Zhenoluten
Ovary Extract Bioregulator · Ovarian Cytomax · Женолутен
Zhenoluten is the Cytomax female-reproductive complex. Ovagen is not the ovary cytogen on the official NPCRIZ poster - Ovagen is sold as a liver cytogen. The name Ovagen is the most damaging false friend in this catalog.
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.
- Sexual / hormonal3.5/10
Reproductive organ map. Not TRT and not an oncology protocol.
Compound card
- Sequence
- Female reproductive system (ovary-focused Cytomax) peptide complex (mixture, not a single CAS)
- Class
- Khavinson Cytomax capsule complex (Female reproductive system (ovary-focused Cytomax))
- Formula
- Polypeptide extract (Ovarian tissue <10 kDa)
- Status
- Not FDA-approved · research use
How it works
Zhenoluten (A-15) is a Cytomax natural polypeptide extract from the ovarian tissue of young calves, targeting human granulosa cells, theca cells, and ovarian stromal cells to restore age-silenced gene expression governing estradiol synthesis, FSH receptor sensitivity, and follicular development. Female ovarian aging follows a more abrupt trajectory than any other organ system: from age 35–38, ovarian reserve declines measurably; from 45–50, the follicular pool is largely depleted and the hypothalamic-pituitary-ovarian (HPO) axis loses its negative feedback anchor as estradiol production collapses, causing FSH to surge and triggering perimenopause and menopause.
Zhenoluten delivers short peptide signals (<10 kDa) from bovine ovarian tissue. These peptides enter granulosa and theca cell nuclei to reactivate transcription of: CYP19A1 (aromatase - the enzyme converting androgens to estradiol in granulosa cells), StAR (steroidogenic acute regulatory protein, the rate-limiting step in progesterone biosynthesis in theca cells), FSH receptor (FSHR) - allowing granulosa cells to better respond to pituitary FSH during late folliculogenesis, and AMH (anti-Müllerian hormone, a marker of ovarian reserve). Critically, Zhenoluten does not provide exogenous estrogen or progesterone - it works upstream at the gene regulation level.
In Khavinson's female reproductive longevity system, Zhenoluten (A-15, ovarian) is paired with Thyreogen (A-2, thyroid) since thyroid hormones are essential co-regulators of ovarian steroidogenesis - subclinical hypothyroidism exacerbates ovarian aging and menstrual irregularity. The full female hormonal stack adds Endoluten (A-8, pineal/melatonin) since circadian disruption strongly impairs HPO axis function via melatonin's direct effect on GnRH pulsatility.
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
Someone in a Western warehouse looked at “Ovagen” and wrote “ovaries” on a spreadsheet. The Cytomed cytogen list says Ovagen - liver. Zhenoluten is the actual female-reproductive Cytomax. If you came here from a blog that pairs Ovagen with ovaries, you were reading a mistranslation that we are not going to repeat.
The Khavinson ovary/uterus logic is aging reproductive tissue and the peptide signals that keep granulosa/theca identity. It is not HRT, not FSH, not clomiphene, not progesterone.
Livagen (KEDA) is the other liver synthetic; Svetinorm is liver Cytomax. Keep female reproductive and hepatic aisles labeled like a grown-up.
Caveats
Female reproductive 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. Pregnancy, unexplained bleeding, and hormone-sensitive cancers are specialist territory. A capsule is not estradiol.
Full 41-map: Khavinson bioregulators index · Bioregulator stacks
Research Use Cases
- ✓Ovarian Cytomax identity (Ovagen is liver, not ovary)
- ✓Not menopausal or fertility treatment
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 35. Morning dosing preferred. Combine with Thyreogen (A-2) for thyroid-ovarian axis support. |
| Full Monthly Course (Perimenopause / Ovarian Support) | 2 capsules (20 mg) | Twice daily for 30 days (120 caps = 2× 60-cap boxes) | Bi-annual 30-day courses for perimenopausal adults, irregular cycles, low AMH/ovarian reserve, or menopausal symptom management. Core female hormonal stack: Zhenoluten (A-15) + Thyreogen (A-2) + Endoluten (A-8) for ovarian-thyroid-circadian HPO axis restoration. |
| Intensive / Female Hormonal Restoration Protocol | 2 capsules (20 mg) | Twice daily, repeated monthly | For perimenopause symptom management, premature ovarian insufficiency support, or fertility preparation protocol. Physician supervision required. Not a replacement for HRT. Max: 4 caps/day (40 mg). |
Administration
Zhenoluten: Not a research vial vs Oral capsule
- No dedicated cytogen on the 12-SKU NPCRIZ poster (none - Ovagen on NPCRIZ is the liver cytogen (EDL), not an ovary peptide). Do not invent one.
- There is no pharmaceutical-extract SKU that is this capsule in a syringe.
- Do not pair a Zhenoluten capsule with an “Ovagen ovary vial.” Ovagen is liver cytogen. There is no ovary cytogen on the 12-SKU list. This is not HRT.
- Zhenoluten 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 Zhenoluten: swallow the capsule with water. No reconstitution step and no 5 mg cake.
- Female-reproductive Cytomax (Cytomed A-15). Ovagen is not a Cytomax and is not an ovary peptide on the official poster - it is liver.
- Course-based (10–30 days, a few times a year in manufacturer folklore), not a daily forever drug.
- Ovary / female reproductive 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
Perimenopause / Ovarian Aging (Ages 35+)
LowTargets granulosa cell aromatase (CYP19A1) and theca cell StAR gene expression - restoring the ovary's own estradiol and progesterone synthesis capacity rather than providing exogenous hormones.
Female Fertility Preservation Protocol
LowUsed in fertility preparation protocols alongside Thyreogen (A-2) to optimize the thyroid-ovarian hormonal environment. Physician-supervised use in fertility medicine.
Safety & Considerations
Natural glandular extract (Cytomax) from bovine ovarian tissue, <10 kDa. Contains no estrogen, progesterone, or FSH/LH. Meets European/Russian veterinary standards. Physician oversight required for any known hormone-sensitive condition. 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
Zhenoluten is a Cytomax capsule complex from Female reproductive system (ovary-focused Cytomax). 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
Hormone-sensitive conditions belong with a gynecologist, not a capsule page.
Frequently Asked Questions
Oral capsule or injection?▼
Is Ovagen the ovary peptide?▼
Is this HRT?▼
Pair peptide?▼
Capsules?▼
Is Zhenoluten hormonal?▼
What is the best stack for perimenopause?▼
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
📚 Related Articles
Get Zhenoluten from Vita-Stream - a distributor for Khavinson-line oral capsules. No reconstitution math on a Cytomax bottle.
Affiliate link · Full review