Quality Standards
Quality. Purity. Performance. — Every product, every batch, every time.
Every product sold by Big Star Peptides undergoes rigorous independent testing to ensure the highest standards of purity, identity, and consistency. We work exclusively with accredited third-party laboratories to verify every batch before it reaches your research facility.
HPLC Analysis
High-Performance Liquid Chromatography confirms purity levels of ≥98% for all peptide products. Each chromatogram is reviewed by qualified analysts.
Mass Spectrometry
HPLC-MS confirms molecular weight and structural identity. Mass spectra are verified against theoretical values.
Certificate of Analysis
Every batch ships with full documentation. COAs available upon request for all products.
Cold Chain Storage
All lyophilized peptides stored below 0°C for long-term integrity. Constituted solutions stored at 2–8°C — never frozen. Cold chain maintained from synthesis to dispatch.