Sustanon in this injectable oil base is a blend steroid. Teragon has produced a formula that contains four different types of testosterone esters. In each vial you will find testosterone propionate, decanoate, Isocaproate and Phenylpropionate. Each of these esters has been combined into a perfectly engineered testosterone product. The idea of Sustanon was to create an extremely fast acting product that would see an immediate performance boost while still maintaining blood hormone levels over long-term. Two of the esters in the product are used up very quickly while the rest will stay in your system for 2 to 3 weeks. Sustanon produces high androgenic and anabolic properties in every dose. Most athletes take it primarily as a bulking drug for building up quality muscle mass and strength. Products like Sustanon which contained testosterone are usually one of the most popular bases for any steroid cycle because they produce big gains in muscle size, overall muscle strength and increase the feeling of overall well-being. Most athletes also report that their sex drive and libido are greatly improved while on a cycle. Estrogen related side effects are a concern when taking any type of aromatizing steroid like this one. Preventing these negative side effects with products like Nolvadex Arimidex and Femara is what athletes taking this product generally do. These anti-estrogen medications help us to normalize our body chemistry and ensure optimal results. Ensuring that all of your demons are kept after a cycle is also a big concern. At the end of the cycle you will need to supplement with Clomid, Nolvadex and HCG to ensure that your body can continue producing natural steroids. This will ensure that your muscles have all of the tools that they need to continue growing and to maintain your supplemented results. The recommended dosage for this product on men is 250-1000 mg each week divided into two doses. Women should not take this product.