Testosterone Suspension is an injectable hormone in a water base that was developed and used for decades and is actually the first anabolic, androgenic steroid used. For the purpose of building mass, Testosterone Suspension has never been surpassed since it was first developed in the 1930´s. Many underground labs also suspend this product in propylene glycol or oil as well (which makes for a very painful injection). It has no ester attached; therefore no ester is calculated into the weight. This is extremely beneficial to the user since 100mg of testosterone suspension will yield 100mg of testosterone unlike the other esterfied testosterones such as (for example) testosterone enanthate which only yields 72mg of actual testosterone per 100mg of total weight. Testosterone suspension considerably raises the storing of glycogen in the muscle cells and because it is dissolved in water it becomes effective immediately.

Also making it different from other esterfied hormones is that it only keeps sustained and elevated testosterone levels for 2-3 days due to its micro-crystal design. This forces the user to inject on a daily basis, with better results coming from twice-three time a day use due to its short active-life with the effective dose ranging from 350-1000mg per week (50-140mg/day). One should practice site rotation and should practice injecting in the same spot only once per week at most. It should be noted that test suspension is usually a very painful shot, so it is often cut with something else, such as B-12, or other steroids. You can mix a water based steroid with an oil based steroid in the same syringe. It looks like a lava lamp, and you can use it as a level if you are building something,there´s no problems with injecting a mixture like this.

Note that due to the water base (though, not an issue if using a product suspending in propylene glycol or oil) the testosterone will most likely settle to the bottom of the vial and that shaking the vial is needed in order to insure even dosing. This is true for all water based steroid suspensions.

Testosterone can be considered one of the most powerful mass builders and testosterone suspension can be considered one of the most powerful of the testosterones simply due to the fact that it has no attached ester. This means that you are getting 100mgs of Test per 100mgs you inject; Suspension is the only version of Testosterone that can boast that claim. A growing reason why many athletes are choosing to use testosterone suspension instead of enanthate or other forms (besides the fact that it has a higher amount of pure testosterone resulting in greater results) is that it may be responsible for localized growth at the site inject like winstrol. Most athletes will also only use this form of testosterone in a bulking cycle as it is usually accompanied by high water retention, severe bloat, adipose storage, and gynomastia. This product also has a high level of aromitization into estrogen and coverts to DHT (dihydrotestosterone) as well. Of course, adding endogenous testosterone to your body will result in the shutting down of your own exogenous testosterone levels, as well as the hormones secreted which cause testosterone to be secreted by your testes.

Testosterone is many times not used by women because male secondary sex characteristics may start to appear in female users. However, testosterone suspension will allow women to site-inject and help problem areas common in women such as calves and inner thighs, and can be used in small enough doses, clearing the system quickly if sides develop, that some women use choose to use it. This advantage also means that one can pass a drug test a couple of days after the last injection. This is a great advantage to athletes who will be tested and still want the benefits of a mass drug which can not be tested for easily, many other forms of testosterone (such as Cyp or Enanth) can take 3 months to become undetectable.

As far as results of the cycle, one should be very happy with the results as so far as the diet and training regimen are good. As I previously stated, testosterone is a highly anabolic and androgenic hormone, it has an anabolic (muscle building) rating of 100, making it a good drug to use if one is in pursuit of more size and strength. Firstly, testosterone promotes nitrogen retention in the muscle the more nitrogen the muscles holds the more protein the muscle stores. Testosterone can also increase the levels of another anabolic hormone, IGF-1, in muscle tissue. Testosterone also has the amazing ability to increase the activity of satellite cells. These cells play a very active role in repairing damaged muscle. Testosterone also binds to the androgen receptor to promote A.R dependant mechanisms for both muscle gain as well as fat loss. Testosterone significantly increases the concentrations of the A. R in cells which are critical for muscle repair and growth. Testosterone induces changes in shape and size of your muscle fibres, and also can change the actual appearance and the number of muscle fibres. Also of note to both bodybuilders and athletes is that many anabolic/androgenic steroids (like testosterone susprnsion, in this case) can also protect your hard earned muscle from the catabolic (muscle wasting) glucocorticoid hormones that your body employs to maintain homeostasis. In addition, Testosterone has the added ability to increase red blood cell production, and a higher RBC count may improve endurance via better oxygenated blood. More RBCs can also improve recovery from strenuous physical activity, and this has obvious benefits for the hard training bodybuilder or athlete. As with 99% of other steroids, Testosterones´ anabolic/androgenic effects are dose dependant, the higher the dose the higher the muscle building effect.

Testosterone suspension is best run for at least 8 weeks and depending on the experience of the user one may choose to runs for much longer. Since this hormone is primarily used by more advanced users other drugs are usually incorporated into the cycle. One should opt for other mass drugs such as dianabol and deca-durabolin since the goal of this cycle will most likely be and should be for mass. The user should expect to see rapid muscle growth, water retention, and possibly extra fat deposits. Some athletes will also choose to inject Suspension before a workout or competition (this would increase aggression, and would be especially important for MMA competitors, or those in a sport where aggression is a benefit).

17b-hydroxy-4-androsten-3-one
     Testosterone
     Formula: C27 H40 O3
     Molecular Weight: 412.6112
     Molecular Weight: 288.429
     Formula: C19 H28 O2
     Melting Point: 155
     Manufacturer: Various
     Effective Dose (Men): 350-1000mg/week
     Effective Dose (Women): Not recommended
     Active life:+/-1 day
     Detection Time: +/-1day
     Anabolic/Androgenic ratio:100/100.

Source: steroid.com