A whole chapter of unfamiliar names

About a third of The Complete Guide to Peptides is a chapter most Western readers will find completely unfamiliar. It is titled "Introduction to Bioregulators" and lists names like Bronchogen, Cardiogen, Cartalax, Chonluten, Livagen, Pinealon, Thymalin, Vesugen and Zhenoluten.

If you have never heard of any of these, you are not alone. They come from a research tradition that developed largely in Russia and the former Soviet Union, and that most Western doctors have never been trained in. That makes this chapter genuinely interesting, whatever you conclude about it.

What a bioregulator is supposed to be

The book defines bioregulators as peptides or peptide-like compounds that act on specific organs or systems, often derived from animal tissue such as the thymus, liver or brain. The idea is that each targets one organ and helps restore its normal function.

The naming follows a pattern once you know it. The first part points to the organ:

  • Cardiogen: heart
  • Bronchogen: airways
  • Cartalax: cartilage
  • Thymalin: thymus (immune system)
  • Pinealon: pineal gland
  • Livagen: liver
  • Vesugen: blood vessels (vascular)
  • Retinalamin: retina

Where the idea came from

The research tradition behind these compounds is usually traced to work in Soviet military medicine starting in the 1970s, most closely associated with the scientist Vladimir Khavinson and what later became the St Petersburg Institute of Bioregulation and Gerontology.

The early products were extracts from animal organs. Thymalin came from the thymus, the gland that trains immune cells. Epithalamin came from the pineal gland. The idea was that each organ contained its own short signalling peptides, and that giving those extracts back could support the matching organ in the recipient, particularly in ageing or after stress.

Later, researchers in that tradition identified very short synthetic peptides, often just two to four amino acids long, which they proposed were the active ingredients. Epitalon, the four amino acid peptide (Ala-Glu-Asp-Gly) that the book discusses at length, was designed as a synthetic version based on epithalamin.

The intriguing claim

The most striking idea in this tradition is how these peptides are proposed to work. The book says bioregulators work at a more fundamental level than ordinary peptides, influencing which genes are switched on in a tissue.

The proposal from the Russian research group is that these very short peptides can enter cells, reach the nucleus and interact with DNA directly, nudging gene expression in a tissue-specific way. If true, that would be a fundamentally different mechanism from how most peptide hormones work (by binding receptors on the cell surface).

It is a bold hypothesis. It has not been widely replicated by independent labs outside that research tradition, and mainstream molecular biology has not adopted it. But it is a real scientific claim with published papers behind it, and it is worth knowing about if only so you can recognise it when it comes up.

The Epitalon story

Epitalon is the bioregulator that has crossed most into Western longevity culture, and the book gives it a detailed entry.

The main claim is that Epitalon activates telomerase, the enzyme that can rebuild telomeres, the protective caps on the ends of chromosomes that shorten as cells divide. Telomere shortening is one of the recognised hallmarks of ageing. The book also describes effects on melatonin production and circadian rhythm, which makes sense given its origin in pineal gland research.

Studies from the originating research group have reported telomerase activation in human cells in the lab and various effects in animals, including some reports of extended lifespan in rodents. There are also human studies from the same tradition in older adults.

What is missing is large, independent, placebo-controlled trials. And there is a thoughtful caveat that applies to anything claiming to activate telomerase: cancer cells use telomerase to become immortal. An intervention that switches on telomerase widely would need careful long-term safety data.

Oral peptides, and why that is surprising

One unusual feature of the bioregulator chapter is that most of these products are taken orally, as capsules. The book lists doses like 20 mg capsules, one or two, once or twice daily, for cycles of 10 to 30 days.

That is surprising, because most peptides are destroyed in the digestive system. The book itself says in its administration chapter that oral peptides are less common for exactly that reason. The argument from the bioregulator tradition is that the very short peptides involved (two to four amino acids) survive digestion better than longer ones. That is plausible in principle: very short peptides can be absorbed intact to some degree. Whether enough reaches the target organ to do anything is the open question.

Why it is worth knowing about

I find this chapter one of the most interesting in the book, for a reason that has nothing to do with whether bioregulators work.

It is a reminder that medical science has developed along different paths in different countries. Drugs like Semax and Selank, discussed elsewhere in the book, are approved medicines in Russia, developed through the same system, and virtually unknown to Western doctors. Cerebrolysin, a pig brain derived preparation the book lists, is used in stroke care in parts of Europe and Asia.

Knowing that there is a parallel research tradition, with its own compounds, its own mechanisms and its own publications, makes you a better reader. You can recognise the names, understand where they come from, and ask the right question: has this been independently tested outside the group that developed it?

For most bioregulators, the honest answer is not yet. That makes them an interesting chapter in the history of peptide science, and a set of hypotheses worth watching, rather than something with a proven place in your routine.


This series reviews a consumer book, not a clinical guideline. Many compounds it discusses are not approved for human use in most countries. Nothing here is medical advice or a recommendation to use any substance. Speak to a qualified clinician before starting anything.