
Testosterone Foundation Panel
Most testosterone testing tells you how much testosterone you have. It doesn't tell you how well your body actually uses it, and that's the difference between two men with identical labs who feel completely different. This panel is built to answer both questions in one test.
It reads your testosterone from the inside out. On the blood side, 80+ biomarkers map your full hormonal and metabolic picture, including total and free testosterone by gold-standard methods (LC/MS and equilibrium dialysis), estradiol, sex hormone-binding globulin (SHBG), and the LH and FSH that reveal why your testosterone sits where it does.
On the genetic side, an androgen receptor (CAG repeat) analysis measures how sensitive your body actually is to testosterone. Shorter repeats mean a stronger response at lower levels. Longer repeats can explain low-T symptoms even when your labs read normal, which is why some men see every sign of low testosterone despite a normal result.
Enhance your insights with

Testosterone Foundation Panel
What's tested
Androgen Receptor Gene Analysis
Hormones
Thyroid
Prostate Health
Cardiovascular
Metabolic & Organ Function
Complete Blood Count
Iron Panel
Vitamins & Minerals
Lab panel details

Sample type: Blood & Saliva

HSA/FSA: Accepted

Results: Emailed to you

Preparation:

Meets treatment requirements: Yes
Start with the full picture
Built for men testing their testosterone for the first time who want the full picture before making any decisions, especially those with low-T symptoms despite normal labs.
- Low libido
- Fatigue that sleep doesn't fix
- Losing strength or muscle
- Labs your doctor called "normal"
- Never had testosterone tested
- Considering TRT but not sure yet
How it works
You're measuring two different things, so it takes two samples: a blood draw for where your levels are now, and a saliva sample for your genetics.
Purchase your tests
After checkout, you'll get an email with your lab order form, next steps, and tips for collecting your samples.
Complete your blood draw
Visit a Quest location near you to give your blood sample. Results come back in about 14 business days.
Complete your saliva kit
We'll mail you a collection kit. Provide your saliva sample at home and mail it back in the prepaid packaging. Results take about 2 to 3 weeks.

Lab panels designed by Board Certified Medical Practitioners
All of our expertly built lab panels are designed by a team of Board Certified Medical Practitioners who lead the charge in preventative medicine.
Lab work FAQs
Please read our FAQs page to find out more.
How quickly will my lab results arrive?
Your lab results will typically arrive within two weeks, though processing time may vary based on the size and complexity of your panel. Rest assured, once your results are ready, they will be securely delivered to your email. No waiting rooms. No chasing paperwork. Just precision diagnostics at your fingertips.
Does Marek Diagnostics accept insurance?
Marek Diagnostics is a cash-pay service. Our platform offers direct access to comprehensive testing without the limitations, denials, or delays imposed by insurance companies. If traditional insurance covered the kind of proactive, high-quality lab work we offer, Marek Diagnostics wouldn’t need to exist.
However, many clients successfully use their HSA/FSA to cover their testing costs. Marek Diagnostics is partnered with TrueMed for convenient deployment of HSA/FSA funds at checkout.
Why can’t I order labs in New York, New Jersey, or Rhode Island?
Due to state regulations, Quest services are not available to residents of NY, NJ, or RI when ordered through our platform. If your address is in one of these states, you'll be notified at checkout and won’t be able to complete your order for restricted items.
You can still purchase:
- Supplements, apparel, and other non-lab items
Not sure which items are restricted? The checkout system will alert you automatically, or you can contact our team for assistance.
My panel Meets Treatment Requirements — what does that mean?
Marek Diagnostics is an extension of Marek Health, the leading health optimization platform designed to turn your results into informed action.
If your panel Meets Treatment Requirements, you’re eligible to enroll into Guided Optimization, an exclusive program that connects you with:
- Detailed, expert led lab analysis
- A consultation with a Marek Health coach and board-certified medical provider
- A precision health optimization plan
- Access to high-quality treatment options
If you’re unsure what to do with your results, Marek Health is the bridge between lab results and achieving your goals.
Do I need to pay a separate fee at the lab to get my blood drawn?
No additional payment is required at the lab. Our expert-built panels include the venipuncture and if you’re building a custom panel or testing biomarkers individually, a $10 venipuncture fee will be automatically added at checkout.









