Mountain Well-Being Colloidal Gold is electrically produced in small batches utilizing state-of-the-art technology and pure 24k gold. The solution is 20ppm. It is very stable, contains uniform particles of the smallest possible size (as small as .0008 microns), and has the proper ruby red color. Laboratory tested and guaranteed to be pure, potent and free of additives. There are no side effects or drug interactions with our supplements and they can safely be used on a daily basis if desired. Quality and satisfaction are 100% guaranteed!