What is an “ester” and why does it matter?
An ester is a carbon chain attached to the testosterone molecule that slows the release of the hormone in the body.
At one end of the spectrum is pure testosterone with no esters attached, such as testosterone suspension. Once injected, we see the compound quickly released in the body. This causes a fairly rapid spike in serum testosterone, which remains elevated for only a short period of time.
On the other end of the spectrum, we have the likes of testosterone enanthate and cypionate, which contain long ester chains, resulting in a slower release of testosterone after injection (2); and subsequently, an elevated level of the hormone remains for a couple of weeks in our experience.
In between these two are various other esters. The propionate ester is a popular choice for users who want a fairly quick elevation of the steroid that lasts only several days.
For bodybuilders and athletes, an important requirement is the need to keep a relatively stable concentration of testosterone in the bloodstream. We find that by doing this, it produces the desired anabolic benefits while avoiding the undesirable side effects that stem from volatile peaks and dips.
With this in mind, shorter esters require regular injections (daily or every other day), whereas longer esters, such as enanthate, typically only require injections once or twice a week.
This is where Sustanon 250 is unique, with it containing quick-releasing propionate and phenylpropionate esters and slower-releasing decanoate and isocaproate esters, resulting in a blend that effectively produces a quick yet enduring release of testosterone.
How Often Do You Need to Inject Sustanon 250?
Like Testosterone Enanthate, Sustanon 250 can be injected once or twice per week.
It is always advisable to opt for the original Organon product (pharmaceutical grade) and avoid underground versions that try to mimic the Sustanon blend.
Sustanon 250 is usually fairly easy and inexpensive to source.
Each ampule contains 250mg of testosterone, comprised as follows:
- 100mg testosterone decanoate
- 60mg testosterone isocaproate
- 60mg testosterone phenylpropionate
- 30mg of testosterone propionate
What Results Can I Expect?
Being the primary, naturally occurring male hormone, testosterone is the number one compound in the world of anabolic-androgenic steroids.
We have found testosterone to be generally well-tolerated based on our testing. Thus, we consider it to be the best choice for someone’s first cycle, as well as providing the perfect base compound for experienced bodybuilders stacking several compounds together.
While results vary from person to person and depend on various other variables, users can expect testosterone to cause significant increases in muscle size and strength.
Our patients, who are fairly new to anabolics, typically report Sustanon 250 cycles producing 20+ lbs of weight gain over the course of a cycle, with roughly two-thirds of such weight being kept (once a cycle ceases and water retention normalizes).
Enanthate and cypionate are the most popular testosterone esters, as they do not need to be injected frequently. However, we find they take a while to kick in and produce results. However, with Sustanon 250, users can experience fast results in the early stages of a cycle due to the presence of propionate and phenylpropionate esters (yet they can be injected at the same frequency as enanthate or cypionate).
For those who have already cycled other testosterone esters, there is little difference between swapping those esters for Sustanon 250 in terms of dosage guidelines and stacking options.
Sensitive individuals that are prone to side effects with testosterone are likely to experience the same outcome with Sustanon 250.
