What it is
Testosterone is the primary male sex hormone, produced naturally in the testes. Exogenous testosterone is a synthetic version, available in several esters that affect how quickly it is absorbed and how long it remains active. The most common forms are Testosterone Enanthate (Test E), Testosterone Cypionate (Test C), Testosterone Propionate (Test Prop), and Sustanon (a blend of four esters). All deliver the same hormone; the difference is release timing.
What it does
Testosterone increases protein synthesis and nitrogen retention in muscle tissue, leading to increased muscle mass and strength. It also increases red blood cell production, improves recovery time, and affects fat distribution. At supraphysiological doses (above what the body naturally produces), these effects are amplified significantly.
Typical dosages
TRT (therapeutic): 100–200mg per week. First cycle: 300–500mg per week is commonly recommended in harm reduction communities. Experienced users may go higher, but the risk-to-reward ratio diminishes significantly above 500mg. This is not a recommendation; it is what is commonly reported.
These figures reflect commonly reported usage in harm reduction communities. They are not recommendations. There is no safe dose of anabolic steroids for non-medical use. Start low and monitor your health through blood work.
Side effects
- Suppression of natural testosterone production (guaranteed at any dose)
- Oestrogen-related effects: water retention, gynecomastia, mood changes
- Acne, particularly on the back and shoulders
- Hair loss (if genetically predisposed)
- Increased blood pressure
- Changes in cholesterol (lower HDL, higher LDL)
- Testicular atrophy
- Mood changes: can range from increased confidence to irritability
Specific risks
- Cardiovascular: long-term use is associated with left ventricular hypertrophy and increased risk of cardiovascular events
- Fertility: exogenous testosterone effectively acts as male contraception, and sperm production often drops to near zero
- Dependency: many users find it very difficult to stop, particularly once natural production is suppressed
- Polycythaemia: elevated red blood cell count can increase risk of blood clots
What to watch for
- Blood pressure above 140/90 (get a home monitor)
- Nipple sensitivity or lumps forming (early sign of gynecomastia)
- Persistent headaches (can indicate elevated blood pressure or haematocrit)
- Significant mood changes reported by people around you
- Swollen ankles or rapid weight gain (fluid retention)
Other compounds
Trenbolone
Extreme RiskOne of the most powerful and dangerous steroids in common use. Extremely potent but with a severe side effect profile that makes it unsuitable for most users.
Anavar (Oxandrolone)
Lower/Moderate RiskOften considered one of the 'milder' oral steroids. Popular among beginners and women. Still carries real risks, particularly to cholesterol and liver values.
Dianabol (Methandrostenolone)
Higher RiskOne of the oldest and most popular oral steroids. Known for rapid mass and strength gains, but with significant water retention and liver strain.