What does the evidence show for CBG and bacterial infection (MRSA)?
In laboratory (in vitro) tests and in a mouse infection model, CBG showed activity against methicillin-resistant Staphylococcus aureus (MRSA), including effects on the bacterial membrane and biofilms. These are preclinical findings only — not tested in humans, and not evidence of benefit as an anti-infective.
The grade weighs the claim as a whole, across every study our registry holds on the question. How good any one of those papers is remains a separate matter, and you can judge each on its own terms.