Testosterone: How It Works, What It's Studied For & Safety
Testosterone is the principal endogenous androgen in men and a key hormone in women; FDA-approved for hypogonadism and dispensed in many forms including compounded subcutaneous pellets. Clinicians consider it for male hypogonadism (FDA-approved). Compounded variants are dispensed by Wells Pharmacy Network only after a clinician evaluation.
Also known as: T, Androgel, Testopel
How does Testosterone work?
Testosterone binds the androgen receptor in muscle, bone, brain, and reproductive tissues, regulating libido, erythropoiesis, body composition, and bone mineralization. Local conversion to estradiol (via aromatase) and DHT (via 5α-reductase) drives some of its tissue-specific effects.
What is Testosterone studied for?
- Male hypogonadism (FDA-approved)
- Female hypoactive sexual desire disorder in selected postmenopausal patients (off-label)
- Body-composition, bone-density, and quality-of-life support in adults with documented deficiency
How is Testosterone taken?
FDA-approved as transdermal gels, intramuscular and subcutaneous injections, and the Testopel pellet. Compounded subcutaneous pellets, creams, and combination products (with anastrozole, gonadorelin, or PT-141) exist for clinician-directed protocols.
Is Testosterone FDA-approved? Is it safe?
FDA-approved as a finished drug product when prescribed under its labeled indications. Compounded variants on this site are separate from the branded product and are dispensed only when a clinician determines a compounded preparation is appropriate. Schedule III controlled substance. Hematocrit, lipids, PSA (in men), and estradiol require monitoring. Not appropriate during fertility-active windows without an HPG-axis-preserving plan. Compounded prescription-only preparations are dispensed by Wells Pharmacy Network. Eligibility is decided by a licensed clinician based on intake and labs, not by checkout. Compounded products on this site are not FDA-approved and are not generic equivalents of any branded medication.
In the Regen Therapy catalog
This compound does not currently appear in an active Regen Therapy protocol. Browse the full catalog for adjacent options.
What does the research say about Testosterone?
Endocrine Society guidelines (Bhasin et al., 2018) and the TRAVERSE cardiovascular outcomes trial (2023) inform contemporary practice.
Citations & further reading
Considering Testosterone as part of a protocol?
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