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Submitter notes that (prior to sending): 'Unusual fentanyl test strip activity - colorless 2nd line appearance-multiple test confirmation' ... 'storage - fentanyl close proximity, suspect fentanyl content'.
Erowid Note: a second line on fentanyl test strips in 2022 and 2023 is a NEGATIVE result with no fentanyl detected. We do not know what 'colorless 2nd line' means.
Sample acquired May 2022.