Zptropin

All PeptideBull products are tested to ≥99% purity by HPLC. A Certificate of Analysis (COA) is available for every product.

No. All products sold on PeptideBull are strictly for in-vitro laboratory and scientific research use only. They are not for human or veterinary consumption.

Store lyophilized (freeze-dried) peptide at −20°C. Once reconstituted with bacteriostatic water, refrigerate at 2–8°C and use within 28 days. Avoid repeated freeze-thaw cycles.

Add sterile bacteriostatic water slowly along the inner vial wall and gently swirl — do not shake. Allow the peptide to dissolve naturally. Use appropriate volume for your research concentration requirements.

PeptideBull ships domestically within the USA via USPS and UPS. Orders are processed within 1–2 business days. Discreet, professional packaging is used on all shipments.