P-Ject 100 Testosterone propionate 12/21


P-Ject 100 Testosterone propionate 12/21

Original product of Novector Labs

Availability: In stock

P-Ject 100 Testosterone propionate 12/21

Which testosterone should I choose?

Rather, this text is addressed to people who are just beginning their adventure with SAA. We all started once. You don’t have to know everything right away. Here we describe in a few words which ester works, how they differ, which testosterone to choose, which one will suit your needs most. I know these are the basics, but if you’re just starting out, you might be embarrassed to ask about them. So I invite you to read. We’ll start at the beginning.

What is ester?

An Ester is a side chain added to a drug to increase its half-life. In this case, you have pure testosterone, which has an extremely short half-life. If you inject it without the added Ester, it will be absorbed within minutes and “disappear” within hours.

To keep your blood testosterone levels stable throughout the day, you would need to take several injections throughout the day. By adding an ester to it, its release time and Half-Life can be controlled. When injected with the steroid, the ester blocks the OH group and prevents the steroid from immediately binding to androgen receptors. But when the steroid is released into the bloodstream, the ester is neutralized by esterase enzymes that restore the OH group, making the steroid active again.

The most important thing you have to remember from this is that you have to maintain a steady testosterone level, and the simplest way is to choose the right Ester – the length of testosterone.

Types of testosterone esters

There are short esters, medium and long.

  • Short esters are designed for rapid absorption and help to reach maximum levels in plasma within one or two days. They are water-soluble and have a higher melting point, which increases the likelihood of pain after injection. In this case it is important to remember that you will need to inject more often because the medicine leaves your body quite quickly. If you are using a short testosterone Ester, you will need to inject at least twice a week. Three times is considered optimal.
  • Medium esters will act more slowly and maintain maximum concentration for three to four days. Testosterone levels will return to normal within 5-6 days. The result is that you only need c 1-2 injections a week.
  • Long esters are designed for continuous, slow release of testosterone over 10-12 days. It is used in TRT protocols (to compensate for reduced testosterone levels in organism) because it prevents the need for frequent jamming. Stable testosterone levels can be maintained with just one injection in two weeks. The long esters are fat-soluble and are therefore released much more slowly from the “storage” created by injection.

Three esters – which testosterone to choose

Let’s take a look at the three best testosterone esters and their effects on the body.

Testosterone Cypionate:

Fat-soluble, slow-acting, long-acting testosterone ester with an active duration of approximately 6 days. What does this mean for us? That we only need one shot a week to keep our testosterone levels steady. It develops its full power around the 3rd week of use. A standard cycle on Cypio lasts about 8-12 weeks. The biggest downside is quite strong aromatization to estrogen.

Testosterone Enanthate:

Fat-soluble, slow-acting, long-acting testosterone ester that is almost identical to Cypionate. In practice, it is considered to be minimally longer than Cypionate. You’re probably wondering now which testosterone to choose in that case? The answer probably won’t satisfy you. It’s best to check on both of you and then see which suits you better, which makes you feel better. One will say cypio, the other rabbi will say enan…

Testosterone Propionate:

Prop is a short-acting ester with a half-life of just 3-4 days . This will result in the fastest maximum levels of testosterone in plasma. However, after a high, testosterone levels drop. In the case of prop, it was accepted to do injections every two days. Some even do it every day, but let’s not kid ourselves – it’s a bit of a nuisance. Our thighs and buttocks also need some rest from the needle.

The Prop Test stands out as the most painful injection of all the esters tested. That’s because it has a melting point of 120C, while Testosterone Cypionate has a low melting point of just 36C. If you’re wondering if it’s going to hurt you, it can’t be conclusively determined. Everyone has a different pain threshold, everyone has a different pain threshold. Another factor that correlates with pain is concentration. The bigger, the greater the chance of painful injections.

What’s the difference between these esters?

Theoretically, these esters can control the time of steroid release. But it’s more than that.

Long esters are more anabolic. According to a clinical study conducted in 1954 by a team of scientists, each long-acting ester will produce the slowest peak in plasma testosterone levels. However, it also increases nitrogen retention more than short ester and is more easily converted to estrogen, which in turn increases SHBG and IGF-1. Put simply, the Cypio Test can be more anabolic than the Prop Test, so if you want to use it for a steroid cycle, it gives you a slight advantage. You will still have to choose the perfect schedule for dosing and injections to maintain maximum levels. Also, if you tend to flavorize much earlier and more aggressively, you will need to watch your E2 levels closely and use AI (an aromatase Inhibitor) to prevent aromatization.


It increases protein synthesis by binding to them in cells. It increases the absorption of nutrients, and the most protein, which is the building block of mass.

Testosterone hydrates the cells, making them larger, hence the added effect of “mass size.”

Indicated delivery of protein in the amount of 2g per 1kg body weight.


It occurs in the form of esters of varying lengths of operation. The shorter ester releases faster, but acts faster.


Excess testosterone converts to oestrogen (flavourings), causing excess water in the body, shedding fat, decreased libido.


Anti – estrogen agents (PCT-post cycle therapy) are recommended when taking testosterone to reduce aromatization.

It is worth trying Mestipro to take while you are taking it, if your symptoms start to appear anyway, we suggest Moxafan or Mastrol.

To take after the testosterone intake cycle (PCT) we suggest using MOXAFAN, TAMOXIFEN, or NOVALDEX.


Each measure, so that the body does not get used to it, should be changed to another of the same group after about 3month injections.

Types Of Testosterone:

Testosterone Blend
a mix of esters of different lengths is the most effective at the beginning of the intake cycle thanks to esters of different lengths of action.
absorbs 5 h-3 days, lasts up to 3 days

Blend products
250mg  of concentration – 4 esters – one ampoule should be taken every 2 days


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