Testosterone Undecanoate is an injectable form of testosterone that is marketed, among others, by Bayer under the trade name Nebido. Testosterone undecanoate has a very different pharmacokinetic profile compared to other commonly used forms of testosterone such as cypionate or enanthate. This means that the amount of drug remaining in your body after you have injected this long-acting form of testosterone declines rapidly over time, and that’s why it needs to be injected every 10-14 weeks.
Testosterone undecanoate is a very long ester testosterone variant, which means its release from the intramuscular injection is slow and evenly spread out over a prolonged period of time. This gives the user a smoother hormonal profile with less spikes or changes in blood levels. Because Testosterone undecanoate has a long half-life, injections are usually done once a week, but some users prefer to inject twice a week at an even rate to get better results regarding strength enhancement. More frequent dosing isn’t necessary because concentrations reached peak within 48 hours after administration and remain above baseline for more than 3 days. In general, injecting once per week should do the trick.
Testosterone undecanoate is not habit-forming and has no known side effects on the prostate, liver, kidneys, or cardiovascular system. This makes it an ideal choice for first-time steroid users who aren’t used to needle injections. Testosterone undecanoate also doesn’t cause any bloating because aromatization of testosterone is less pronounced with this variant than with others such as cypionate or enanthate. In fact, clinical trials have shown that testosterone undecanoate reduces serum estradiol concentration by a mere 20% after 12 weeks of treatment – much lower than the 50-60% increase observed with other forms of testosterone. Because aromatization can be a problem during a cutting phase, this can be very useful.
Administration and dosage
Administration of testosterone undecanoate is often recommended for those who have been using injectable steroids for a long time or those with a high experience level in the gym as it’s considered to be safe and well-tolerated by most users. In addition, Testosterone undecanoate doesn’t cause water retention, so it’s a good choice during the pre-competition phase or when planning a break from anabolics.
Testosterone undecanoate can be injected deep into the gluteal muscle, so you should take care of where you inject it. For example, injecting too close to the hip joint can cause problems when sitting or lying down afterward.
Since testosterone is typically found in high concentrations in the blood, its release from the injection site is very quick and results are evident almost immediately, giving users a large boost in strength during workouts. Furthermore, because of the long half-life of this ester variant when injected once per week, there is no need for large gaps between injections.
Read also about Cycle on Testosterone Enanthate
Testosterone Undecanoate cycle
When cycling with Testosterone Undecanoate, it’s best to start your cycle off with a minimum of 7-9 weeks on the end of an oral like Dianabol or Anavar to reduce HPTA suppression. From there, you may want to stack Testosterone Undecanoate with an oral like Winstrol or Trenbolone due to the fact that they can help reduce estrogenic effects while keeping gains at peak levels.
Cutting- This is a great compound when you are cutting because it has almost no water retention, making it perfect for stacking with other testosterones and in some cases creating a “super Testosterone.”
Bulking- If bulking, testosterone undecanoate can be one of the best choices out there. It will provide great strength and lean mass gains while keeping you from bloating up too much. A win-win combination in many users’ eyes.
Testosterone Undecanoate injection cycle
After your injectable steroids are used up, you might want to consider cycling testosterone in order to keep gains high and estrogen low. For example, stacking Testosterone Undecanoate with testosterone propionate during weeks 6-12 for a total of 12 weeks is a great idea if looking for gains beyond belief. Alternatively, stacking it with Equipoise during weeks 6-12 is another excellent choice when looking for big mass gains while minimizing estrogenic effects.
When Testosterone Undecanoate is used in combination with testosterone propionate, you can expect to gain more strength and size than with any other type of cycle. This stacking is great for pure mass usage due to the very fast-acting nature of both compounds, which will keep it from bloat/”watery” look during cutting. On bulking cycles it’s important to stack Testosterone Undecanoate with something that doesn’t aromatize so poorly, so Equipoise or NPP are good choices there. Because of how long testosterone undecanoate lasts with one injection per week most people prefer sticking to 10-12 weeks on this cycle because after that the high concentration of ester steroid makes it clear that the androgen receptor sites will be saturated and running additional long ester steroids like this for too many weeks can make estrogen levels climb too high at a certain point. The results from your weekly injections should fade away gradually as the testosterone undecanoate is completely broken down into metabolites within around 4-5 days, so there’s no need for PCT if you’re running testosterone only as of the post cycle therapy.
Testosterone Undecanoate oral dose
The most common dosage is around 400-600 mg/week, depending on the specific ester variant. The effects are strong and users report dramatic increases in lean mass without any noticeable water retention.
Testosterone Undecanoate half-life
An injection of this compound is about 10 days on average, meaning you can inject it once/week.
Oral Testosterone Undecanoate benefits and advantages
Oral testosterone undecanoate has a very long half-life which makes it last longer than other oral testosterone. It is easy to use since you have to swallow the pill instead of injecting it. The effects are good for strength and mass gains, so it is great for bulking purposes.
Oral Testosterone Undecanoate side effects
You may experience some acne breakouts during your cycle, but this will subside after you stop taking the compound. Some users also report increased aggressiveness on this compound, so it is important to run testosterone with something like Nolvadex if experiencing such issues.
Injectable Testosterone Undecanoate benefits and advantages
Injectable testosterone undecanoate has a long half-life which makes it last longer than other injectable testosterone esters, so you can make all your injections on the same day. It doesn’t need to be injected daily or weekly and that is one of the reasons why it is more convenient than regular Testosterone Cypionate. The effects are good for strength and mass gains, so it is great for bulking purposes.
Injectable Testosterone Undecanoate side effects
Although it doesn’t cause water retention, you may still feel bloated and experience some acne breakouts. Some users also report increased aggressiveness on this compound, so it is important to run testosterone with something like Nolvadex if experiencing such issues.
However, people vary in terms of how their body reacts to anabolic steroids which means that you should use testosterone undecanoate with caution to prevent negative effects such as hair loss (those who are genetically predisposed to male pattern baldness) or acne breakouts.
As always we only recommend the use of anabolic steroids if you are ready to accept all the risks associated with them, which includes the possibility that you may get caught and banned from sports.
Testosterone Undecanoate for men and women
Testosterone undecanoate dosage for women is much lower. Oral testosterone undecanoate doses usually range between 5 and 10 mg/day, which is only half the dose men use. If your goal is to develop muscles even if you are a woman, you may try this compound with caution.
Testosterone undecanoate dosage has to be reduced in women because they do not have as much testosterone hormone, plus it is more side effect prone for them. Women should stick with the lowest possible dose to avoid any negative effects.
Testosterone Undecanoate stacking
You can successfully stack testosterone undecanoate with other anabolic steroids usually Testosterone Cypionate, Equipoise, or Trenbolone. This way you get the benefits of both compounds without experiencing too many side effects. For example, one stack could be 400 mg testosterone undecanoate/week + 300mgs/ week Equipoise. Keep in mind that you need to inject testosterone undecanoate weekly, but take Equipoise every other day.
Once your cycle ends focus on proper post-cycle therapy (PCT) to help your body recover after a harsh steroid cycle. You should use supplements such as Clomid or Nolvadex since they help reduce the negative effects of anabolic steroids on your endocrine system and also speed up recovery. Remember that recovery is not instant, it takes time for your testosterone levels to return back to normal (1-3 months).
What is the duration of Testosterone Undecanoate’s presence in your system?
This is dependent on how you want to use the compound. Because it has an extremely long half-life, oral testosterone undecanoate may remain in your system for up to 16 weeks after you last took a tablet of it. However, due to the short half-life of testosterone undecanoate, which is between 5 and 7 days, the benefits of testosterone undecanoate are only active for around 4-5 weeks after injection. When combined with other anabolic steroids, this substance may remain in your system for a longer period of time since the odds of being discovered are lower than when taking the drugs alone.
Is it legal?
At the moment, this chemical is only permitted for use in veterinary medicine. It is not allowed to be marketed as a human medicine in many countries since it has not been authorized by the FDA or any other regulatory authority. Due to its manufacturing outside of the United States, testosterone undecanoate may still be purchased without a prescription. However, you will need to import it yourself from countries such as Mexico or Asia, where it is legally accessible on its own.
How long will it take before you notice the results?
However, testosterone undecanoate is not an anabolic steroid that should be taken during a cutting cycle, but rather for bulking. In order to reduce fat and grow muscle, testosterone undecanoate must be combined with other anabolic steroids. This is because testosterone undecanoate does not, by itself, help you shed weight or increase muscle mass.
After following the directions on the label, you should see some obvious improvements in around two weeks. However, when it comes to muscle mass growth, the greatest effects are obtained after at least 6 weeks of therapy, so you will have to be patient until then if your objective is just to bulk up without losing too much weight.
Given that testosterone undecanoate encourages the creation of red blood cells, which in turn improves circulation, it may take up to three months before you begin to see any benefits in the quality of your skin and hair, but it is worth the wait.
What is the process?
In order to maximize your body’s natural testosterone production, testosterone undecanoate is used primarily as a testosterone booster. When you get Testosterone Undecanoate online, it will arrive in powder form, which you will need to combine with oil before taking it orally or injecting it into a vein. When the ingredient passes through your intestinal barrier, it is absorbed into your bloodstream and begins stimulating the Leydig cells in your testicles to produce more testosterone hormone – one of the most effective anabolic steroids available for rapidly increasing muscle mass and fat loss while causing no adverse effects on your endocrine system.
Once these cells begin to produce larger quantities of this critical hormone, they will excrete it straight into your circulation, where it will tell other cells in your muscles to absorb even more nitrogen from the environment.
Nitrogen is one of the most important building parts of proteins, so having more of it available in your body implies that you can synthesize even more proteins than you would otherwise be able to do. Because they are composed of 35 percent to 50 percent protein, this will result in an increase in muscle mass. If you want to gain muscle, you do not need to follow difficult diet regimens or spend a lot of money on supplements; testosterone undecanoate will do the work on its own without any extra assistance.