🔍 Low T? Rule Out the Reversible Causes First

♂ Built for men · 11 markers · $211.50 with code CAMERON ~~$235.00~~

Fatigue, low libido, poor recovery, mood or body composition changes — and you're considering TRT. Read this before you start.

🩸 Order this exact panel — 10% off

All 11 markers load into your cart in one click. No doctor's visit, drawn at any Quest location in the US, results by email in about two weeks. Code CAMERON applies automatically.

Add all 11 markers — $211.50 → Open the full Bloodwork Vault →

Why this panel

TRT is, for most men, a permanent commitment: exogenous testosterone shuts down your own production and it may not come back. Before accepting that, it's worth knowing whether your low testosterone has a cause that can simply be fixed. Several of the most common causes are completely reversible.

💡 What most people missThe four reversible causes of low testosterone that get missed constantly: elevated prolactin (a pituitary adenoma is rare but a real and treatable cause), untreated sleep apnea, insulin resistance and visceral fat (adipose tissue converts testosterone to estradiol via aromatase), and iron overload from hemochromatosis. All four are on this panel. Also critical: testosterone must be confirmed on two separate morning draws before diagnosis. Levels swing 20–30% day to day and drop sharply through the afternoon — a single low reading at 3pm means very little, and a lot of men are started on lifelong therapy from exactly that.

⏰ When to get it drawnBetween 7am and 10am, fasted, on two separate days. This is not optional — it is the difference between a real diagnosis and a scheduling artefact.

What's inside

This panel covers 11 markers chosen for this specific situation. The full list, the clinical reasoning behind each marker, draw timing and how to interpret your results are available to Academy members.

🔒 Panel and protocol are inside the Academy

Every marker and why it's here — plus the full evidence-graded Low Testosterone protocol: how to tell reversible low T from the permanent kind, every reversible cause worked through in order of effect size, the restart options with their trial data, and the peptides pointed the wrong way. $10/mo, cancel anytime.

Unlock the full panel →

Free marker breakdowns

These explainers are free: what each one measures, the optimal range rather than just the lab range, and what actually moves it.

Total Testosterone Free Testosterone SHBG (Sex Hormone-Binding Globulin)Estradiol, Sensitive (LC/MS-MS)LH & FSH Prolactin

Frequently asked questions

What blood tests are in the Low T? Rule Out the Reversible Causes First panel?

11 markers: Total T [LC/MS] & Free T [Eq. Dialysis], SHBG (Sex Hormone-Binding Globulin), LH & FSH, Prolactin, Estradiol, Sensitive [LC/MS-MS], TSH (Thyroid-Stimulating Hormone), Insulin (Fasting), HbA1c (Hemoglobin A1c), Ferritin, Complete Blood Count (CBC) w/ Differential, Vitamin D (25-Hydroxy).

How much does the Low T? Rule Out the Reversible Causes First panel cost?

$235.00 before discount, $211.50 with code CAMERON applied automatically. Individual markers add a one-time $10 draw fee. Ordered through Marek Diagnostics and drawn at any Quest Diagnostics location in the US.

Do I need a doctor's order for these tests?

No. These are ordered direct-to-consumer through Marek Diagnostics — you order online, walk into a Quest location, and results are emailed to you in about two weeks. No physician visit or insurance required. Not available in NY, NJ or RI.

When should I get the Low T? Rule Out the Reversible Causes First panel drawn?

Between 7am and 10am, fasted, on two separate days. This is not optional — it is the difference between a real diagnosis and a scheduling artefact.

Important: This page is education only, not medical advice and not a diagnosis. A panel is a starting point for a conversation with a clinician, not a substitute for one. Reference ranges vary by laboratory and assay — always compare against the range printed on your own report.