Metabolic, Endocrine & Reproductive Bioregulators

3 compounds · one shared backbone · one residue apart

Every compound in this range opens Lys-Glu-Asp and differs only in the residue that closes it. Glycine gives Testagen, proline gives Prostamax, tryptophan gives Pancragen. Three tissues, three terminal residues, and nothing else changed, which makes this the sharpest test of the tissue-assignment claim anywhere in the programme.

Specification Table

The metabolic, endocrine and reproductive range at a glance

Property	Value
Listings in this range	4 across vial and metered spray
Distinct compounds	3
Shared opening	Lys-Glu-Asp in all three
Testagen	Lys-Glu-Asp-Gly, 447.5 g/mol, assigned to reproductive tissue
Prostamax	Lys-Glu-Asp-Pro, 487.5 g/mol, assigned to prostate
Pancragen	Lys-Glu-Asp-Trp, 561.6 g/mol, assigned to pancreas
Mass span	447.5 to 561.6 g/mol
What separates them	One residue, at one position, at the C-terminus
Storage	2-8°C, protected from light. Do not freeze
Page type	Category hub, not a product page
Schema page type	CollectionPage
Meta robots	index, follow
Regulatory status	No approved human formulation for any compound in this range

What Does One Terminal Residue Actually Change?

Chemically, quite a lot. Glycine has no side chain at all, so Testagen ends in the most flexible residue available. Proline loops back onto its own backbone, so Prostamax ends in the most constrained one. Tryptophan carries a large aromatic indole ring, so Pancragen ends in the bulkiest and most hydrophobic of the three, and it is 114 daltons heavier than Testagen as a result.

Those three terminal residues cover most of the property space a single position can express: flexible, rigid and bulky. If tissue assignment is real, this is where it should show up. If the three behave alike in a shared assay, the claim has a problem, and it is a cheap problem to look for.

What Is a Prostate Bioregulator?

In the Khavinson framework a prostate bioregulator is a short peptide recovered from, or designed to match, sequences found in prostate tissue, on the premise that the tissue of origin carries regulatory information specific to it. Prostamax is that compound in this range, at Lys-Glu-Asp-Pro and 487.5 g/mol.

The premise is worth stating plainly because it is doing a lot of work. It holds that a four-residue sequence carries enough information to address one organ preferentially. That is a strong claim, and the fact that Prostamax and Pancragen differ by a single residue while being assigned to entirely different organs is exactly what makes it testable.

What Should the Certificate Show?

Purity by reversed-phase HPLC with the chromatogram, not a bare percentage. Identity by mass spectrometry against the calculated mass: 447.5 for Testagen, 487.5 for Prostamax, 561.6 for Pancragen. Those three numbers are far enough apart that a mass spectrum distinguishes them cleanly, which is not true everywhere in this family.

Water content matters for the lyophilised vials, since powder that has taken on moisture is not delivering the stated mass of peptide. For the metered spray, the fill date carries more information than the purity figure once the material has been sitting in aqueous buffer.

Which Formats Are Stocked?

Testagen, Prostamax and Pancragen are all available as 20mg lyophilised vials. Prostamax is also stocked as a metered nasal spray, and all three sit well under the rough 1,000 dalton ceiling where nasal transport falls away, so the format split reflects stocking rather than chemistry. The wider family sits under peptide bioregulators, and the format question is covered across thirty-seven products in the peptide nasal spray range.

Frequently Asked Questions

Compliance Statement

Every product in this range is supplied for laboratory research use only. None is a drug, a supplement or a food, none is intended for human or veterinary consumption, and none may be used for diagnostic or therapeutic purposes. No compound listed here holds an approved human formulation. Purchasers are responsible for handling these materials in an appropriate research setting and in accordance with the regulations that apply to them.