At a glance
Effects
- Muscle growth: Androgen receptor activation drives skeletal muscle protein synthesis and nitrogen retention, supporting lean mass gains [1].
- Strength: Elevated testosterone increases neuromuscular efficiency and contractile protein production, improving strength output [5].
- Recovery: Supraphysiological testosterone accelerates recovery from training by reducing muscle breakdown (catabolism) [2].
- Libido & well-being: Restoring or elevating testosterone levels is linked to improved sexual drive, mood, and energy in hypogonadal and eugonadal men [8].
- Gynecomastia / water retention: Aromatisation to estradiol raises estrogen levels; excess estrogen drives breast-tissue growth and fluid retention [6].
- Androgenic effects: DHT conversion causes acne, oily skin, and accelerated scalp hair loss in genetically predisposed users [7].
- Endogenous suppression: Exogenous testosterone suppresses the HPG axis, reducing LH and FSH; testicular atrophy and reduced sperm production can follow [9].
Anabolic-androgenic steroid (AAS)
~2 days (elimination t½); mean residence ~4 days [4]
Intramuscular injection (oil solution) [1]
Every 2–3 days required [1]
~2–3 weeks (anti-doping screens; short-ester advantage) [4]
About Testosterone Propionate
Every point here is drawn from public medical and harm-reduction sources. A bracketed number after a claim — like [1]— is a reference: tap it to open the exact source it's based on (numbered list at the bottom). It is not a rating or score. Educational information, not medical advice.
Product specifics
- Est. delivery
- 3–7 business days · EU tracked
Product details as stated by the vendor (claims, not independently verified). Delivery is our standard EU estimate.
What it is
Testosterone Propionate is a synthetic, short-acting esterified form of testosterone — the primary male androgen — classified as an anabolic-androgenic steroid (AAS) [1]. It is used medically for testosterone replacement therapy (TRT) in male hypogonadism and is also used off-label by athletes and bodybuilders to increase muscle mass and performance [2].
How it works
After intramuscular injection, the propionate ester is cleaved by esterases in the body, releasing free testosterone into the bloodstream [3]. The esterification dramatically extends the half-life compared to unesterified testosterone, which has a half-life of as little as 10 minutes [4]. Once free, testosterone acts as a full agonist at the androgen receptor (AR), driving protein synthesis, nitrogen retention, and secondary male sex characteristics [5]. Testosterone also aromatises (converts) to estradiol via the enzyme aromatase, which accounts for its estrogenic side effects such as gynecomastia and water retention [6]. It can also be converted to dihydrotestosterone (DHT) by 5-alpha reductase, contributing to androgenic effects like acne and hair loss [7].
Risks & side effects
Most important: Supraphysiological testosterone use negatively shifts the lipid profile — lowering HDL and raising LDL — and may increase the risk of major adverse cardiovascular events (MACE) including heart attack and stroke [6][10]. This cardiovascular risk is the single most clinically significant concern with long-term or high-dose use.
Common
- Pain, redness and swelling at the injection site [7]
- Acne and oily skin due to DHT conversion [5][7]
- Increased body and facial hair growth [5]
- Water retention and bloating from elevated estrogen [6]
- Gynecomastia (breast tissue enlargement in males) [6]
- Increased sweating, headache, dizziness [8]
- Suppression of natural testosterone production [9]
Serious
- Adverse lipid changes: reduced HDL, elevated LDL — elevating cardiovascular disease risk [6][10]
- Polycythemia (raised red blood cell count), increasing blood-clot and stroke risk [11]
- Venous thromboembolism [11]
- Worsening of benign prostatic hyperplasia (BPH); potential growth of sub-clinical prostate cancer [11]
- Suppression of spermatogenesis and fertility impairment [9][11]
- Testicular atrophy with prolonged use [9]
- Virilization in women (deepened voice, clitoral enlargement, menstrual disruption) — many effects irreversible [7]
- Edema in patients with pre-existing cardiac, hepatic, or renal disease [10]
Safety & harm reduction
- Known or suspected prostate or breast carcinoma in males [3]
- Hypersensitivity to testosterone or formulation excipients [3]
- Pregnant or potentially pregnant women (teratogenic — causes fetal virilization) [3]
- Severe cardiac, hepatic, or renal disease (exacerbates oedema and complications) [3]
- Women with hormone-sensitive conditions without specialist supervision [7]
- Serum total and free testosterone, estradiol — baseline and on-cycle [8]
- Full lipid panel (HDL, LDL, triglycerides) — cardiovascular risk [6]
- Complete blood count (CBC) / haematocrit — screen for polycythemia [11]
- PSA and digital rectal exam — prostate surveillance [11]
- Liver function tests with high-dose or prolonged use [3]
- Blood pressure monitoring [6]
- LH, FSH, and sperm count if fertility is a concern [9]
- Anticoagulants (e.g., warfarin): testosterone potentiates anticoagulant effect — increased bleeding risk; INR monitoring required [12]
- CYP3A4 inducers (rifampin, phenytoin): accelerate testosterone metabolism, may reduce efficacy [12]
- CYP3A4 inhibitors (ketoconazole, erythromycin): slow metabolism, raising plasma testosterone and side-effect risk [12]
- Insulin / oral antidiabetics: androgens may alter glucose metabolism — dose adjustment may be needed [11]
- Corticosteroids: additive oedema risk [11]
- Aromatase inhibitor (AI, e.g., anastrozole) on hand — use only if estrogenic symptoms appear; do not use prophylactically [13]
- Post-cycle therapy (PCT) with a SERM (e.g., Nolvadex/tamoxifen or Clomid) after cycle to stimulate HPG axis recovery and restore endogenous testosterone [9][13]
- For Test-P, PCT can begin earlier (within ~3–5 days of last injection) due to short ester clearance [9]
- Rotate injection sites to reduce localised pain and abscess risk [7]
- Sterile technique (single-use needles, alcohol wipes) mandatory to prevent infection [7]
Dosage context
Medical TRT doses are commonly reported at 25–50 mg every 2–3 days [1][2] and are not a prescription. Off-label performance use at supraphysiological levels is reported in community sources at higher amounts, though no safe supraphysiological dose exists and sources vary considerably. Short-ester propionate cycles are reported at 8–10 weeks in community guides [13], shorter than long-ester equivalents. All dosing must be guided by a qualified healthcare professional.
Sources
- 1.Wells Pharmacy Network – Testosterone Propionate Injection
- 2.Hims – Testosterone Propionate: Uses, Side Effects, and Benefits
- 3.Empower Pharmacy – Testosterone Cypionate / Propionate Injection (contraindications & hepatic risks)
- 4.Wikipedia – Testosterone Propionate
- 5.ChemicalBook – Uses and Side Effects of Testosterone Propionate (AR agonist mechanism)
- 6.Synapse/PatSnap – Side Effects of Testosterone Propionate (aromatization, DHT, CV)
- 7.1mg – Testosterone Propionate: Uses, Side Effects and Medicines
- 8.Synapse/PatSnap – What is Testosterone Propionate Used For? (suppression, PCT, interactions)
- 9.TestoDepot – Testosterone Propionate Half-Life & Duration Basics
- 10.FDA – Testosterone Cypionate Injection Prescribing Information (cardiovascular / MACE warning)
- 11.ClinicalTrials.gov – Adverse Events of Testosterone Administration (polycythemia, prostate, sleep apnea)
- 12.Synapse/PatSnap – Drug Interactions of Testosterone Propionate
- 13.Roidly – Testosterone Cycle Guide: Dosage, PCT & Bloodwork (PCT/AI protocols)
This information is provided for educational and harm-reduction purposes only. It is not medical advice. These substances can carry serious health risks; effects and safe use vary by individual. Consult a qualified healthcare professional before use. Legal status varies by country — it is your responsibility to know your local law. We do not encourage misuse.
Other options for Testosterone Propionate· 11 offers
Same compound from different labs/brands and pack sizes. Tap a row to switch brand — the price and buy button update instantly.
This compound comes in different forms (e.g. injectable vs oral vs topical). Cost per mg is only comparable within the same form.
| Brand | Form | Strength | Pack | Price | Per mg |
|---|---|---|---|---|---|
Driada | vial | 100 mg/ml | 10 ml | 36,90 € | ★€0.037/mg |
Generic | topical-lotion | 100 mg/ml | 10 ml | 38,90 € | €0.039/mg |
Generic | vial | 150 mg/ml | 10 vial | 48,90 € | — |
Generic | vial | 100 mg/ml | 10 ml | 48,90 € | €0.049/mg |
Generic | ampoule | 100 mg/ml | 10 ampoule | 53,90 € | — |
Generic | vial | 100 mg/ml | 10 ml | 54,90 € | €0.055/mg |
Generic | vial | 100 mg/ml | 10 ml | 64,90 € | €0.065/mg |
Generic | vial | 100 mg/ml | 10 ml | 68,90 € | €0.069/mg |
Hemi Pharma | vial | 100 mg/ml | 10 ml | 89,90 € | €0.090/mg |
GenericSelected | vial | 100 mg/ml | 10 ml | 94,90 € | €0.095/mg |
Generic | vial | 100 mg/ml | 100 ml | 600,00 € | €0.060/mg |
Substance reviews(6)
Independent reviews of this compound from the wider market — about the substance, not our delivery. Showing the 4 with written feedback.
- ★★★★★25 days ago
10 STARS SUPR STEALTH REPEAT BUYER
- ★★★★★2 months ago
All good
- ★★★★★3 months ago
Perfection. Will order again very soon
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- ★★★★★6 months ago
Very Very quick transaction. Excellent