Testoluten_Dosage, benefits & legal status
Also known as A-13, peptide complex A-13, testes peptide bioregulator, Testoluten lingual
An animal-tissue extract for the testes, sold as capsules, and unrelated to testosterone.
Common vial size is what vendors typically sell, not a recommendation. Enter your own vial in the calculator.
What is Testoluten?
Plain language first. The technical label stays, but it never stands alone.Overview
A capsule made from calf testicular tissue. It contains no testosterone despite the name, and no published human trial supports the reproductive claims.
Cytomax peptide fraction A-13, extracted from bovine testicular tissue. Contains no androgen. Proposed mechanism is tissue-specific gene expression modulation in Leydig and Sertoli cell populations. Distinct from Testagen, the synthetic KEDG tetrapeptide, whose evidence base is separate and also thin.
What it's used for
An oral tissue extract marketed for testosterone support, sperm production and male reproductive health.
How does Testoluten work?
What it does in the body, and where.Testoluten is a mixture of small peptides pulled from testes tissue, usually from calves under a year old.
- 01Drawn from calf testicular tissueA Cytomax, meaning an extract rather than a synthesised peptide. It contains no hormone and no steroid.
- 02It is not testosterone and does not contain anyThe name suggests otherwise and it is worth being clear. The proposal is that the peptides prompt existing testicular cells to work better, not that anything hormonal is being supplied.
- 03Testagen is the synthetic counterpart, and this library has itTestagen is the Cytogen version, a defined tetrapeptide with the sequence KEDG. The extract and the synthetic peptide are different products, and the clinical claims made for one do not transfer to the other.
What else is it used for?
Each use below carries its own evidence level. Approved means regulators have cleared it for that purpose. Investigational means it is in trials. Early research means it is being studied and is not established.
- Supporting testicular function and testosterone production, taken orallyResearch only
- Male fertility, sperm count and motilitynone
- Age-related decline in male reproductive functionnone
The published record
0
Papers and trials about Testoluten
Europe PMC was searched on 12 October 2026 and returned nothing.
Counted from Europe PMC indexing, not read by a person.
At a glance
Four things to know about Testoluten
Evidence
Category
Healing and recovery
Common vial
Varies
Half-life
Nothing published
How much, and do you cycle it?
The range, and whether you take breaks.Research only, daily, in 10-30 day courses. Daily for 10 to 30 days, then a long break, repeated a few times a year Community practice
The course pattern comes from Russian practice. Suppliers describe the effect as lasting six to twelve months after a course, which is a claim from the sellers rather than a measured result.
Nothing publishedNo figure
No half-life has ever been published for any of the Russian bioregulator peptides, in people or in animals. The research behind them, mostly from one group in St Petersburg, measures effects on tissue, gene activity and lifespan. None of it measures how long the peptides last in a body.
You can compare this against the whole library to see where it sits.
What does it cost?
Typical dose and cost, in plain numbers.Testoluten is not injected
It is taken by mouth (oral). Sold as capsules, so there is nothing to reconstitute and the calculator does not apply. No dose has been established in a published human study.
How do you store it?
Before mixing, and after.Room temperature. Cool, dry, out of light.
Testoluten is taken as a pill or capsule. Keep it in its original container at room temperature, away from heat, humidity, and direct sun. No fridge or mixing needed. Check the expiration date on the bottle.
What are the side effects and cautions?
Known cautions and warnings for this compound.Who should avoid it
- Pregnancy or breastfeeding
- A known allergy to bovine products
- Any condition affecting the testes, where an unstudied extract is not a substitute for treatment
Stop and get help
- Any allergic reaction
- Any new or worsening symptom involving the testes
Common effects
- No side effects are reported by the manufacturer.
- Nobody has run the kind of monitored trial that would find them, so the absence is a gap rather than a finding.
Where this page says nothing is established, that means nobody has studied it, not that a compound is safe.
Is Testoluten approved?
And where the numbers on this page come from.No. Testoluten is not approved for any use, anywhere. It is sold labeled for laboratory research only, and there is no legal route to buy it for human use.
- Approval statusResearch only
- RouteBy mouth (oral)
- Checked24 August 2026
- DoseFrom community reports. No regulator or trial established this dose.
- Vial sizeFrom what vendors typically list; not a recommendation.
- SourcesNone traced yet.
What has happened recently
Not approved for any medical use in the US, Europe or Australia. Sold as a dietary supplement in some markets and as a research item in others. Registration in Russia does not carry over.
You can compare this against the whole library, or read how to check a seller.
What else is like Testoluten?
Others in Taken without a needle, side by side.If you're weighing Testoluten, it's worth reading Tetrapeptide-21, Thyreogen, and Trofinetide (Daybue) in the same class.
An animal-tissue extract for the testes, sold as capsules, and unrelated to testosterone.
- Dose
- Research only
- How often
- Daily, in 10-30 day courses
A topical peptide for firmer, plumper skin.
- Dose
- Serum, per product
- How often
- Daily
An animal-tissue extract for the thyroid, sold as capsules.
- Dose
- Research only
- How often
- Daily, in 10-30 day courses
An approved oral treatment for Rett syndrome, built from the first three amino acids of IGF-1 with one methyl group added.
- Dose
- 5,000 to 12,000 mg twice daily by weight (label)
- How often
- Twice daily
Guides for this compound
- mcg vs mg: The Peptide Dosing Mistake to Avoid
Your vial says mg and your protocol says mcg. Here is the conversion and how to check it.
- How to Read a Peptide COA
What the purity number does and does not tell you, and how to spot an edited report.
- How to Vet a Peptide Vendor
Independent COAs, HPLC purity, and the red flags that mean walk away.
Sources
No primary source has been traced for this compound yet. Treat everything on this page as unverified until one is. How we grade evidence