Specific queries for people already holding a test result, report, procedure recommendation or buying decision. That is where intent stops being theoretical.
Vigamaxx is marketed as a men's prostate-wellness and vitality supplement. It should be evaluated as a supplement, not as a diagnostic test or treatment for BPH or prostate cancer.
Saw palmetto is a specific botanical ingredient. Vigamaxx is a branded supplement formulation. The comparison only makes sense after checking the current Vigamaxx label.
Buy from a seller that identifies the exact product, current label, batch or lot information, expiry date, return policy and responsible business entity.
There is no basis to use Vigamaxx as a way to diagnose, rule out or monitor prostate cancer.