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FAQ

Explore quick answers to the most commonly asked research questions regarding peptides storage, purity and manufacturing.

Peptides are short chains of amino acids, usually under 50, used to study specific pathways in controlled research. Proteins are much larger, folded structures that perform complete biological functions. Peptides allow more targeted, precise experimentation.

Most peptides are created using solid-phase peptide synthesis (SPPS), where amino acids are added step-by-step, then purified (often by HPLC) and verified through analytical testing like mass spectrometry to confirm identity and purity.

Peptide purity reflects how much of the sample is the intended sequence versus synthesis by-products. Higher purity improves experimental reliability, consistency, and reproducibility, which is why transparent COAs and analytical data are important.

Lyophilized peptides should be stored at –20°C or below, protected from light and moisture, and can remain stable long-term. Once reconstituted, they should be refrigerated, used promptly, or aliquoted and frozen to prevent repeated freeze–thaw cycles.

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