Testosterone cypionate: how and why to use it in bodybuilding

Author: Yuri Klimishin - an iron enthusiast and veteran of the "chemical" front.
2015-11-23

Important! We do not advocate for the use of steroids and other potent substances. All information is provided so that those who still decide to take them can do so with minimal health risks.

Testosterone cypionate (cyclopentylpropionate) is another separate (mono) ester of testosterone that is actively used in strength sports. Unlike enanthate and propionate, cypionate does not have a classic half-life. It ranges from four to eight days. Therefore, not everyone can find the optimal usage scheme for this ester. But more on that later. Like any other injectable form of testosterone, cypionate ester has all the positive qualities associated with this hormone:

1. Good stabilization of the androgen receptor;
2. Pronounced anabolic and androgenic effects;
3. Outstanding anti-catabolic abilities;
4. Increased organic production of GH and IGF-1;
5. Supercompensation of glycogen;
6. Increase in the number of specific receptors in muscle tissue;
7. Joint lubrication (during the cycle);
8. Enhanced erythrocyte production;
9. Good effect on athletes with varying experience in using AAS.

Like enanthate, cypionate easily and simply converts to estradiol and dihydrotestosterone. With all the accompanying phenomena, both positive and negative.

For some reason, cypionate is considered a more expensive version of testosterone enanthate. This is not the case. If you carefully study the ester chain of this ester, it becomes clear that it most closely resembles the ester chain of phenylpropionate. Certain differences certainly exist, but no dramatic difference is observed. So, with full justification, cypionate can be described as something between enanthate and propionate.

The peak concentration of testosterone after a cypionate injection is observed already within 48 hours. And it can remain at this level for four to eight days. This uncertainty regarding the half-life poses the greatest problem in the case of cypionate.

As a mono ester, it acts evenly and stably. The same stability is observed when its level decreases after activity ceases. Here, it is important, based on subjective feelings, to guess the frequency of injections. If you rush, you'll encounter aromatization in full bloom. And if you delay, you might end up in a hormonal pit and see a rollback in results.

That is why I said that not everyone will be able to befriend this ester. But if you get it right, cypionate will become your favorite testosterone ester. My advice: start your acquaintance with testosterone by trying propionate and enanthate. Only after that, engage with cypionate.

Application

1. MASS GAIN. Here the situation is similar to enanthate. Cypionate will contribute to rapid and significant increases in body mass (the same 10 kg over the standard ten-week cycle). You can retain about half of that with a proper selection of food.

It will cause noticeable water retention. In some cases, cypionate retains water more intensively than all other injectable testosterone esters.

• Will increase overall performance in training.
• Will accelerate recovery.
• Will facilitate the process of increasing strength indicators.
• Will ensure muscle pump and relieve joint pain.
• Will protect muscle from cortisol.

The active transformation of cypionate into estradiol is solely beneficial for mass gaining. You will be larger, stronger, and fuller during the course of this androgen. In addition, you can expect bonuses in the form of a good mood, high libido, sound sleep, and appetite. These are the faithful companions of any testosterone ester. Cypionate starts to act and be felt two (more rarely, three) days after the injection. The optimal duration of the cycle is 10 to 12 weeks.

2. CUTTING. Again, if you have guessed the frequency of injections for this ester and feel good about testosterone as such, you can try cutting on cypionate. However, due to significant aromatization, long mono esters are not well-suited for the cutting phase.

3. PCT. This is a complex moment. The most reliable option is to go and test your total testosterone levels. Moreover, you will likely need to do this several times. This is the case if you couldn't quickly adapt to cypionate. Those who have succeeded will feel for themselves when to start introducing recovery medications. Generally, it is traditionally accepted to begin PCT after two half-lives of the active substance. In the case of cypionate, this is 8 to 16 days.

4. This preparation is definitely not for use by women if they wish to remain as such.

Dosing

The objective weekly dose of testosterone cypionate ranges from 300 to 1000 mg per week. Again, I recommend not exceeding 500 to 600 mg. This is more than sufficient. The frequency of injections (until you learn to customize this aspect for yourself) is one to two milliliters every third or fourth day, depending on the concentration of the substance from individual manufacturers.

Combining with Other AAS

Like any other ester, testosterone cypionate can be the only hormonal anabolic in a cycle. It can also be combined with:

• Nandrolone (200 – 400 mg per week),
• Trenbolone (200 – 400 mg per week),
• Boldenone (600 – 800 mg per week),
• Methenolone enanthate (Primobolan) (600 – 800 mg per week),
• Methandrostenolone (30 – 50 mg daily),
• Oxymetholone (50 – 100 mg daily).

When cutting, the use of aromatase inhibitors (anastrozole/letrozole) alongside cypionate is essential. From steroids:

• Stanozolol (50 – 100 mg daily),
• Trenbolone acetate (50 – 100 mg every other day),
• Drostanolone propionate (100 mg every other day),
• Mesterolone (Proviron) (50 – 100 mg daily).

In case of excessive water retention during the mass phase (which can sometimes happen), consume AI (aromatase inhibitors) (anastrozole/letrozole). You can read more about the side effects of testosterone at the end of this article.