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Testosterone isocaproate is one of many forms of synthetic testosterone with the isocaproate ester attached.
Another popular form often used interchangeably – at least in verbiage – is testosterone caproate.
Is there a difference? How do they affect the body in a way that would benefit bodybuilders and athletes? Buy Testo-Max online here.
Table of Contents
What Does Testosterone Isocaproate Do In The Body?
Is there a difference between testosterone isocaproate and testosterone caproate? Not really.
They both have the same molecular makeup: C25H38O3.
Testosterone isocaproate/testosterone caproate also has a number of other names, a couple of which are nearly unpronounceable to most laymen (17β Hydroxyandrost-4-ene-3-one isocaproate Testosterone 4-methylvalerate).
While bodybuilders and athletes may not necessarily care about its molecular structure, they do care about whether it works or not.
Most experienced bodybuilders and athletes are aware of what testosterone does in the body.
For those new to anabolic androgenic steroid use, it’s important to remember that testosterone has more functions in the body than to merely improve strength, muscle mass, and sex drive.
Testosterone is involved in numerous body functions and activities and has an influence on:
- growth and strength of bones
- facial and body hair growth
- a deeper voice
- metabolism
- digestion
- psychological well-being
Testosterone Esters
A number of esters are often attached to testosterone to modify its absorption rate and half-life.
Without an ester, it’s called Testosterone Base or Suspension.
The addition of testers to testosterone also helps to enhance solubility of testosterone in oil, which is a component of most injectable solutions.
The isocaproate ester attached to testosterone is not as common as other esters used today, which include:
- Acetate
- Enanthate
- Propionate
- Decanoate
- Undecanoate
Testosterone isocaproate/testosterone caproate is relatively unheard of today when used alone, but it is often found in testosterone blends such as Sustanon 250 and Omnadren.
Both these synthetic anabolic androgenic steroids contain four different esters.
The two are only slightly different:
Sustanon 250:
- Testosterone Decanoate
- Testosterone Isocaproate
- Testosterone Phenylpropionate
- Testosterone Propionate
Omnadren contains:
- Testosterone Caproate
- Testosterone Isocaproate
- Testosterone Propionate
- Testosterone Phenylpropionate
Testosterone blends are also rated pretty much the same when it comes to their anabolic androgenic properties.
Of course, the milligram strength of the different forms of testosterone and their esters can affect efficacy, results, and potential side effects.
Side Effects Associated With Testosterone
Testosterone isocaproate or testosterone caproate, however it’s described, is a form of testosterone, and therefore can contribute to a number of side effects.
The most common side effects associated with testosterone usage includes:
Suppression of endogenous testosterone – Exogenous or outside of the body introduction of any type of testosterone hormone into the body can trigger shutdown of body-produced testosterone.
This can lead to shrinking testicles or testicular atrophy. Such a condition is often temporary, but decreases sperm production, quality, and sometimes, fertility. Retaining normal testosterone levels following cessation of the drug can take some time.
Aromatization – Testosterone converts to estrogen, a process known as aromatization. This can contribute to undesired side effects in men including the dreaded gynecomastia, water retention, and abdominal bloating.
Unhealthy changes in lipid levels – Levels of good (high-density lipoprotein/HDL) cholesterol and “bad” (low-density lipoprotein/LDL) must be carefully maintained in the body for optimal cardiovascular health.
Anabolic androgenic steroids cause an increase in bad cholesterol over that of good cholesterol, increasing the risk of atherosclerosis, which can trigger a heart attack or stroke.
Concerns about these health risks lead some bodybuilders to turn to more natural remedies.
Bodybuilders often take a combination of other drugs along with testosterone blends that include testosterone isocaproate/testosterone caproate in order to reduce side effects.
Among them include aromatase inhibitors, which can help reduce the estrogen-like side effects caused by aromatization.
Of course, dosage and frequency of dosage can increase the risk of side effects.
Testosterone blends, because of the number of esters, typically have relatively moderate half-lives, with Sustanon 250 averaging up to 10 days and Omnadren 250 typically used in a range of 250 to 750 mg a week. Some bodybuilders exceeded 1,000 mg a week.
The Testosterone Isocaproate half-life is 7-9 days.
The higher the dosage, the higher the risk of side effects.
Testosterone Isocaproate/Testosterone Caproate For Women
What about testosterone isocaproate uses for women?
Because of its similarity to endogenous testosterone and moderate to high ability to aromatize, women should use with caution and at lower doses in order to reduce symptoms and side effects of virilism.
The androgenic properties in testosterone isocaproate and other forms of testosterone trigger masculine type side effects in women – known as virilism or virilization.
Virilism in women contributes to:
- smaller breasts
- disrupted menstrual cycles
- cessation of menstruation (amenorrhea)
- enlarged clitoris (clitoromegaly)
- a deeper voice
- growth of hair on the face or unusual places on the body (hirsutism)
Some of the side effects of virilization are permanent, even if a woman discontinues use of the testosterone blend immediately.
While Sustanon is still manufactured around the world (though not in the US), Omnadren testosterone blend is more difficult to find.
Underground labs developing their own versions of testosterone isocaproate/testosterone caproate blends with other esters are out there – but use with caution.
TestosteroneTestosterone 400Testosterone AcetateTestosterone AnabolicTestosterone BaseTestosterone BlendTestosterone CycleTestosterone CypionateTestosterone DecanoateTestosterone EnanthateTestosterone Enanthate 250Testosterone Enanthate CycleTestosterone Enanthate DosageTestosterone EstersTestosterone IsocaproateTestosterone Kick In TimeTestosterone Muscle BuildingTestosterone PCTTestosterone Only CycleTestosterone PhenylpropionateTestosterone PropionateTestosterone Propionate CycleTestosterone Propionate DosageTestosterone ResultsTestosterone Steroid Cycle BeginnersTestosterone Steroid for SaleTestosterone Steroid InjectionsTestosterone SteroidsTestosterone Steroid Side EffectsTestosterone SuspensionTestosterone UndecanoateTest Sustanon CycleHow to Take TestosteroneMale Testosterone CycleReferences
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