Testosterone Enanthate, Cypionate or Propionate. Which one to choose?

When it comes to testosterone replacement therapy (TRT) or actual doping, most people ask: Which testosterone should I choose?

In this article, I will briefly explain and clarify this topic so you can answer the big question yourself.

Virtually any substance that comes into direct reaction with androgen receptors will suppress testosterone production. SARMs, oral AAS, and prohormones are no exception. That means that exogenous testosterone ought to be the base of every single AAS cycle to maintain optimal testosterone levels and don't bother yourself with the "block"/HPTA suppression.

The first thing you need to know when choosing your testosterone ester is:

The almost only difference between any ester is half-life time and their pharmacokinetics, meaning how fast they kick in.

The second? 

Whichever you choose, testosterone should only be used as the base of your cycle, not as the ultimate anabolic itself, run at immensely high doses.

OMNADREN

First in line - a testosterone blend called Omnadren, containing 4 different testosterone esters. On the graph below you can see its half-life time. In summary, its life span is about 24 days. At first the strongest hits in testosterone propionate, after its effects fade out, testosterone isocaproate kicks in, then after t. isocaproate fades out, t. phenylpropionate activates itself. The last one "activated" is t. decanoate.

Omnadren has usually been used for TRT because it enables maintaining optimal blood concentrations for a long time., meaning less frequent injections, even once every 10 days.

CYPIONATE & ENANTHATE

Both testosterone enanthate and cypionate are commonly known as long-lived testosterone esters. Their half-life can be accurately depicted on a graph:

Why have I shown the half-life of both testosterones on the same graph?

Because there is almost no difference between testosterone enanthate and cypionate in their structure and half-life (cypionate contains only one more carbon group than testosterone enanthate, its total life span is 1 day longer (22 instead of 21)).

As you can see in the graph, their concentration in blood decreases significantly after 3-4 days. That's why injecting it every 3-4 days is necessary to maintain its high concentration level in blood and avoid T. concentration fluctuation that may come with some adverse effects. After 21 days, both are almost gone from our body, and testosterone concentration in blood is the same as before the cycle or even much lower (if you haven't started PCT yet).

There comes TESTOSTERONE PROPIONATE:

As you could have deduced from the first graph (Omnadren), Testosterone Propionate has a very short half-life. That's why it's necessary to inject it every 2-2.5 days to maintain its optimal concentration level in the blood.

There are many other testosterone esters, yet they are barely ever used by even the most seasoned connoisseur, given their sub-mythical availability.

Okay, so which testosterone is the best?

In 90% of cases it's Enanthate/Cypionate. Their half-life time allows us relatively infrequent injections, only 2x a week. At the same time, thanks to their stable activity in the blood, they don't potentiate aromatase as much as propionate or cause potential fluctuations in testosterone concentration like Omnadren.

Additional factor:
Injections of Enanthate and Cypionate are usually better tolerated. However, if the muscle hurts right after the injection, it probably means that you made the injection the wrong way, the oil/alcohol that testosterone is made on is not well tolerated by your organism, or it's one of your first injections in life.

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