Testosterone therapy, without the guesswork
Injection technique, dosing, and the bloodwork that actually matters — written from primary sources and reviewed by a clinician.
Open the TRT dose calculator →TRT guides
TRT
SubQ vs IM Testosterone: Subcutaneous or Intramuscular?
IM vs SubQ testosterone compared: blood levels, dose, pain, labels and how to switch routes.
12 min read
TRTHow to inject testosterone
Step-by-step for SubQ and IM, with sites and technique.
8 min read
TRTTRT bloodwork: what and when
The panels that matter and the timing that makes them valid.
9 min read
TRTTRT Microdosing: Daily & EOD Doses, With Calculator
Daily and EOD protocols for steadier levels, plus a calculator and a mg → mL → units table.
7 min read
TRTTRT results timeline
What to expect week by week and month by month.
8 min read
TRTTestosterone Ester Half-Lives: Cypionate, Enanthate, Propionate & Blends
What labels and studies report for each ester — and why Test 400 and other blends have no single half-life.
12 min read
TRTTestosterone Cypionate vs Enanthate
Near-identical curves; what actually differs is the oil, the device, availability and how a switch is handled.
10 min read
TRTHigh Hematocrit on TRT: Thresholds, Causes and What Doctors Do
Guideline hematocrit cutoffs, why injections raise it most, and how prescribers respond — from dose changes to phlebotomy.
11 min read
TRTEstradiol on TRT: Normal Range, Symptoms and Aromatase Inhibitors
Why E2 rises on TRT, sensitive vs standard assays, and what guidelines say about aromatase inhibitors.
9 min read
TRTTRT vs Enclomiphene: How They Differ for Low Testosterone
Mechanism, fertility, evidence and regulatory status — enclomiphene is not FDA-approved.
9 min read
TRTTRT Side Effects: What's Common, What's Serious, What to Monitor
Acne, hematocrit, blood pressure, fluid, sleep apnea and fertility — what the labels, guidelines and TRAVERSE say.
12 min read
TRThCG on TRT: Fertility, Testicular Size and the Evidence
Why TRT suppresses sperm production, what hCG co-therapy studies found, and hCG's status as a biologic since 2020.
10 min read
TRTTestosterone Gel vs Injections: Levels, Side Effects and Practicalities
Blood levels, hematocrit, skin transfer and daily routine compared from the labels and studies.
11 min read