Khavinson BioregulatorTarget: TestesReproductive

Testoluten

Testes Extract Bioregulator · Testicular Cytomax · Тестолутен

Testoluten is the Cytomax testicular complex. Testagen is the synthetic cytogen. This is Leydig/germ-tissue peptide logic, not testosterone cypionate and not hCG.

Not FDA-approved - research chemical

Quick answer

What it is: Testoluten is the Cytomax testicular complex.

Class and target: Cytomax (natural peptide complex) · Testes / male reproductive

Typical research dose: 1-2 capsules/day

Dosing details ↓What it is & the evidence on The Bioregulator Atlas →

Research summary, not medical advice.

Reviewed by Kymata Health Editorial Team
Last updated: August 2026Evidence: Low3 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.

Compound card

Sequence
Testes / male reproductive peptide complex (mixture, not a single CAS)
Class
Khavinson Cytomax capsule complex (Testes / male reproductive)
Formula
Polypeptide extract (Testicular tissue <10 kDa)
Status
Not FDA-approved · research use

How it works

Testoluten (A-13) is a Cytomax natural polypeptide extract from the testicular tissue of young calves, targeting human Leydig cells and Sertoli cells to restore age-silenced gene expression governing testosterone biosynthesis, sperm maturation, and seminiferous tubule function. Male testosterone levels decline approximately 1–2% per year after age 30 - a process called andropause or ADAM (androgen deficiency in the aging male). By age 70, most men have testosterone levels 30–60% below their peak, with downstream effects on muscle mass, bone density, libido, cognitive clarity, and cardiovascular health.

Testoluten delivers short peptide signals (<10 kDa) from bovine testicular tissue. These peptides enter Leydig cell nuclei to reactivate transcription of StAR (steroidogenic acute regulatory protein, the rate-limiting step in testosterone synthesis), CYP17A1 (the enzyme converting pregnenolone to testosterone precursors), and LH (luteinizing hormone) receptor density. In Sertoli cells, Testoluten reactivates FSH receptor expression and ABP (androgen-binding protein) production, supporting the testicular microenvironment for spermatogenesis. Critically, Testoluten does not provide exogenous testosterone - it restores the testicular Leydig cell's own capacity to respond to pituitary LH signaling.

In Khavinson's male health protocol, Testoluten (A-13) is combined with Libidon (A-16, prostate) for the complete male reproductive system stack, addressing both the production organ (testes) and the secondary reproductive gland (prostate) simultaneously.

Source: PMID: 11713572

Khavinson map

Canonical 41
Class
Cytomax (natural peptide complex)
Organ
Testes / male reproductive
Target
Testes
System
Reproductive
Sequence
Mixture / not a single CAS
Тестолутен

Used in bioregulator stacks

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

The Khavinson school

Testoluten is filed here as cytomax (natural peptide complex), targeting the testes / male reproductive. Khavinson's St. Petersburg group moved from organ extracts (Cytamins) to capsule complexes (Cytomaxes) to synthetic short peptides (Cytogens); most of the evidence comes from that one group, with little independent Western replication.

Read the full background, the proposed epigenetic mechanism, the literature limits, and how we count the canonical 41 on the Khavinson bioregulators index.

History of this molecule

Male-reproductive Khavinson products get bought by people who wanted TRT. Wrong aisle. The extract story is aging testicular tissue and spermatogenic epithelium, not 200 mg of ester per week. Testoluten is the complex; Testagen is the cytogen on the NPCRIZ list.

hCG, clomiphene, and exogenous T have labeled or guideline-shaped uses. This capsule does not. Fertility workups still start with labs and a urologist.

Caveats

Testis 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. Some English-language bottles carry a “V2” label. Vita Peptides, for example, labels its own house line V2 (15 mg per capsule vs 10 mg in V1). No study compares V1 and V2 outcomes, and neither label is the subject of 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

  • ✓Testicular Cytomax vs Testagen
  • ✓Not a testosterone or spermatogenesis protocol

Dosing

PhaseDoseFrequencyNotes
Mini-Course / General Preventive (1 box)2 capsules (20 mg)Once daily for 10 days, 30 min before mealsStandard Khavinson mini-course (20 caps). Repeat every 6 months from age 40. Morning dosing preferred to align with natural testosterone circadian peak. Pair with Libidon (A-16) for complete male reproductive stack.
Full Monthly Course (Andropause / Low Testosterone)2 capsules (20 mg)Twice daily for 30 days (120 caps = 2× 60-cap boxes)Bi-annual 30-day courses for men with confirmed low testosterone or andropause symptoms (fatigue, muscle loss, libido decline). Core male stack: Testoluten (A-13) + Libidon (A-16) + Glandokort (A-17) for full HPG+HPA male hormone optimization.
Intensive / Male Hormonal Restoration Protocol2 capsules (20 mg)Twice daily, repeated monthlyFor significant testosterone decline, male infertility workup support, or post-TRT restoration. Physician supervision required. Not a testosterone replacement - works upstream on Leydig cell LH receptor and StAR gene expression. 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.

Testoluten: 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 Testoluten. 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 (Testagen (testicular cytogen)), a different SKU. There is no pharmaceutical-extract SKU that is this capsule in a syringe.
Advantages
  • The defined-sequence vial in this aisle is the cytogen pair (Testagen (testicular cytogen)), a different SKU.
  • There is no pharmaceutical-extract SKU that is this capsule in a syringe.
  • Reconstitute Testagen if you bought the cytogen vial. A Testoluten-labeled cake is a mis-ID. This is not a 200 mg/week ester.
Considerations
  • Testoluten 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 Testoluten: swallow the capsule with water. No reconstitution step and no 5 mg cake.
  • Testicular Cytomax (Cytomed A-13): Leydig / germ-tissue complex. Not testosterone cypionate, not hCG, not Libidon (prostate).
  • Course-based (10–30 days, a few times a year in manufacturer folklore), not a daily forever drug.
Considerations
  • Testis 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 Testoluten as oral capsules with water, about 30 minutes before meals. Testicular Cytomax complex, not Testagen powder, not testosterone cypionate, and not hCG. Pair: Testagen. Libidon is prostate. Get labs. Fertility workups still start with a urologist.

Timeline

Days 1 - 14
Leydig cell gene expression restoration initiated. Pituitary-testicular axis resensitization begins.
Month 1–3
Improved morning energy and libido. Better muscle recovery from training. Testosterone may show early normalization trend.
Month 3–6
Sustained testosterone production capacity improvement. Improved body composition markers in populations with andropause symptoms.

Who it is for

Andropause / Age-Related Testosterone Decline

Low

Targets Leydig cell StAR and LH receptor gene expression - the upstream drivers of testosterone biosynthesis capacity. Not a hormone - works by restoring the cell's own production capacity.

Male Fertility Support

Low

Targets Sertoli cell FSH receptor and ABP expression for improved seminiferous tubule microenvironment. Used in fertility preparation protocols alongside Libidon.

Safety & Considerations

Natural glandular extract (Cytomax) from bovine testicular tissue, <10 kDa. Contains no testosterone or anabolic androgens. Meets European/Russian veterinary standards. Not a banned performance-enhancing substance. Generally recognized as safe.

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

Testoluten is a Cytomax capsule complex from Testes / male reproductive. 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

Not exogenous androgen. Capsules skip vial math.

Synergies & Common Stacks

Complex vs cytogen. Confirm Testagen sequence on the COA.

Frequently Asked Questions

Oral capsule or injection?▼
Testoluten 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 (Testagen), not this complex. Do not run BAC math on a capsule SKU. Not testosterone cypionate, not hCG. Libidon is prostate.
Testoluten vs Testagen vs testosterone?▼
Testoluten = Cytomax complex. Testagen = synthetic cytogen. Testosterone cypionate = hormone replacement. Three different tools.
Will my total T double?▼
That is not a published, labeled effect of this SKU. Get labs.
Vs Libidon?▼
Libidon is prostate. Testoluten is testis. Do not mix glands because both are “male.”
Reconstitution?▼
Not Testoluten. Testagen vials if purchased as cytogen powder.
Is Testoluten testosterone?▼
No. Testoluten is filtered to <10 kDa and contains no testosterone, DHEA, or androgenic hormones. It delivers gene-regulatory signals to Leydig cells to restore their own LH-mediated testosterone biosynthesis capacity. It is not a hormone replacement and will not cause the suppression of natural production that exogenous testosterone does.
What is the best stack for andropause?▼
The Khavinson male hormone optimization triple stack: Testoluten (A-13, testicular production) + Libidon (A-16, prostate health) + Glandokort (A-17, adrenal/DHEA). This addresses the full HPG (hypothalamic-pituitary-gonadal) and HPA axis components of male hormonal aging.

References

  1. Khavinson VKh et al. “Tissue-specific effects of peptides.” Bulletin of Experimental Biology and Medicine (2001). PMID: 11713572
  2. Khavinson VKh, Lin’kova NS, Tarnovskaya SI “Short peptides regulate gene expression.” Bulletin of Experimental Biology and Medicine (2016). PMID: 27909961
  3. Khavinson VKh, Morozov VG “Peptides of pineal gland and thymus prolong human life.” Neuroendocrinology Letters (2003). PMID: 14523363

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Where to get itOral bioregulator

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Testovive is Vita-Stream's US-made testes bioregulator (Vita Peptides' own house line), a different product from Testoluten. No trial has tested it.

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Get Testoluten from Vita-Stream, which sells the GARMONIA Cytomax and Cytogen oral capsules. No reconstitution math on a capsule bottle.

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