Most injectable anabolic steroids esters share a bound ester that determines their half-life and duration, and we will examine how this works.
This article is not intended to be a scientific treatise full of difficult words and incomprehensible phrases. Instead, we will try to explain in the most practical and understandable way possible what esters linked to various anabolic steroids are. Many people write to us asking about the difference between a propionate and an enanthate anabolic steroid, asking us what the differences are between the various esters and how to use them best.
What exactly is an ester?
Esters are organic compounds derived from a chemical reaction that we will not explain in detail to avoid boring you. Put simply, this reaction releases elements that have different absorption times in our bodies: by binding an ester to an anabolic molecule, we can therefore deduce that the half-life of the product can be manipulated. The anabolic half-life is simply the time that the product acts on our body.
Practical behavior of compounds
If a drug has a half-life of only two hours but the levels of that drug must be constant in the body, we have to take the drug every two hours. If a longer ester is attached to that drug, the half-life increases and we can “spread” the intake over time. Keep in mind that the half-life not only affects the duration of the drug’s action in the metabolism but also affects the time it takes for the active ingredient to leave our body.
How many times have we asked ourselves, “Which is better, testosterone enanthate or cypionate?”, “Which is better, Sustanon (which is a blend of esters) or testosterone propionate?”: The answer is always the same … the molecule itself doesn’t change, but the duration of action (and, consequently, the administration method) does; based on your needs, you’ll choose the ester that best suits you.
Cycle effects from specific esters.
It is universally accepted that a drug with a slower action has less pronounced side effects on the body. Anabolic steroids with a short half-life tend to cause peaks and troughs in blood concentration, which are not always beneficial for our metabolism.
Furthermore, anabolics with a fast ester tend to aromatize more due to the peaks and troughs in serum levels, meaning that the values are less stable. For the same reason, we recommend frequent (and possibly smaller) injections even with longer esters.
Common anabolic ester types:
It should be noted that there are hundreds of possible combinations of esters, and we are certainly not going to list them all here: here is a list of the most classic esters and those most commonly used in the world of anabolic steroids:
Acetate: The acetate ester is very short-acting and is absorbed very quickly by the body. The Trenbolone Acetate It is a well-known product that uses this ester.
Propionate: a widely used and very fast-acting ester with a half-life of just over 2–3 days. Well-known anabolic steroids that use this ester include the Testosterone Propionate and the Masterone Propionate
Phenylpropionate: This structure extends the half-life slightly past the standard propionate version, requiring injections about twice a week. Nandrolone NPP applies this ester.
Isocarpoate and Carpoate: These two structures share similar properties with a one-week half-life. Both appear in the Sustanon blend.
Enanthate: A widely used ester with a half-life of between 10 and 14 days. The most famous one is the Testosterone Enanthate which is based on this ester, as is the Parabolan
Cipionato: An ester that is virtually identical to the enanthate, designed specifically to replicate the enanthate ester where it had been patented and was therefore unusable. Its half-life is only slightly longer. The Testosterone Cypionate It belongs to this family of esters.
Decanoate: a fairly long-acting ester (slightly more than 14 days) made popular by its use with nandrolone, which has led to its Deca Durabolin
Undercylinate: a very, very long-acting ester that can extend the half-life to more than 21 days. The Boldenone It is the classic steroid that uses this ester.
