Epithalamin vs Epitalon: What Is the Difference?

Epithalamin and Epitalon are closely related yet chemically unique compounds.

Both act on the pineal gland’s regulatory pathways and share specific effects on the organism. But Epithalamin is a polypeptide extract derived from animal (bovine) pineal tissue. It consists of a blend of short regulatory peptides naturally produced by pineal gland tissue.

Epitalon is created through chemical peptide synthesis in a laboratory. It is made to mimic the natural multi-peptide extract Epithalamin; still, it is different. It is a four-amino-acid peptide (alanine, glutamic acid, aspartic acid, and glycine, also known as Ala-Glu-Asp-Gly or AEDG) designed based on research into Epithalamin. 

Accordingly, scientific publications have described them differently: Epithalamin as a natural peptide complex and Epitalon as a synthetic tetrapeptide. [1–4] 

When speaking about Nanopep products, it is crucial to understand this difference because Nanopep EPITIDE® and Nanopep EPITALON® Spray are based on different peptide ingredients.

What Is Epithalamin?

When in the 1960s–70s, it was discovered that the pineal gland was an important neuroendocrine organ involved in the body’s response to light/dark cycles; scientists started to investigate the gland mostly because of melatonin. They then noticed that the pineal gland changed with age and made a conclusion that it might contain and produce substances regulating aging.

Scientists extracted low-molecular-weight peptides from the animal pineal gland. This extract was named Epithalamin after the epithalamus, a small area of the brain that contains the pineal gland. In scientific literature, it is described as a polypeptide or peptide preparation obtained from the pineal gland of cattle and as a complex of peptides isolated from the pineal gland. [1,2]

This means that Epithalamin is not a single peptide made of strictly defined amino acids. It is a naturally derived complex containing multiple peptide components.

The Epithalamin ingredient used in Nanopep EPITIDE® is naturally derived rather than produced through chemical peptide synthesis.

What Is Epitalon?

Epithalamin, a naturally derived mixture of peptides, served as the basis for developing Epitalon. Epitalon, or Epithalon as it may be spelt in some scientific publications, is a single peptide, a distinct molecule composed of four amino acids connected in a specific sequence: Ala-Glu-Asp-Gly (AEDG).

Scientific publications by Khavinson and other scientists explicitly describe Epitalon as a “synthetic tetrapeptide.” In their studies, its defined sequence is identified as Ala-Glu-Asp-Gly. [3–5]

The key active component of Nanopep EPITALON® Spray is Epitalon, a synthetic four-amino-acid peptide composed of alanine, glutamic acid, aspartic acid, and glycine, which is clearly specified in the Nanopep product information.

How Are Epithalamin and Epitalon Related?

Epitalon is made in the likeness of Epithalamin. Researchers wanted to have a substance that is more reliable and precise than the original substance. Scientific literature describes Epitalon as a tetrapeptide constructed on the basis of a pineal peptide extract. [5] 

Researchers studied peptide complexes extracted from the pineal gland and subsequently identified a specific sequence of four amino acids (Alanine-Glutamic acid-Aspartic acid-Glycine) based on these pineal peptide extracts. They then synthesized Epitalon.

However, Epitalon should not be treated as a direct substitute for Epithalamin. Epitalon should not be described as “synthetic Epithalamin”, and Epithalamin should not be described as “natural Epitalon”. A closer way to describe it is that Epitalon wasn’t made from Epithalamin. Instead, it was synthesized from scratch based on what scientists learned when studying pineal peptide extracts.

Epithalamin vs Epitalon: Key Differences

To sum up, science draws a clear line between the two: Epithalamin is a natural peptide complex taken from the pineal gland, while Epitalon is a man-made, synthetic tetrapeptide.

Scientific References

1. Korkushko OV, Lapin BA, Goncharova ND, et al. Normalizing effect of the pineal gland peptides on the daily melatonin rhythm in old monkeys and elderly people. Adv Gerontol. 2007;20(1):74–85. PMID: 17969590. 
2. [Effects of an epiphyseal peptide preparation epithalamin on the melatonin-forming function of the epiphysis]. PMID: 1705453. The study describes Epithalamin as a polypeptide preparation obtained from cattle pineal tissue. 
3. Khavinson VKh, et al. Synthetic tetrapeptide Epitalon restores disturbed neuroendocrine regulation in senescent monkeys. Neuro Endocrinol Lett. 2001. PMID: 11524632. 
4. Khavinson VKh, Rybakina EG, Malinin VV, et al. Effects of short peptides on thymocyte blast transformation and signal transduction along the sphingomyelin pathway. Bull Exp Biol Med. 2002;133(5):497–499. PMID: 12420072. 
5. Sibarov DA, Vol’nova AB, Frolov DS, Nosdrachev AD. Intranasal Epitalon infusion modulates neuronal activity in the rat neocortex. PMID: 17217245. 
6. Khavinson VKh, Razumovsky M, Trofimova S, et al. Pineal-regulating tetrapeptide Epitalon improves eye retina condition in retinitis pigmentosa. Neuro Endocrinol Lett. 2002;23(4):365–368. PMID: 12195242.