Once the drug is metabolized and products wind up in in a hair strand, I get it that that portion of strand just gets put in storage, so to speak, once the hair is no longer being formed, and that physical section just keeps getting pushed along.
How long does it take for marijuana products to appear in hair? Ie, how many days of use are earmarked befor the hair strand “dies?”
Also, how well does hair show the drug levels compared to blood or urine?
ETA: “Earmarked.” Heh.