Most Harm Reduction tests for deadly Fentanyl and Xylazine are a scam. Most display no cutoff level at all, and all but ours requires dilution of the substance. Our tests are the only on Earth to offer:
* FENTANYL CUTOFF LEVEL TO 1ng/mL
* XYLAZINE CUTOFF LEVEL TO 25ng/mL
* NO DILUTION REQUIRED
ALL "COMPETITORS" CUTOFF LEVELS:
10 - 500ng/mL for FENTANYL
500 - 2000ng/mL for XYLAZINE
FULL DILUTION REQUIRED