Simply Methylene Blue 400mcg is a simple water & alcohol solution of high purity methylene blue without any added excipients or fillers. No glycerin or preservatives. Drops per bottle, 470.This product is a research grade chemical stain and is not a nutritional supplement. It is not intended as, or promoted for, human consumption. The links below are provided as a start for your personal research.This ready to use, research grade solution is made from our 99% Pure USP Methylene Blue in a distilled water solution providing 400 mcg per drop.This is a high purity USP grade methylene blue.Known as a heterocyclic aromatic chemical compound, with a chemical formula of C16H18ClN3S and a molar mass of 319.85 g/mol. It appears as a solid, odorless, dark green powder when held at room temperature. However, when mixed with water, the green powder dissolves and yields a characteristic blue solution that is extensively used in medicine and medical research.For more information and some cited research visit the following.wikipedia. en.wikipedia.org/wiki/Methylene_blue http://www.drugs.com/mtm/methylene-blue-oral-and-injection.htmlhttp://www.ncbi.nlm.nih.gov/pmc/articles/PMC3087269/Article: ResearchGate.net search for article Lest we forget you — methylene bluehttp://www.fda.gov Search methylene blueRayPeatForum.com - a forum where you can ask members about their personal experiences with methylene blue.