Janoshik Lab Founder Peter Magic Dispels Peptide Fragility Myths, Citing 95% Purity Rate

Peter Magic, founder of Janoshik Lab, a prominent peptide testing facility, has offered insights into peptide stability, handling, and testing methodologies, challenging common misconceptions within the community. According to a recent interview, Magic stated that peptides are far more robust than often believed, with 95% of tested samples passing purity standards.

Magic emphasized the durability of peptides, noting, "It’s not fragile, you can drop it, shake it etc. (fragility over exaggerated by people selling fake hgh)." He clarified that undissolved lyophilized peptide vials can last "a year+ in room temperature," "a few years in fridge," and potentially "a couple decades in freezer." This contradicts widespread beliefs about extreme fragility, often propagated to justify low-quality products.

Regarding reconstituted peptides, Magic advised using them "within a month," primarily due to the increased likelihood of contamination rather than potency degradation. He also suggested that sterile water "works fine" for reconstitution, deeming bacteriological water "somewhat overrated" for its perceived necessity. Janoshik Lab's data indicates that endotoxins and heavy metals are rare contaminants in peptides, with only a 3-5% failure rate for sterility tests.

Janoshik Lab has become a critical player in the burgeoning "gray market" for peptides, particularly for weight-loss drugs like GLP-1 agonists, which are often sourced from China for research purposes. The lab tests hundreds of samples weekly, assisting consumers and vendors in verifying product quality amidst a landscape where official regulatory oversight is often bypassed. This surge in demand has made peptides approximately 70-80% of Janoshik's business.