Understand what you're studying

High-performance liquid chromatography (HPLC) separates a sample into its components to quantify the proportion of the target peptide relative to synthesis by-products, giving a precise purity percentage for each batch.

A COA is an independent lab report confirming a specific batch's purity, and where applicable, identity testing such as mass spectrometry. Every BioBlend batch is tested before release — request the COA for any product from its product page.

Lyophilized (freeze-dried) peptides should be stored at -20°C and protected from light and moisture. Once reconstituted with bacteriostatic water, most peptides should be refrigerated and used within the timeframe noted on the product page.

Reconstitution should follow standard laboratory technique: slowly inject bacteriostatic water down the side of the vial to avoid disrupting the peptide structure, then gently swirl (don't shake) until fully dissolved.

No. All BioBlend products are strictly for in-vitro laboratory research and are not evaluated or approved for human or animal consumption, diagnosis, or treatment of any condition.

Research peptides are generally legal to purchase in the U.S. for legitimate laboratory research when sold and used strictly as research chemicals, though regulations can vary by compound and jurisdiction. This isn't legal advice — see our research-use disclaimer for full terms, and confirm your institution's own compliance requirements.

Every order ships in discreet, unbranded packaging with cold-chain materials to preserve compound integrity, and dispatches within 24 hours of payment confirmation. Delivery typically takes 2–5 business days.

Checkout runs over an encrypted HTTPS connection, and payments are processed through Stripe, a PCI-compliant payment processor — your card details are never stored on our servers.

We collect only what's needed to fulfill and ship your order. Account passwords are stored hashed, never in plain text, and we don't sell customer data. See our privacy policy for the full breakdown of what's collected and why.

Contact us and we'll respond within one business day. Unopened products in original packaging can be returned within 14 days of delivery — see our shipping & returns policy for details.