Testosterone Test

The base hormone of every steroid cycle, and the reference every other compound is measured against.

Also known as Test, T, Virosterone, Homosterone, Mertestate, Testim, Androderm, Testosteron, Androlin

Effects Build muscle Libido Lose fat

Routes Injectable Oral Topical

Legal status Controlled substance

WADA Banned at all times

3D Molecular Structure of C₁₉H₂₈O₂

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Formula: C19H28O2
Molar mass: 288.4
CAS: 58-22-0
PubChem CID: 6013
IUPAC name: (8R,9S,10R,13S,14S,17S)-17-hydroxy-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one
InChIKey: MUMGGOZAMZWBJJ-DYKIIFRCSA-N

Name	Abbr	Route	Notes
Testosterone enanthate	Test E	Injectable	Long ester, ~7 day half-life. The default for most cycles.
Testosterone cypionate	Test C	Injectable	Long ester, near-identical to enanthate; more common in the US.
Testosterone propionate	Test P	Injectable	Short ester, ~2 day half-life. Frequent injections, fast clearance.
Testosterone undecanoate	Test U	Injectable	Very long ester used in Nebido and oral Jatenzo.
Testosterone phenylpropionate	TPP	Injectable	Short-to-medium ester found in Sustanon blends.
Testosterone isocaproate	TI	Injectable	Medium ester, mainly seen as a Sustanon component.
Testosterone decanoate	TD	Injectable	Long ester, a Sustanon component.
Testosterone acetate	TA	Injectable	Very short ester, rarely used alone.
Testosterone suspension	Test S	Injectable	Unesterified testosterone in water; acts immediately, painful.
Sustanon 250	Sus	Injectable	A blend of four esters designed for a smoother release curve.
Testosterone gel	Gel	Topical	Transdermal testosterone used in prescribed replacement therapy.