Ultimate Methylene Blue, 2 oz, Earth HarmonyEarth Harmony Ultimate Methylene Blue USP Grade. With Nano Liquid Gold. Quality Testing, High Purity. Vegan Friendly, Gluten Free, Non GMO, Sugar Free, No Additives or Fillers, Formaldehyde Free. Made in USA. Dietary Supplement. Methylene blue is a dye that has been used throughout history for a variety of scientific applications. Our specially formulated methylene blue is 99. 99% USP Pharmaceutical Grade, formaldehyde free, and made in the USA in
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