EPITHALON lab tests

Epitalon is a synthetic tetrapeptide, Ala-Glu-Asp-Gly (AEDG), CAS 307297-39-8 (PubChem CID 219042), C₁₄H₂₂N₄O₉, molecular weight 390.35 g/mol. Four common amino acids are cheap and easy to synthesise, and short peptides are difficult to tell apart by purity testing alone, so an HPLC-only certificate is close to uninformative about identity: a vial can report high HPLC purity while containing something else entirely. A batch-matched mass spectrum reading near 390.35 Da is the document that establishes what was bought.

That makes Epitalon more verifiable than most of the bioregulator category — one sequence, one formula, one mass. Epithalamin, the pineal gland extract it was modelled on, has no single mass to confirm: an extract is defined by its source tissue and preparation method rather than by a molecular weight, so a certificate for an extract cannot mean what a certificate for Epitalon can. The advantage is conditional; it holds only if somebody actually runs the mass spectrum.

• Spelling: Epitalon, epithalon and epithalone (also written AEDG peptide) name the same four residues. A spelling difference is not a product difference, a price comparison run on one spelling misses listings filed under the others, and a page presenting the spellings as distinct items with distinct claims is a red flag.
• CAS 307297-39-8 on the label. A CAS matching nothing, or no CAS at all, indicates a listing assembled from other listings.
• Extract confusion: epithalamin is a pineal extract, not a thymic one. The thymic member of the same family is thymalin, a different compound with a different research line; a product page describing epithalamin as thymus-derived has crossed the two.
• Evidence provenance: the telomere-elongation data come from cultured human fetal fibroblasts, and several of the most-cited human findings were collected on epithalamin, the natural preparation, rather than on the four-residue peptide. A verified vial of Epitalon confirms identity; it does not transfer that evidence.
• Fill quantity: on a cheap-to-synthesise short peptide the economic pressure sits on fill quantity rather than on substitution, so net content deserves its own line separate from purity.