Echozen™ is a liquid dietary supplement formulated with Ginkgo Biloba, Alpha-Lipoic Acid, Vitamin B Complex, Zinc, Melatonin, and antioxidant-support nutrients. According to the official website, it is manufactured in the USA and independently quality tested, with approximately 30 servings per bottle. Current site information lists Echozen at as low as $49 per bottle, with a 60-day mo... en-us-en-echozen.com