Khavinson BioregulatorTarget: Pineal glandEndocrine

Endoluten

Pineal Gland Extract Bioregulator · Pineal Cytomax · Эндолутен

Endoluten is the Cytomax pineal complex - the epiphysis peptide fraction Cytomed still sells as capsules. It is not Epitalon. Epitalon is the synthetic tetrapeptide (AEDG) isolated from the pineal line; Epithalamin is the older injectable pineal extract.

Not FDA-approved - research chemical
Reviewed by CalcMyPeptide Editorial Team
Last updated: August 2026Evidence: Moderate7 peer-reviewed citations
Typical research dose
1-2 capsules/day
Frequency
1-2× daily for 10-30 day cycles
Half-life
Mixture (variable)
Common vials
N/A (oral)
CAS
N/A (biological extract)
Molecular weight
Mixture (<10 kDa)

Use-case scores

0–10 against the evidence we have, not a gym ranking. Hidden domains do not apply here.

  • Longevity / aging3.5/10

    Khavinson-school tissue peptide. Single-lab concentration after haircut. Not a Western Phase 3 geroprotector.

  • Cognition3.5/10

    Nervous/pineal/visual aisle in the school. Not a stroke or dementia label.

Compound card

Sequence
Pineal gland (epiphysis) peptide complex (mixture, not a single CAS)
Class
Khavinson Cytomax capsule complex (Pineal gland (epiphysis))
Formula
Polypeptide extract (Pineal tissue <10 kDa)
Status
Not FDA-approved · research use

How it works

Endoluten (A-8) is a Cytomax natural polypeptide extract derived from the pineal glands of young calves - often called the single most important bioregulator in the entire Khavinson system. The pineal gland is the master timekeeper of the body, governing circadian rhythm via melatonin and orchestrating the entire neuroendocrine-immune cascade through its connections to the hypothalamus-pituitary axis. After roughly age 40, the pineal gland undergoes calcification and progressive atrophy, causing melatonin to drop by 50–70% and disrupting virtually every hormonal rhythm downstream.

Endoluten delivers over 40 short peptide fragments (<10 kDa) extracted from bovine pineal tissue. These peptides enter cell nuclei via epigenetic modulation - relaxing tightly wound heterochromatin - and reactivate the transcription of age-silenced genes responsible for melatonin synthesis, antioxidant production, and immune signaling. In animal longevity studies by Khavinson and Anisimov (2001), Epitalon (the synthetic tetrapeptide derived from Endoluten's active core) extended median lifespan by 24% in female rats.

Endoluten is the natural broad-spectrum version of that same pineal signal. By restoring the melatonin rhythm - rather than simply flooding the body with exogenous melatonin - it re-establishes proper circadian control over cortisol, growth hormone, insulin-like growth factor-1, and the adaptive immune response. Many experienced practitioners rank Endoluten alongside Vladonix (thymus) as the two most critical modules of any longevity stack.

Source: PMID: 12937225

Khavinson map

Canonical 41
Class
Cytomax (natural peptide complex)
Organ
Pineal gland (epiphysis)
Target
Pineal gland
System
Endocrine
Sequence
Mixture / not a single CAS
Pair
Epitalon (AEDG) and Pinealon (EDR)
Эндолутен · Cytomed A-8

Used in bioregulator stacks

Manufacturer-style organ combinations - not FDA protocols. Every name is a live leaf.

The Khavinson school

Vladimir Khatskelevich Khavinson (1946–2024) spent five decades at what became the St. Petersburg Institute of Bioregulation and Gerontology arguing a simple, stubborn idea: aging is, in part, a failure of tissue-specific peptide signals, and those signals can be restored. The first products were not “peptides” in the Instagram sense. They were Cytamins - polypeptide fractions isolated from a named organ of young animals. Later commercial refinements of those fractions are sold as Cytomaxes (Cytomed / NPCRIZ): still mixtures, still oral capsules, still defined by the source organ rather than a single sequence. When the group identified short active motifs inside those mixtures, they synthesized them as Cytogens - di-, tri-, and tetrapeptides with a one-letter code (KE, AEDG, KED, EDR, KEDP, and so on).

That three-layer stack is the whole map. Cytamin / pharmaceutical extracts (Thymalin, Epithalamin, Cortexin, Retinalamin, Prostatilen) are the clinic-era injectables registered in the former Soviet pharmacopeia. Cytomaxes are the capsule complexes Cytomed still lists as a 21-SKU organ line. Cytogens are the defined synthetics. English-language educators, including Brenden Henry’s public writing at Peptide Science Institute, add a further commercial distinction - later analog SKUs (N-acetyl, amidate, “V2” complexes) sold as more stable or more diverse than the original Cytomed lots. That last layer is a product taxonomy, not a Khavinson paper. We describe it so readers are not gaslit by three bottles with the same organ name. We do not reproduce paid Peptide Mastery protocols, Precision Cell Method language, or anyone else’s course IP.

Full Cytamin → Cytomax → Cytogen map, literature limits, and how we counted 41

The mechanism Khavinson published is epigenetic, not receptor-agonist in the GLP-1 sense. Short peptides are claimed to enter nuclei, interact with DNA/histones, and reopen tissue-specific transcription that condensed with age (heterochromatin → euchromatin). Reviews in the Bulletin of Experimental Biology and Medicine and Neuroendocrinology Letters (PMID 14523363, 15677927, 23888677) are the citable core. Complementary GI pharmacology is not mystical: di- and tripeptides are PEPT1/LAT substrates, which is why oral capsules are even a conversation. What is not established in Western Phase 3 programs is organ-by-organ disease treatment, telomere reversal as a clinical endpoint, or the manufacturer claim that Cytomax is “a third stronger” than Cytogen. Those are NPCRIZ marketing sentences.

Khavinson’s group published hundreds of papers, many in Russian, many in the same journal family. That is a real literature. It is also a literature with limited independent Western replication, small n, and a habit of using one review PMID as a stamp on every organ. On this site a leaf earns its organ story, its Cytomax↔Cytogen pair, its sequence if it has one, and an honest sentence about what has not been shown. Reconstitution math belongs on cytogens sold as vials. Cytomax capsules do not get a fake 5 mg vial.

The 41 we treat as canonical are the 21 Cytomaxes on the public e-peptide/Cytomed list, the 12 Cytogens on that same commercial line (including Vesilut, which Western catalogs often drop), plus eight historically load-bearing molecules that sit beside the capsule SKUs: Epitalon, Vilon, Thymogen, Livagen, Cortagen, Prostamax, Thymalin, and Epithalamin. Honluten, Cortexin, Retinalamin, Prostatilen, Thymulin, N-acetyl-epitalon-amidate, Pinalex, and the GPL Man / GPL Femme kits are covered as adjacent - same school or same storefront, not padded into a fake 41.

Public English-language teaching (including Brenden Henry at peptidescienceinstitute.com) is cited as context, not copied. Paid Peptide Mastery / Peptide Salvation text stays theirs.

History of this molecule

The pineal gland is where the Khavinson story is loudest in the West, and that is a distortion. Epitalon (AEDG) got the telomerase headlines. Endoluten is what the commercial Cytomax line actually ships for the epiphysis: a complex of short peptides isolated from the pineal of young animals, standardized as a capsule geroprotector rather than a single sequence. In the Institute’s organ map it is the natural counterpart to both Epitalon and Pinealon - melatonin-adjacent and chromatin-adjacent at once.

Khavinson’s pineal work sits on a Soviet gerontology bet that the epiphysis is a master clock, not a melatonin vending machine. Epithalamin, the pharmaceutical extract, was used in Russian clinical practice for decades before AEDG was synthesized. Endoluten is the oral-complex descendant of that extract tradition. When English-language YouTube collapses “the pineal peptide” into one powder, three products get flattened: the injectable extract (Epithalamin), the capsule complex (Endoluten), and the tetrapeptide (Epitalon). They share an organ. They are not interchangeable SKUs.

The Institute of Bioregulation framed pineal peptides as restoring melatonin rhythm and the transcriptional program of pinealocytes that fades with age. That is the published claim family (Neuroendocrinology Letters, Bulletin of Experimental Biology and Medicine). Independent Western trials of Endoluten-the-capsule do not exist in the way a Wegovy program exists. What exists is a long Russian extract literature plus a later synthetic literature that people cite as if it were the capsule.

Brenden Henry’s public PSI essays treat the pineal line as the flagship of Khavinson epigenetics - chromatin accessibility, not a GPCR agonist. Fair as a teaching frame. The paid course then goes peptide-by-peptide on downstream genes. We cite the public papers and the Cytomed pairing. We do not paste the course.

Caveats

Pineal Cytomax is not a US dietary-supplement monograph and not a drug. The tissue-extract model means lot-to-lot composition is a fingerprint, not a single CAS number. English-language “V2” bottles that claim more peptide diversity are a later commercial layer (mass-spec marketing from specific brands) - they are not Khavinson’s 1990s papers. Animal-source capsules are inappropriate if the reader has a religious or allergy constraint on the source species. None of this replaces care for the actual organ disease.

Full 41-map: Khavinson bioregulators index · Bioregulator stacks

Research Use Cases

  • ✓Pineal Cytomax identity vs Epitalon vs Epithalamin
  • ✓Not a melatonin-restoration drug or circadian NDA

Dosing

PhaseDoseFrequencyNotes
Mini-Course / General Preventive (1 box)2 capsules (20 mg)Once daily for 10 days, 30 min before breakfastStandard Khavinson mini-course: 1 pack (20 caps). Repeat every 6 months for anti-aging maintenance. Morning dosing is preferred to align pineal reset with the circadian light cycle.
Full Monthly Course (ages 40–50)2 capsules (20 mg)Twice daily for 30 days (120 caps = 2× 60-cap boxes)Bi-annual 30-day courses from age 40–45; 3 courses/year after 50. Endoluten is the cornerstone of the Khavinson longevity stack. Combine with Vladonix (A-6) for the immune arm and Ventfort (A-3) for the vascular arm.
Intensive / Advanced Longevity Protocol2 capsules (20 mg)Twice daily, repeated monthlyFor significant age-related neuroendocrine decline or post-illness recovery. Many practitioners combine monthly Endoluten Cytomax courses with periodic injectable Epitalon (synthesized tetrapeptide) cycles for synergistic telomere support. Max: 4 caps/day (40 mg).

Administration

Route / form
Oral capsules - swallowed with water. Cytomed Cytomaxes ship as capsules, not sublingual tablets and not lyophilized research vials.
Timing
Morning, with water, about 30 minutes before meals (empty stomach).
Empty stomach?
Yes - Empty stomach - about 30 minutes before meals. Cytomed boxes sometimes print “with food” because they are labeled as supplements; the manufacturer user-guide preference is before meals for absorption.

Endoluten: Not a research vial vs Oral capsule

Not a research vial
Bioavailability
Not applicable. This Cytomax SKU is not sold as a lyophilized research vial. There is no SubQ F% because Cytomed does not ship this complex as a cake.
Dose note
Do not reconstitute Endoluten. No BAC-water chart, no 5 mg vial math, no units-on-a-U-100 conversion. The defined-sequence vial in this aisle is the cytogen pair (Epitalon (AEDG) and Pinealon (EDR)), a different SKU. Epithalamin is the pharmaceutical extract in this organ family (clinic-era injectable or other non-capsule form), not this Cytomax.
Advantages
  • The defined-sequence vial in this aisle is the cytogen pair (Epitalon (AEDG) and Pinealon (EDR)), a different SKU.
  • Epithalamin is the pharmaceutical extract in this organ family (clinic-era injectable or other non-capsule form), not this Cytomax.
  • A 5 mg or 10 mg vial labeled Endoluten is almost always Epitalon powder with a Cytomax name taped on. Reconstitution belongs on Epitalon / Pinealon, not this capsule.
Considerations
  • Endoluten is an oral capsule complex. It is not a 5 mg lyophilized research vial.
  • Inventing recon math for a zero-mg Cytomax vial is how people inject the wrong product.
  • Not an official Cytomed sublingual tablet, IM ampoule, or eye drop either.
Oral capsule
Bioavailability
Not quantified in a Western PK study. Official Cytomed form is a swallowed capsule. PEPT1/LAT transport is class biology for short peptides, not an F% for this tissue mixture.
Dose note
Typical Cytomed labeling: 1–2 capsules daily in 10–30 day courses, swallowed with water about 30 minutes before meals (empty stomach). Manufacturer protocol, not an FDA label. Some boxes print “with food” because they are labeled as supplements; the timing copy we use is before meals.
Advantages
  • Official form for Endoluten: swallow the capsule with water. No reconstitution step and no 5 mg cake.
  • Pineal Cytomax (Cytomed A-8): the capsule complex people actually swallow. Not melatonin replacement and not interchangeable with Epitalon powder.
  • Course-based (10–30 days, a few times a year in manufacturer folklore), not a daily forever drug.
Considerations
  • Pineal Cytomax is a peptide mixture / lot fingerprint, not a single CAS. English “V2” bottles are a later commercial layer, not a Khavinson RCT.
  • Russian school literature is not an FDA organ-disease label.
  • Third-party lingual SKUs exist in the wild. We do not claim sublingual as the official Cytomed Cytomax form.
Recommendation: Swallow Endoluten as oral capsules with water, about 30 minutes before meals. It is the pineal Cytomax complex, not Epitalon, not Pinealon, and not Epithalamin ampoules. If the bottle is a lyophilized cake, the identity is already wrong. Pair: Epitalon (AEDG) and Pinealon (EDR). Russian pineal-extract literature is not an FDA telomere label.

Timeline

Days 1–10 (mini-course)
Melatonin rhythm begins to reset. Many users report deeper sleep within the first week.
Month 1–2
Improved sleep architecture, better morning cortisol peak, reduced nighttime waking.
Month 3–6
Systemic neuroendocrine optimization. Downstream hormonal improvements (GH pulse, immune surveillance). Long-term: telomere length preservation.

Who it is for

Longevity / Systemic Anti-Aging

Moderate

The flagship Khavinson bioregulator - the pineal gland is the master neuroendocrine regulator. Decades of Russian data show significant lifespan extension in animal models.

Circadian Rhythm / Sleep Restoration

Moderate

Restores endogenous melatonin rhythm at the gene-expression level - fundamentally different from taking exogenous melatonin supplements.

Post-50 Neuroendocrine Decline

Moderate

Ideal for adults over 50 experiencing hormonal dysregulation, poor sleep, immune decline, or reduced stress resilience.

Safety & Considerations

Natural glandular extract (Cytomax) from bovine pineal tissue, <10 kDa. Strict European/Russian veterinary standards required. No hormones present. Widely used in Russian gerontology protocols since the 1980s. Generally considered safe; individual sensitivities may occur.

Regulatory & Legal Status

FDA Status (US)
Research Only
WADA Status (2026)
Not Listed

Not currently on the WADA 2026 Prohibited List. Policies may change - verify before competition.

Classification

Research Chemical

US Compounding: Not eligible / not available

⚠️ This information is for educational purposes only and may not reflect the most current regulatory updates. Always verify with official FDA, WADA, and jurisdiction-specific sources before use.

Limits of current evidence

  • Cytomax SKUs are oral capsules. Do not run SubQ reconstitution math on a zero-mg vial.
  • Lot-to-lot composition is a fingerprint, not one sequence.
  • This site will not treat the named organ disease from a peptide page.
  • English-language V2 / analog bottles are a later commercial layer, not a Khavinson RCT.

Verdict

Endoluten is a Cytomax capsule complex from Pineal gland (epiphysis). It is not the paired cytogen, not a 5 mg research cake, and not a US supplement monograph. The organ story is in the dossier on this page.

Interactions & Contraindications

Sedation folklore is not a labeled interaction. Capsules skip SubQ recon.

Synergies & Common Stacks

+ Epitalon →

Complex vs tetrapeptide. Not a telomerase combo protocol.

Appears in goal guides

Goal guides are maps, not clinic protocols. A mention here is not a treatment plan.

Anti-Aging Longevity Stack

Golden Triangle (Endoluten, Vladonix, Bonomarlot) plus Epitalon and GHK-Cu, with FOXO4-DRI and MOTS-c as experimental add-ons.

View Protocol →

Immune Optimization Protocol

Thymic cytomax (Vladonix) plus Endoluten and Bonomarlot, then Thymosin Alpha-1 and Selank, with LL-37/KPV as acute experimental tools.

View Protocol →

Frequently Asked Questions

Oral capsule or injection?▼
Endoluten is a Cytomax oral capsule: swallow with water, about 30 minutes before meals. It is not a 5 mg lyophilized research vial and not an official Cytomed sublingual tablet (third-party lingual SKUs exist in the wild). If you want a defined-sequence powder to reconstitute, that is the cytogen pair (Epitalon / Pinealon), not this complex. Do not run BAC math on a capsule SKU. Epithalamin is the pineal extract (historically IM). Epitalon is the tetrapeptide people actually reconstitute.
Is Endoluten the same as Epitalon?▼
No. Endoluten is the Cytomax pineal peptide complex (a mixture from the epiphysis). Epitalon is synthetic Ala-Glu-Asp-Gly. Epithalamin is the older injectable pineal extract. Same organ story, three products.
Why do vendors put Endoluten in a reconstitution calculator?▼
They should not. Cytomax SKUs are capsules. If the bottle is a lyophilized 10 mg vial labeled Endoluten, the identity is already wrong - that is usually Epitalon powder with a Cytomax name taped on.
What is the Cytomed pair?▼
Endoluten (complex) pairs with Epitalon (AEDG) and Pinealon (EDR). Pinealon is the neuronal/pineal tripeptide; Epitalon is the telomerase-famous tetrapeptide.
Did Khavinson prove Endoluten reverses biological age?▼
He published geroprotective and pineal-extract data. “Reversed Horvath clock by N years” is a later English-language claim about specific peptide combinations and specific investigators - not an Endoluten FDA label. Treat clock studies as separate from this SKU.
How does Endoluten differ from Epitalon?▼
Endoluten is the natural broad-spectrum extract from bovine pineal glands (~40 peptide fractions). Epitalon is a synthesized, concentrated tetrapeptide (AEDG - Ala-Glu-Asp-Gly) representing the most active core of that extract. Endoluten is oral and gradual; Epitalon is typically injected for faster, more targeted action. Many practitioners use both: Epitalon for intensive reset courses, Endoluten for long-term maintenance.
Why take it in the morning if it supports sleep?▼
Endoluten resets the pineal gland's biological clock gene expression. Taking it in the morning with light exposure teaches the gland to correctly initiate melatonin secretion 12–14 hours later at night - restoring the natural rhythm rather than artificially forcing sleep.

References

  1. Khavinson VKh, Bondarev IE, Butyugov AA “Epithalon peptide induces telomerase activity and telomere elongation in human somatic cells.” Bulletin of Experimental Biology and Medicine (2003). PMID: 12937225
  2. Khavinson VKh “Peptides and ageing.” Neuroendocrinology Letters (2002). PMID: 12374906
  3. Khavinson VKh et al. “Tissue-specific effects of peptides.” Bulletin of Experimental Biology and Medicine (2005). PMID: 15677927
  4. Khavinson VKh, Lin’kova NS, Tarnovskaya SI “Short peptides regulate gene expression.” Bulletin of Experimental Biology and Medicine (2013). PMID: 23888677
  5. Khavinson VKh, Morozov VG “Peptide regulation of aging: from experimental studies to clinical practice.” Advances in Gerontology (2003). PMID: 14523363
  6. Khavinson VKh, Anisimov VN “"Peptide preparation Epithalamin increases the lifespan of rats".” Mechanisms of Ageing and Development (2001). PMID: 11470138
  7. Khavinson VKh et al. “"Bioregulatory peptides prolong the lifespan of Drosophila melanogaster".” Bulletin of Experimental Biology and Medicine (2012). PMID: 22808850

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