What does the evidence show for CBG and neuroprotection?
In two mouse models of Huntington's disease, CBG reduced neuroinflammation and helped preserve neurons. These are early animal findings, not evidence of benefit in people; no human studies exist.
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.