Marek Diagnostics Blog

Biomarkers To Monitor While On Testosterone Therapy

Biomarkers To Monitor While On Testosterone Therapy

Biomarkers to monitor on testosterone therapy include hematocrit, PSA, estradiol, and blood pressure. Get the guideline-based schedule and action thresholds.

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Hormone Blood Test: Fasting, Timing, And Draw Rules

Hormone Blood Test: Fasting, Timing, And Draw Rules

Fasting rules, draw timing by formulation, and biotin precautions for a hormone blood test. Based on Endocrine Society and AUA guidelines. Order labs today.

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What is Androgen Receptor Sensitivity Testing and Why it Matters

What is Androgen Receptor Sensitivity Testing and Why it Matters

Why do some men thrive on “normal” testosterone levels while others feel off?
The answer might lie beyond your lab values—in your androgen receptor genes. Learn how AR Sensitivity and AR Density shape your body’s response to testosterone, and why Marek’s AR-CAG test could be the missing piece in your hormone optimization journey.

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