Testosterone Cypionate
Testosterone 17β-cyclopentylpropionate. Anabolic Androgenic Steroid (AAS), testosterone ester.
This page describes what Testosterone Cypionate is and its known risks. It is not medical advice and not a guide to using it. Many of these substances are prescription-only or illegal to use without a prescription. Speak to a doctor.
- Class
- Anabolic Androgenic Steroid (AAS)
- Legal status
- Schedule 4 (South Africa) / Schedule III (USA)
- Half-life
- 8-12 days
- Liver strain
- Low
- Kidney strain
- Low-Moderate
- Converts to estrogen
- High (converts to estradiol)
- Suppresses natural hormones
- Yes
Medical uses
- Testosterone Replacement Therapy (TRT)
- Male hypogonadism
- Delayed puberty in males
What it does in the body
Anabolic
- Increased protein synthesis
- Increased nitrogen retention
- Increased muscle mass
- Increased strength
- Enhanced recovery
- Increased red blood cell production
Androgenic
- Increased libido
- Improved mood and well-being
- Increased aggression (dose-dependent)
- Deepening of voice
- Body hair growth
Forms, half-life and detection
| Form | Half-life | Reported detection window |
|---|---|---|
| Injectable (Intramuscular) | 8-12 days | 3-6 months |
Side effects and health risks
Estrogenic
- Gynecomastia (breast tissue development)
- Water retention
- Increased blood pressure
- Fat gain (if estrogen not controlled)
Androgenic
- Acne and oily skin
- Male pattern baldness (in genetically predisposed)
- Prostate enlargement
- Increased body hair
Heart and blood vessels
- Increased LDL cholesterol
- Decreased HDL cholesterol
- Increased blood pressure
- Left ventricular hypertrophy (long-term)
- Increased hematocrit (polycythemia)
Liver
- Minimal liver toxicity (injectable ester)
Hormones and fertility
- Suppression of natural testosterone production
- Testicular atrophy
- Reduced sperm count
- Suppression of LH and FSH
Mood and mind
- Mood swings
- Increased aggression
- Anxiety
- Depression (particularly post-cycle)
Blood tests worth monitoring
From its known properties, these are the markers doctors commonly check. Getting blood work before, during and after is how problems are caught early.
- Androgens tend to lower HDL, raise LDL and thicken the blood: HDL Cholesterol, LDL Cholesterol, Hematocrit, Hemoglobin
- Aromatisation: High (converts to estradiol): Estradiol (E2)
- Shuts down natural production (PCT needed): Total Testosterone, LH, FSH
Related compounds
Questions
What is the half-life of Testosterone Cypionate?
About 8-12 days. Half-life is the time for the level in the blood to fall by half.
How long is Testosterone Cypionate detectable?
Testing windows of 3-6 months are reported, depending on the test and the person.
Is Testosterone Cypionate legal?
Schedule 4 (South Africa) / Schedule III (USA). Laws differ by country and change; check the rules where you live.
What blood tests matter with Testosterone Cypionate?
Based on its properties, these markers are commonly monitored: HDL Cholesterol, LDL Cholesterol, Hematocrit, Hemoglobin, Estradiol (E2), Total Testosterone, LH and FSH. A doctor can order and interpret them.
What are the side effects of Testosterone Cypionate?
Estrogenic: gynecomastia (breast tissue development), water retention and increased blood pressure. Androgenic: acne and oily skin, male pattern baldness (in genetically predisposed) and prostate enlargement. Heart and blood vessels: increased ldl cholesterol, decreased hdl cholesterol and increased blood pressure.
For information only, not medical advice. MyoStats is a tracking tool used at your own discretion. Speak to a doctor before changing your training, diet, medication or anything you take.