Testosterone Cypionate

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Testosterone Cypionate belongs to the steroids, which enormously accelerate the regeneration and extremely shorten the time to supercompensation. This allows many bodybuilders to reduce the break between training sessions.

The synthesis for testosterone cypionate was registered as a patent in 1941.
Testosterone Cypionate is an ester of the naturally occurring androgen testosterone. In the body the ester is completely cleaved by the esterase and the naturally occurring steroid is released. As testosterone cypionate has a very strong androgenic and anabolic effect, it is used by many users who want to build up a lot of strength and mass in the shortest possible time. It is very similar to testosterone enantate. In Europe, testosterone enantate is more widespread than testosterone cypionate. In the US testosterone cypionate is often used by bodybuilders.

After the intramuscular application of the oily testosterone cypionate solution, a slow release from the depot takes place. Testosterone cypionate is split into testosterone and fatty acid, the resulting testosterone is the active ingredient.

The mass increase is not only muscles, it is also caused by the increased water retention, the positive effect of which is a certain protection of the joints. This water retention is due to the conversion of testosterone into estrogen, thus other agent-related side effects, e.g. gynecomastia.
Such side effects can be counteracted with aromatase inhibitors or antiestrogens.

In the case of a long-term and highly dosed use of testosterone cypionate, a reversible interruption or reduction of the spermatogenesis in the testes and consequently a decrease in testicle size is to be expected.

The hypothalamus secretes LH releasing hormone, which causes the pituitary anterior lobes to secrete the LH hormone which stimulates testosterone production. If testosterone is present, no LH releasing hormone is released from the hypothalamus any more and since one is full during a cure full of testosterone, this cycle is suppressed. Most bodybuilders use clomifene citrate in the PCT (post cycle therapy) phase in order to stimulate this circulation again. An anticatabolic substance such as Clenbuterol hydrochloride or ephedrine is also used for this purpose.

Women who use testosterone generally prefer a testosterone product with a shorter duration of action (e.g., testosterone propionate), since the amounts of active ingredients in the body are easier to calculate than with long testosterone esters such as testosterone enanthate or testosterone cypionate.

Side effects:

Hypertension, acne vulgaris, gynecomastia, sexual overstimulation, increased water retention, edema, more frequent erections, testicular atrophy, reduced spermatogenesis, increased aggressiveness, voice depression, accelerated hair loss

Doping information:

Testosterone Cypionate can still be detected up to 3 months after the last application.

Application / Doping:

Common testosterone cypionate dosages in bodybuilding begin with 200 mg (beginners), go over 400 – 600 mg in advanced, up to dosages in the gram range (1000 – 2000mg) with professionals and sportsmen. The dose is injected every 5 – 7 days. A cure lasts at least 12 weeks. With Testosterone Cypionat, long-term cures up to one year are possible.

For doses starting at 400mg per week it is usually combined with an aromatase inhibitor such as exemestan, letrozole or anastrozole.

The dosage information given here is not intended as a dosage recommendation or medical advice. These are statements by bodybuilders who have used or used these active ingredients. The dosages should never be regarded as generally valid. If you are using the idea of using steroids or similar, ask a doctor or pharmacist.

Black market price / availability:

A 2ml ampoule testosterone cypionate with 250mg active ingredient costs on the black market 4,00 – 9,00 Euro and is moderately available.
A 10ml ampoule with 200mg / ml active ingredient is available on the black market for 30 – 50 euros.


On the black market, fake testosterone cypionate products are often found.


Testosteron Cypionat

Trade name / manufacturer:

Testex Prolongatum 250 / Q-Pharma (formerly Altana Pharma, Byk Elmu)
Duratest-100 and Duratest-200 / Roberts, USA
Depo Testosterone Cypionate / Pharmacia, Canada
Miro Depot / Hanil Pharma, Croatia
Testex Prolongatum / Q Pharma, Spain
Virilon / Star, USA
Vironate / Xelox Pharma, Philipines

Chemical Information:Testosteron Cypionat - Testosterone Cypionate - Molekularformel

Testosterone Base + Cypionate Ester
Molecular formula: C27H40O3
Molecular weight: 412.605 g / mol
Monoisotopic mass: 412.297760 Da

Molecular weight (base): 288,429 g / mol
Molecular formula (base): C19H28O2

Molecular weight (ester): 132.1184 g / mol
Molecular formula (ester): C8H14O2

(8ξ, 10ξ, 13ξ, 17β) -3-oxoandrost-4-en-17-yl-3-cyclopentylpropanoate