conclusion. When the investigation is published it will appear on this page.