When CVS was longs the store brand had the 24/6% ratio it worked great at making big boners. I am taking the CVS brand now.
It is hard to find the 24/6% but you can get it at Walmart the brand is ginkoba. I have a bottle in my car I should be using that up first.
I have been told this is the only ratio that works for any effect. Gingko bilobo 50:1, 180mg per day, 24% flavoglycosides, 6% terpene lactones. Another good brand is Nutravite, often available at Walmart in a bonus pack of 420 capsules, for 20 bucks here in Canada.
I was using this stuff ten years ago, when it was strictly touted as a memory aid. I’m sensitive to it and find its great for memory, eq, headaches, and sleeplessness if used incorrectly. The price certainly doesn’t hurt.