Peptides, plainly explained

What a peptide is

A peptide is a short chain of amino acids joined by peptide bonds. Chains in this catalogue run from three residues to several dozen. Below roughly fifty residues the molecule is conventionally called a peptide; above that it is usually called a protein.

How our catalogue is organised

We group lines by structural or pharmacological class rather than by outcome, because that is how research literature is indexed. Bioregulators are short Khavinson-series peptides. Blends are single vials containing more than one defined sequence. Ancillary compounds are the non-peptide materials researchers commonly stock alongside them.

Lyophilised powder

Most lines are supplied as a lyophilised, or freeze dried, powder. Lyophilisation removes water under vacuum and leaves a stable solid that tolerates shipping and storage far better than a solution. The powder volume in a vial is often very small; the stated mass, not the visible volume, is what has been filled.

Reading a certificate of analysis

A certificate ties one lot to one set of measurements. Look for the lot number, the analytical method, the measured purity and the identity data. If a supplier will not show you the certificate for the lot they are shipping, the purity figure on their website is unverifiable.

Research use only

All products on this site are supplied strictly for laboratory research use. They are not drugs, foods, cosmetics or medical devices, they are not for human or veterinary consumption, and Helix Bloom Labs makes no medical, therapeutic or physiological representation about them.