Most Harm Reduction tests for deadly Fentanyl are a scam. Most display no cutoff level at all, and all but ours requires dilution of the substance. Our test is the only test on Earth to offer:
* CUTOFF LEVEL TO 1ng/mL
* NO DILUTION REQUIRED
BTNX RAPID RESPONSE'S CUTOFF: 200ng/mL (fatal) and requires full substance dilution
DANCESAFE CUTOFF: 10ng/mL (fatal) and requires full substance dilution