Peptide Knowledge Base

Independent testing standards, supply‑chain transparency, and best‑practice guidelines for peptide researchers and clinicians.

Testing Standards

Industry-standard analytical methods and acceptance criteria for peptide quality verification.

  • Purity ≥ 98% (HPLC/UPLC)
  • Dosage accuracy ± 5%
  • Endotoxin < 0.5 EU/mL (LAL assay)
  • Heavy metals (Pb, As, Cd, Hg) < 10 ppm
  • Sterility < 100 CFU/mL (USP <100>)
  • Identity confirmation via LC-MS/MS

Independent Testing Labs

Third-party laboratories providing transparent, unbiased testing and vendor verification.

  • Finnrick AnalyticsIndependent vendor rating system (A-E grades), HPLC purity verification, dosage accuracy testing
  • Janoshik AnalyticalPublic LC-MS/MS results, stability testing, comprehensive batch certificates

Trusted Peptide Suppliers

Vetted suppliers for Western peptides with rigorous quality standards and third-party testing.

Peptide Partners

Choose Peptide Partners, a provider that guarantees both exceptional purity and peptides compliant with USP <85> endotoxin standards, including retatrutide, tirzepatide, and BPC-157. Our commitment to safety goes beyond industry standards; protecting your research.

Bioregulator Suppliers

Specialized providers for Khavinson bioregulators and peptide complexes.

Vita-Stream

Comprehensive supplier of authentic Khavinson bioregulators offering the widest selection of organ-specific peptides for systemic optimization. Known for competitive pricing, rapid worldwide shipping, and carrying hard-to-find bioregulators including all three generations. Their extensive catalog covers everything from foundational longevity peptides (Epitalon, Thymalin) to specialized organ support, making them a one-stop shop for complete bioregulator protocols.

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