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.
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: 15677927
Khavinson map
Canonical 41Used 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
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. 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
- ✓Testicular Cytomax vs Testagen
- ✓Not a testosterone or spermatogenesis protocol
Dosing
| Phase | Dose | Frequency | Notes |
|---|---|---|---|
| Mini-Course / General Preventive (1 box) | 2 capsules (20 mg) | Once daily for 10 days, 30 min before meals | Standard 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 Protocol | 2 capsules (20 mg) | Twice daily, repeated monthly | For 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
Testoluten: Not a research vial vs Oral capsule
- 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.
- 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.
- 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.
- 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.
Timeline
Who it is for
Andropause / Age-Related Testosterone Decline
LowTargets 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
LowTargets 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
Not currently on the WADA 2026 Prohibited List. Policies may change - verify before competition.
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.
Appears in goal guides
Goal guides are maps, not clinic protocols. A mention here is not a treatment plan.
Frequently Asked Questions
Oral capsule or injection?▼
Testoluten vs Testagen vs testosterone?▼
Will my total T double?▼
Vs Libidon?▼
Reconstitution?▼
Is Testoluten testosterone?▼
What is the best stack for andropause?▼
References
- Khavinson VKh et al. “Tissue-specific effects of peptides.” Bulletin of Experimental Biology and Medicine (2005). PMID: 15677927
- Khavinson VKh, Lin’kova NS, Tarnovskaya SI “Short peptides regulate gene expression.” Bulletin of Experimental Biology and Medicine (2013). PMID: 23888677
- Khavinson VKh, Morozov VG “Peptide regulation of aging: from experimental studies to clinical practice.” Advances in Gerontology (2003). PMID: 14523363
- Khavinson VKh “"Peptide bioregulators - a new class of geroprotectors".” Bulletin of Experimental Biology and Medicine (2002). PMID: 12677266
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Get Testoluten from Vita-Stream - a distributor for Khavinson-line oral capsules. No reconstitution math on a Cytomax bottle.
Affiliate link · Full review