Why PureSource Methylene Blue Is Different?

Methylene Blue Is Not All The Same

Many methylene blue suppliers provide little information beyond concentration and bottle size.

For researchers seeking consistency, that leaves important questions unanswered:

  • Where was the raw material sourced?

  • What purity standard was used?

  • Has it been tested for elemental impurities?

  • Is every batch documented?

  • Can the composition be verified?

At PureSource Research, those questions are answered before a product is released.

USP Grade Raw Material

Our methylene blue is prepared using USP-grade methylthioninium chloride sourced from an established European supplier.

USP (United States Pharmacopeia) standards represent one of the most widely recognised quality benchmarks for pharmaceutical raw materials.

Elemental Impurity Testing

Every raw material batch is supplied with testing against elemental impurity specifications including:

  • Lead (Pb)

  • Arsenic (As)

  • Cadmium (Cd)

  • Mercury (Hg)

Documentation is retained as part of our batch traceability system.

4% Concentration

Most commercially available methylene blue solutions are supplied at 1%.

PureSource Research supplies a 4% solution, providing researchers with greater flexibility while maintaining the same documented sourcing and preparation standards.

No Unnecessary Additives

Our formulation contains:

  • Distilled water

  • Plant-derived vegetable glycerin

  • USP-grade methylene blue

Nothing else.

No alcohol.
No formaldehyde.
No preservatives.

Research History

First synthesised in 1876 by Heinrich Caro, methylene blue has accumulated one of the most extensive research histories of any synthetic compound.

Published research has investigated methylene blue across areas including:

  • Mitochondrial function

  • Redox chemistry

  • Cellular energy metabolism

  • Antimicrobial photodynamic research

  • Neurobiology

  • Antimalarial research

Selected references:

  • Atamna H et al. PMID: 20847448

  • Rojas JC et al. PMID: 22172690

  • Oz M et al. PMID: 19428958

  • Wainwright M et al. PMID: 9460820

Documentation Standard

Every batch is supplied with:

  • Certificate of Analysis

  • Batch traceability

  • Preparation records

  • Supplier documentation

For PureSource Research, documentation is not an optional extra.

It is the minimum acceptable standard.