What is the difference between USP grade and industrial grade methylene blue?

1 company with a published answer

  1. Methylene Blue Ultra

    “USP grade methylene blue is purified to 99%+ standards with verified absence of heavy metals (arsenic, lead, mercury, cadmium). Industrial grade contains heavy metal contamination dangerous for human consumption. Only USP-grade should be used for supplementation.”

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urn:readyscan:corpus:buyer-question:methylene-blue-ultra-q138843584-answer-a10005d93fd42888bb4b
Material fingerprint
fnv1a64:8a402e60087cb82d
Membership fingerprint
fnv1a64:ed1c4914e22358cd
Published
2026-10-29
Modified
2026-10-29
ready-scan-subjects/Q138843584
revision Q138843584:content:62f7322a177dccf9

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