Gold nanoparticles (AuNPs) are clinically proven to increase brain health. MediGOLD consists of 20 parts per million of 99.99 pure AuNPs colloidally suspended and dispersed in pure pharmaceutical grade sterile water. The AuNPs in MediGOLD are elemental, non-ionic, non-reactive, tiny (averaging just a few atoms per nanoparticle - less than 3 nanometers in size), and are all 100 bioavailable. MediGOLD delivers 300 micrograms of Gold nanoparticles per adult serving. MediGOLD Brain Booster is engineered to enhance brain function by providing an esoteric trace nutrient, Gold, to the physical brain for improved cognition, clarity, focus, memory, creativity, and abilities. This is 500mL (16.9 Fl Oz) of MediGOLD Brain Booster in a clear glass bottle - triple sealed for your protection.You are purchg 500mL (16.9 Fl Oz) of MediGOLD Brain Booster true colloidal Gold AuNP nutritional supplement in a clear glass bottle triple sealed for your protection. Made in the USA Fair Trade Vegan Halal Kosher Cruelty-Free Keto Gluten free Alcohol free Sugar free, Hypo-Allergenic, Sodium free and GMO free. Average Gold nanoparticle size is less than 3 nanometers small enough to be 100 bioavailable. No added color, no chemicals, no preservatives, no stabilizers. Safe 20 parts per million concentration of ultra-pure (99.99 pure) gold as 100 bio-available Gold nanoparticles in pharmaceutical grade pure water. MediGOLD Brain Booster utilizes the proven power of 99.99 pure colloidal Gold nanoparticles in a formula developed and perfected by our Biochemist and former NASA scientist our satisfied customers can be found in the USA, Canada, Mexico, Australia, England, Ireland, Italy, India, Spain, Brazil, Scotland, China, Hong Kong, Thailand, Croatia, the Philippines, Singapore, Taiwan, S. Korea, Japan, New Zealand, Germany, United Arab Emirates, Turkey, Saudi Arabia, and elsewhere.