Frequently Asked Questions
Everything you need to know about our products, processes, and policies — answered clearly.
All Signal Peptide compounds are synthesised to >99% purity and independently verified by HPLC and mass spectrometry analysis. A full Certificate of Analysis is included with every order, showing the exact purity data and methodology used.
Yes — without exception. Every order ships with a batch-specific Certificate of Analysis containing HPLC purity data, molecular weight confirmation, mass spectrometry results, and full QC methodology. You can also request raw chromatogram files for your records.
No. All Signal Peptide products are sold strictly for in-vitro research and laboratory use only. They are not intended for human consumption, veterinary use, or clinical application. By purchasing, you confirm you are a qualified researcher handling compounds in an appropriate research setting.
Our current range includes: BPC-157, TB-500, Ipamorelin, CJC-1295, Tesamorelin, AOD-9604, Retatrutide, GHK-Cu, NAD+, MOTS-C, Semax, Selank, and DSIP. We regularly add new compounds based on emerging research. Sign up to our newsletter to be notified of new additions.
All peptides are lyophilised (freeze-dried) for maximum stability during transit. Orders are dispatched in temperature-controlled packaging with appropriate insulation and cold packs where necessary. Outer packaging is discreet and professional, with no product-identifying markings.
Orders are dispatched within 48 hours of payment confirmation. UK delivery typically takes 1–2 business days via tracked courier. International delivery times vary by destination. You will receive a tracking number once your order has been dispatched.
Yes. We ship to a wide range of countries. International customers are responsible for ensuring compliance with their local import regulations regarding research chemicals. Please check your country's rules before ordering. We ship with full customs documentation.
Lyophilised peptides should be stored at -20°C for long-term stability (up to 24 months). Short-term storage at 4°C is acceptable for periods of up to 4 weeks. Once reconstituted, store at 4°C and use within 28 days. Avoid repeated freeze-thaw cycles, which degrade compound integrity.
The appropriate reconstitution solvent depends on the specific peptide. Most peptides reconstitute well in sterile water for injection (WFI) or bacteriostatic water. Hydrophobic peptides may require a small amount of acetic acid or acetonitrile. Full reconstitution guidelines are provided in your CoA and on the product page.
We stand behind every product. If you're unsatisfied with the quality of your order, contact us within 14 days of receipt and we'll arrange a replacement or full refund. For damaged or missing items, please contact us within 48 hours of delivery with supporting photos.
Yes. We offer invoice-based ordering for research institutions, universities, and established laboratories. Contact our team with your institution details and required compounds to arrange account setup. Volume discounts are also available for regular orders.
Still have questions?
Our scientific team is here to help — whether it's technical, logistical, or research-specific.