Read the methods section. It is the only part that says whether the conclusion is allowed to exist.

If it needs three other compounds to notice, you have not tested the first one.

Loose evidence is not nothing, but a washout either side is the only reason to trust your own take.

Stupid question: how do you know whether what is in the vial matches the label at all?

The last ten percent of a taper takes as long as the first ninety. Nobody says so until you are in it.

Three questions kill most of the confidence in a thread like this: sample size, blinding, who paid.