CalcMyPeptide
Khavinson BioregulatorAlso known as: Pineal Gland Extract Bioregulator, Pineal Cytomax

Endoluten

Endoluten is universally regarded as the absolute crown jewel of the Khavinson Cytomax line. Extracted directly from the pineal glands of young animals, it represents the raw, natural predecessor to the synthetic powerhouse Epitalon. It is utilized in severe systemic aging protocols to force the profound restoration of the body's master clock—the pineal gland—permanently normalizing chaotic circadian rhythms, radically extending cellular lifespan, and heavily delaying the onset of menopause.

Reviewed by CalcMyPeptide Editorial Team
Last updated: April 2026Evidence: Moderate2 peer-reviewed citations

Quick Stats

Half-LifeMixture (variable)
Dose Range1-2 capsules/day
Frequency1-2× daily for 10-30 day cycles
Vial SizesN/A (oral)
BioavailabilityOral capsules
Year Developed1980s

Scientific Data

Molecular Formula
Polypeptide extract (Pineal tissue <10 kDa)
Molecular Weight
Mixture (<10 kDa)
PubChem ID

Mechanism of Action

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

Background & History

Endoluten is the natural pineal gland Cytomax extract — the natural counterpart to synthetic Epitalon.

Research Use Cases

  • Melatonin production restoration
  • Circadian rhythm normalization
  • Neuroendocrine function support

Dosing Protocol

Typical Dose1-2 capsules/day
Frequency1-2× daily for 10-30 day cycles
Half-Life~30 minutes (estimated)

Dosing Protocols

Mini-Course / General Preventive (1 box)

Dose
2 capsules (20 mg)
Frequency
Once daily for 10 days, 30 min before breakfast
Note: Standard 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)

Dose
2 capsules (20 mg)
Frequency
Twice daily for 30 days (120 caps = 2× 60-cap boxes)
Note: 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 Protocol

Dose
2 capsules (20 mg)
Frequency
Twice daily, repeated monthly
Note: For 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
Oral capsules (20-cap and 60-cap boxes)
Timing
Morning, 30 minutes before breakfast. Morning dosing resets the circadian cycle correctly.
Fasting Required?
Yes — inject on an empty stomach

Expected 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 Is It 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.

Interactions & Contraindications

May potentiate sedation. Standard Khavinson protocol.

Synergies & Common Stacks

Endoluten (natural pineal extract) and Epitalon (synthetic pineal peptide) target the same tissue — use Endoluten for broad pineal support, Epitalon for targeted telomerase activation.

Dosing Quick Reference

Endoluten— Dosing Guide
Dose Range
1-2 capsules/day
Half-Life
~30 minutes (estimated)
Frequency
1-2× daily for 10-30 day cycles
Route
Oral
Khavinson Bioregulatorcalcmypeptide.com

Frequently Asked Questions

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, Anisimov VN "Peptide preparation Epithalamin increases the lifespan of rats".” Mechanisms of Ageing and Development (2001). PMID: 11470138
  2. 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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Recommended SourceOral Bioregulator

Get Endoluten from Vita-Stream — the comprehensive distributor for authentic Khavinson bioregulators. Oral capsules, no injections required.

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