TSH 3.5 Is 'Normal.' You Feel Off.
100+ biomarkers in one blood draw. TSH, Free T3, Free T4, thyroid antibodies, reverse T3. ~10 days. From $199/yr.
How Superpower works
Test 100+ markers
One blood draw tests TSH, Free T3, Free T4, reverse T3, and thyroid antibodies (TPO and thyroglobulin). TSH alone is a screening tool - the full panel is a diagnostic tool. Plus 100+ other biomarkers. $199/year.
Clear results
Standard lab ranges consider TSH up to 4.0 or even 4.5 'normal.' But optimal is 0.5-2.5. A TSH of 3.5 with low Free T3 and elevated antibodies is not normal - it's early autoimmune thyroid disease that will get worse without intervention.
Personalized plan
TSH is a pituitary hormone, not a thyroid hormone. It tells you what your brain is asking for, not what your cells are getting. Free T3 is the active hormone. Reverse T3 blocks it. You need both to understand thyroid function.
Answers 24/7
Our care team explains your TSH in context with your full panel. A 'normal' TSH with abnormal Free T3 or antibodies means something entirely different than a truly healthy thyroid. Results in ~10 days.
Add-on tests
Access advanced gut microbiome, toxins & cancer screenings anytime.
I've always eaten really healthy and had a healthy lifestyle... a bunch of my labs came back really wonky.
Rachel D.
early risk factors for diabetes
elevated heart disease risk
their speed of ageing
Biomarkers reveal the true state of your health
Liver Health
Alkaline Phosphatase (ALP), Aspartate Aminotransferase (AST), Albumin, Alanine Aminotransferase (ALT) +8 more
Heart
HDL Cholesterol, Triglycerides, LDL Cholesterol, Apolipoprotein B (ApoB), Lipoprotein (a) + 10 more
Kidney
Calcium, Potassium, Carbon Dioxide (CO2), Creatinine, Chloride, Sodium, Blood Urea Nitrogen (BUN) +2 more
Inflammation
High-Sensitivity C-Reactive Protein (hs-CRP), Erythrocyte Sedimentation Rate (ESR), Ferritin / CRP Ratio + 10 more
Energy
Ferritin, Cortisol, Total Iron Binding Capacity (TIBC), Iron Saturation, Iron, Total, Cortisol-to-DHEA-S Ratio
Nutrients
Protein, Vitamin D, Vitamin B-12, Hemoglobin, Hematocrit, Red Blood Cells, Mean Corpuscular Volume + 5 more
Metabolism
Glucose, Hemoglobin A1c (HbA1c), Uric Acid, Insulin, Corrected Calcium (Albumin-adjusted)
Immune System
White Blood Cells (WBC), Eosinophils, Lymphocytes, Basophils, Neutrophils, Monocytes, + 10 more
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Superpower tests more than 100+ biomarkers & common symptoms
“Turns out my chronic fatigue was from hormone imbalance. Not a single doctor could tell me that while Superpower caught it immediately. Now I’m taking action and supplements and have never felt better.”
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"For years I was gymming but not seeing results. My energy was low, recovery was slow, and no one could knew why. Superpower showed me my testosterone was out of range. With the right plan, I finally broke through”
"I didn’t realize fatigue and aches were signs of chronic inflammation.
Superpower caught the imbalance before it became more of a problem”
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"I always thought my tiredness was just part of a busy life. Superpower showed me my cortisol was out of balance. With a few changes, I finally feel energized again."
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"I used to feel constantly bloated and sluggish after meals. No one connected it to my gut health. With the right plan, my digestion is smoother, and I finally feel light and comfortable again."
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“Superpower uncovered cardiovascular imbalances I’d never checked. With a few changes, I feel sharper, younger, and more alive than I have in years."
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Developed by world-class medical professionals
Supported by the world’s top longevity clinicians and MDs.
Dr Anant Vinjamoori
Superpower Chief Longevity Officer, Harvard MD & MBA
Dr Leigh Erin Connealy
Clinician & Founder of The Centre for New Medicine
Dr Abe Malkin
Founder & Medical Director of Concierge MD
Dr Robert Lufkin
UCLA Medical Professor, NYT Bestselling Author
membership
$17
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Superpower
Membership
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The Superpower Baseline Panel is already comprehensive.
It covers 10 times more biomarkers than a typical annual physical.
The Advanced Panel is designed to go deeper, with three scenarios in particular.
- Uncovering risks that don’t show up in standard labs
Markers like Lp(a), LDL lipoprotein fractionation help identify cardiovascular risk even when cholesterol looks normal.
- Know what drives energy, metabolism and hormones
Tests like insulin, IGF-1, thyroid antibodies, and inflammatory markers explain symptoms that basic hormone tests can’t.
- Reveal deeper patterns
Inflammation, autoimmunity, and nutrient markers (e.g. homocysteine, ESR, thyroid antibodies) can show what’s driving long-term health trends.
Individuals with family history of heart disease, unresolved symptoms, or a desire to understand inflammation and hormone health especially benefit from testing.
Frequently Asked Questions
Read moreStandard lab ranges put normal TSH at 0.4-4.0 mIU/L, but many endocrinologists consider optimal TSH to be 0.5-2.5 mIU/L. A TSH above 2.5 with symptoms may indicate early thyroid dysfunction. Below 0.4 suggests hyperthyroidism. However, TSH alone doesn't tell the full story - Free T3, Free T4, and thyroid antibodies are needed for a complete assessment.
High TSH means your pituitary gland is working harder to stimulate your thyroid because thyroid hormone production is low. TSH of 4.0-10.0 is subclinical hypothyroidism. Above 10.0 is overt hypothyroidism. But TSH can be 'normal' at 3.5 while you still feel terrible - Free T3 and antibodies may reveal the problem TSH doesn't show.
Yes - TSH fluctuates throughout the day (highest in early morning, lowest in afternoon), with illness, stress, certain medications (biotin, steroids), and during pregnancy. This is why a single TSH reading isn't always reliable and why testing the full thyroid panel provides more stable, actionable information. Tracking TSH trends over time is more valuable than any single reading.
Sign up for membership, schedule a blood draw at a local lab or add at-home phlebotomist visit for $99. We test 90+ biomarkers from one draw, and you get results with personalized insights in about 10 days.
All samples are processed at CLIA-certified, CAP-accredited laboratories - the same labs used by major health systems. Our biomarker analysis meets the highest clinical standards.
- A trained phlebotomist will guide you through the process.
- A tourniquet is placed on your arm, the site is cleaned, and a small needle is used to collect blood into one or more tubes.
- Results are usually ready in about a week.
- Most people feel only a quick pinch.
- The needle is removed, gentle pressure is applied, and a bandage is placed.
- Drink plenty of water beforehand — hydration makes veins easier to find.
- Wear loose sleeves so your arm is easy to access.
- Follow any fasting instructions you’ve been given.
- Let us know if you’re on medications, have fainted before, or have needle anxiety.
- Press gently on the site for a few minutes.
- Keep the bandage on for 4-6 hours.
- Skip heavy lifting or strenuous exercise for the rest of the day.
- Drink extra water to rehydrate.
- Monitor the site for redness, swelling, or pain.
Your membership includes:
- An annual full body test and report across 100+ biomarkers
- A personalized action plan to optimize your biomarkers and reach your health goals
- A dashboard to centralize your health data and track changes across a lifetime
- Access to a health concierge for questions on your plan and help scheduling
- Plus a marketplace of curated health products and services cheaper than amazon
Many concierge clinics charge $10k – $100k for their services, we’ve built technology to make the world’s best healthcare as accessible as possible via an all-in-one membership.
Superpower is currently available in the following US states:
- Alabama
- Arizona
- California
- Colorado
- Connecticut
- Delaware
- District of Columbia
- Florida
- Georgia
- Idaho
- Illinois
- Indiana
- Kansas
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- South Carolina
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
Superpower specializes in prevention-based testing and treatments and is not intended for emergency or immediate health issues.
While you will have a Superpower care team, your annual membership is designed to complement a primary care doctor if you have one, not replace them.
We are happy to help you share any test results with an outside provider to ensure you receive well-rounded medical care.
Your annual lab test panel takes about a week to process. We will text you as soon as they become available in your dashboard. Other types of tests may have different testing windows. The Superpower concierge is your own health assistant who helps answer your questions on your results, ensure smooth scheduling, coordination of any office-based tests, specialist referrals as needed, and navigating you to interface with your care team.
Superpower membership and products are all eligible for HSA/FSA funding.
We see Superpower like a gym membership for those committed to prevention and performance. Superpower is a bridge between wellness and healthcare. Health insurance traditionally focuses on reactive care whereas, at Superpower, we believe it’s never too early to start looking out for your long-term health.
Absolutely — you're not limited to just one. Your membership includes one comprehensive 100+ biomarker blood test each year, but if you'd like to track your progress more closely, you can add extra tests at any time. Each additional full-panel test costs $179. You can order as many as you'd like throughout the year.
Health is your greatest superpower. It’s time to unlock it.
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