Insights into Peptide Testing

Fact-Check of Important Claims in the Interview:

• Claim: Peptides are stable at room temperature for years.

  • Fact-Check: Most lyophilized (freeze-dried) peptides are highly stable. However, stability is peptide-specific. While HGH is famously stable in powder form, others may degrade faster. Most manufacturers recommend 2-8°C for long-term storage to be safe. Source: Journal of Pharmaceutical Sciences.

• Claim: Shaking does not damage peptides.

  • Fact-Check: For small peptides (like BPC-157 or GLP-1s), this is accurate. They lack the complex tertiary folding of large proteins (like monoclonal antibodies) that can be disrupted by shear stress. Source: Protein Science Archive.

• Claim: Benzyl alcohol-free water is safe for 28 days if refrigerated.

  • Fact-Check: This is a high-risk recommendation. While the peptide won’t degrade, the lack of a preservative (benzyl alcohol) means any bacteria introduced by the needle will multiply. USP <797> guidelines generally recommend a much shorter shelf life for preservative-free solutions. Source: USP General Chapter <797>