Bioregulators
Khavinson Peptide Bioregulators — United States
Bioregulators are di-, tri- and tetrapeptides: the shortest compounds in the catalog, and the easiest to identify, because a four-residue sequence leaves a laboratory little room for ambiguity. The family comes from Vladimir Khavinson's group at the St Petersburg Institute of Bioregulation and Gerontology, where each was derived from a peptide fraction of one organ or tissue and named for it — Epitalon (AEDG) for the pineal gland, Cartalax (AEDL) for cartilage, Vesugen (KED) for vascular tissue, Pinealon (EDR) for cortex, Thymogen (EW) for thymus.
Telling them apart is a matter of sequence, and the sequence is on every page with the CAS number and formula. N-Acetyl Epitalon is a separate compound, not a brand of epitalon. Cerebrolysin and thymulin are longer and sit here because they are studied in the same tradition.
The English-language literature on this family is thinner than the Russian-language original, and the product pages do not pretend otherwise. What is not thin is the certificate: purity and measured content for every lot, against the batch code on the vial. Supplied strictly for laboratory research, shipped domestically within the United States.
In this category: Epitalon · Pinealon · Cartalax · Vesugen · Livagen · Crystagen · Thymogen
What to check before buying bioregulators compounds
Purity is half the number. A purity figure tells you what fraction of the powder in the vial is the compound on the label — it tells you nothing about how much powder is in the vial. A lot can assay at 99.8% purity and still be short against its labelled content.
Both numbers are published for every batch here: purity from HPLC, and measured mass against expected content. Match the batch code printed on the vial to the certificate before you rely on either.
