Suspension is injectable testosterone suspended in a water base. Since
it’s got no ester attached, you get the most testosterone possible for
Testosterone Suspension was first
developed in the 1930's, and is the “simplest” testosterone preparation
Many underground labs suspend this product in propylene glycol or oil
instead of water, but this makes for a very painful injection.
Realistically, it will perform just as any other testosterone will,
although dosing is necessarily going to be a daily (and painful)
affair. Testosterone Suspension will enter and clear your body very
rapidly, producing the host of anabolic and androgenic effects that any
other form of testosterone will: increased nitrogen retention in the
increased levels of the growth factor IGF-1 in both the
muscle tissue and liver
the activity of satellite
Receptor mediated muscle gain and fat loss, a
reduction in catabolic glucocorticoid hormones 
increased red blood
cell production 
protection against coronary disease 
and increased aggression.
Personally, I use testosterone suspension immediately prior to a
workout or competition, to increase aggression, but not for much else.
I think that’s the current trend among athletes as well, and we usually
don’t see testosterone suspension being used for much else- with the
exception of its inclusion in “natural” bodybuilders pre-contest
routines, owing to the fact that they can stop using the stuff a few
days before being tested, and still test clean. Athletes in drug tested
sports organizations also use it for this reason.
The availability of this compound is quite high, although demand is
relatively low. Expect to pay roughly $50-100 for a 10-20ml bottle
dosed between 50 and 100 mgs/ml.