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Synovex (Testosterone Propionate)

Chemical Composition

Testosterone base + Propionate ester
Molecular Weight (base): 288.429
Molecular Weight (ester): 74.0792
Formula (base): C19 H28 O2
Formula (ester): C3H6O2
Melting Point (base): 155
Melting Point (ester): 21C
Manufacturer: Multiple
Effective Dose (Men): 300-2000 mg+/week
Effective Dose (Women): Not Recommended
Half-Life: 2-3 Days
Detection Time: 2-3 Weeks
Anabolic/Androgenic Ratio: 100/100



Synovex, a.k.a. testosterone propionate, is testosterone with the addition of the propionate ester, a short fast-acting ester. Synovex is often referred to as Test Prop or simply Prop.

Furthermore, testosterone propionate is a very popular form of testosterone because of its fast-acting effects, very little water retention (especially compared to longer esters), and often minimal side effects due to its every day or every other day dosing protocol.

Steroid Form

Synovex, a veterinarian drug, is found in the form of a small sterile implantation pellet which provides 25 mg of Test Prop and 2.5 mg of estradiol benzoate. The number of pellets in each cartridge dose varies, and is contingent upon the intended target animal. For example, Synovex-H, denoted by the H for heifer contains 80 pellets (10 doses of 8 pellets each). There is also an S for the steer implant, and a C for the calf implant cartridges.

Since Synovex comes in the form of a veterinary implant pellet that was not designed for human consumption, however these pellets can be physically converted into a suitable form for human usage. Several labs and many individuals develop a homebrew of Synovex using a rather complex process for both preparation and sterilization in order to produce a properly developed oil solution for intramuscular injection. However, the safest and quickest way to prepare Synovex is to grind it up along with DMSO in a 50/50 mixture for transdermal delivery.


Indications/Purpose & Side Effects

For the Indications/Purpose & Side Effects of Synovex see the Testosterone Propionate profile.


Additional Information

As a wonderful testosterone base, Synovex can be stacked with bulking cycle ingredients like Equipoise, Halotestin, Deca-Durabolin (and other nandrolones), Trenbolone, and Dianabol. Furthermore, Synovex does of great job supporting definition and pre-contest cycles which often include Winstrol, Primobolan, Oral Turinabol, Anavar, Clenbuterol, and Cytomel (T3).

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