I decided to run another experiment - same style as my past supplement tests for better blood flow down there, but this time focusing on a category, "load/volume boosters". I started on October 3rd. These are the supplements that promise bigger and better loads. I tested two products: Popstar...

During the last 5 weeks, I’ve been conducting a test. Once a day, I took an over‑the‑counter amino acid supplement said to boost blood flow: 1,000 mg of L‑arginine and 750 mg of L‑citrulline. These so‑called “blood‑flow vitamins” are supposed to increase circulation everywhere — including the...