SUSTEX (Sustanon)

Sustanon (Sustex) is a testosterone blend consisting of a mix of propionate, phenylpropionate, isocaproate, and decanoate esters. Because of the mix of different esters, Sustanon (Sustex) has improved pharmacokinetics with the fast action of propionates and the prolonged action of longer isocaproate and decanoate esters, providing a more stable concentration of testosterone in the blood over a longer period of time.
Esterification of the 17-beta-hydroxy group by different esters can prolong the action of testosterone, because testosterone esters are less polar than free testosterone. Testosterone esters in oil injected intramuscularly are absorbed slowly from the lipid phase; thus Sustex can be given at intervals of two to four weeks.
Sustanon is available in two variants: Sustex 250mg and Sustex 400mg.

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Packaging: Single vial with silicone stopper, containing 10ml of product.
NOTE: This product is designed to be injected with a frequency that matches the shortest ester (Testosterone Propionate). This product will need to be injected every second day to avail of its full effects and any blood drawn for testing will need to be taken within 48 hours of the previous injection

Dosage & administration:

Half life
between 24 hours and 10 days
Adult dose (Male)
200mg-1200mg EOD, ETD or EFD by intramuscular injection
Adult dose (Female)
25-100mg EOD, ETD or EFD by intramuscular injection
Average Cycle Length
4-12weeks following an EOD injection pattern. Male hormone replacement therapy sees 1ml of Sus250mg injected every three weeks ongoing
Anabolic #
Androgenic #
CAS Name
androst-4-en-3-one, 17-[(1-oxoheptyl)-oxy]-(17)-androst-4-en-3-one
CAS Name
17-(3-cyclopentyl1-oxopropoxy)-(17)- 17-(1-Oxopropoxy)
CAS Name
(17b)-androst-4-en-3-one 17b-Hydroxyandrost-4-en-3-one decanoate