6 Rings OxyXtreme — tested by NSF International (Ann Arbor, MI) and RIVM (Bilthoven, NL)

OxyXtreme (6 Rings), tested by NSF International (Ann Arbor, MI) and RIVM (Bilthoven, NL).
This is an independent test. Whoever paid for it had no interest in the answer.

Analyte	Found
deterenol	11 mg, per serving (1 capsule)

Thermogenic capsule labelled as containing N-isoproplynorsynephrine (sic on the label; a deterenol synonym). Cohen et al. 2021, Table 1: deterenol 11 ± 0.88 mg per capsule; no other prohibited stimulant detected. Sample purchased online April 2018.

Source: Peer-reviewed analysis

Measured and reported inside a peer-reviewed paper, which names its methods and reports what it found including the negatives. Cite the paper, and read its own account of how the samples were obtained.

Report: doi.org

This entry records one test of one sample. It is not a statement about any other batch, and it is not a safety assessment.