Not a peptide · Research compound · For research purposes only
Not a peptide — small molecules & chemicals
Educational research guide only. To compare companies that offer Methylene Blue, open the Products page — scores belong to sellers, not this compound as a whole.
Not a peptide — small molecules & chemicals
Not a peptideMethylene blue is a small-molecule dye/redox agent sometimes sold alongside research peptides. Compare seller labeling and COAs here — research purposes only; not a peptide.
Also known as: MB · Methylthioninium chloride
Methylene blue (methylthioninium chloride) is a phenothiazine-related dye with a long pharmaceutical and laboratory history. Online “research” shops sometimes list it next to peptides. It is not a peptide. PurityWatch includes it so buyers can see which vendors stock it and what transparency signals exist.
Because methylene blue has both lab and regulated-medicine contexts internationally, scrutinize whether a seller is marketing research material vs making medical claims. Use vendor trust scores and lab uploads on PurityWatch for comparison only.
Not a peptide. Research-catalog discussion only. Not medical advice. PurityWatch does not sell methylene blue.
Companies on PurityWatch may list Methylene Blue as a compound they offer for research. Listing a compound does not mean it is approved for human use, and this entry is classified as not a peptide.
Many peptide vendors also sell non-peptide research chemicals. Listing it lets you compare those sellers without implying it is a peptide.
Do not assume equivalence. Regulatory status, purity, and intended use differ. PurityWatch only compares seller transparency signals.
