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All our peptides are tested to a minimum of 98% purity, with most reaching 99%+ purity. Full HPLC and MS analysis is included with every Certificate of Analysis.

Peptides are lyophilized (freeze-dried) and sealed in glass vials under inert gas. Cold-pack shipping is included for orders over $100. Each vial is labeled with lot number, purity %, and expiry date.

Yes. Research institutions and labs ordering over $500 qualify for wholesale pricing. Contact our research team at research@liferesetpeptides.com for a custom quote.

Most peptides reconstitute well in bacteriostatic water (BW). Hydrophobic peptides may require a small amount of acetic acid (0.1%) or DMSO before adding BW. Product-specific guidance is included with each order.

Lyophilized peptides stored at -20°C remain stable for 12-24 months. Once reconstituted, stability is typically 4-8 weeks at 4°C. Avoid freeze-thaw cycles after reconstitution.

No prescription is required. Our products are sold exclusively for laboratory and research use. They are not intended for human or veterinary use, and are restricted to qualified researchers.