What's this test for?

This test is ideal if you're experiencing persistent brain fog, difficulty concentrating, memory problems, or mental fatigue that interferes with your daily life. It helps identify underlying causes like nutritional deficiencies (B12, folate, iron, vitamin D), thyroid dysfunction, hormonal imbalances, or inflammation that may be affecting your cognitive function. Many people use this test when they feel mentally sluggish but can't pinpoint why, seeking concrete answers about what's impacting their mental clarity and focus.

What happens after I get my results?

You'll receive detailed doctor notes in simple language explaining what your nutrient levels, hormones, and inflammatory markers mean for your brain function and mental clarity. These notes include personalized recommendations like dietary changes, specific supplements to address deficiencies, lifestyle adjustments for better focus, or whether you should follow up with a specialist. You'll also get the standard lab report and can track your biomarker levels over time using our trends feature to see how your interventions improve your cognitive performance.

What's included in this test?

This panel measures Vitamin B12, Folate, Ferritin, Iron, Magnesium, Vitamin D (25-OH D2, D3, Total), TSH, Free T4, T3 Uptake, Total T4, Cortisol, DHEA Sulfate, Testosterone (Free and Total), Estradiol, SHBG, Hemoglobin A1C, Glucose, Complete Blood Count (CBC with Differential), Comprehensive Metabolic Panel (CMP including liver and kidney function, electrolytes), High-Sensitivity CRP, ANA Screen, Anti-dsDNA Antibodies, Rheumatoid Factor, Gliadin Antibodies (IgA, IgG), and Complement C3c. This comprehensive panel evaluates nutritional deficiencies that commonly cause brain fog, including Vitamin B12, folate, iron, ferritin, magnesium, and Vitamin D, all critical for cognitive function and energy production. It checks thyroid function (TSH, T3, T4) to identify metabolism issues affecting mental clarity, measures hormones like cortisol, DHEA, testosterone, and estradiol that impact mood and focus, and assesses inflammatory markers (CRP, ANA, rheumatoid factor) and metabolic health through complete blood count and comprehensive metabolic panels.

How should I prepare for this test?

You should fast for 12 hours before your blood draw, consuming only water during this time. Schedule your test in the morning, as iron and other biomarker levels can change throughout the day. If you take high-dose biotin supplements (over 5 mg/day), stop taking them at least 72 hours before testing to avoid interference. Avoid applying testosterone cream to the inside of your arm for 24 hours before the test, and if you're on prednisone or prednisolone therapy, consult with your doctor as it may affect cortisol results.

When will I get my results?

You can expect to receive your results within 7 business days after your sample is collected. If any confirmatory testing is required for specific biomarkers, the turnaround time may be extended slightly. You'll be notified as soon as your comprehensive results are ready to view online.

Who should consider getting this test?

This test is perfect for anyone experiencing ongoing mental cloudiness, forgetfulness, difficulty concentrating at work or school, or feeling like your thinking is slower than usual. It's especially valuable for people with unexplained fatigue alongside cognitive issues, those with dietary restrictions that may cause deficiencies, individuals under chronic stress, or anyone whose brain fog hasn't improved with basic lifestyle changes. If you're struggling to stay focused and productive despite getting adequate sleep, this test can help identify the root cause.

What symptoms indicate I may need this test?

Common symptoms include difficulty finding words or completing thoughts, trouble remembering names or recent events, feeling mentally exhausted even after rest, struggling to focus on tasks or conversations, and a general sense of mental fuzziness or confusion. You might also experience related symptoms like fatigue, mood changes, sensitivity to cold, unexplained weight changes, or low motivation. If these symptoms are interfering with your work, relationships, or daily activities, this test can help identify treatable causes.

How can I naturally support better focus and mental clarity?

Start by prioritizing 7-9 hours of quality sleep each night and staying well-hydrated throughout the day, as dehydration significantly impacts cognitive function. Include brain-healthy foods rich in omega-3 fatty acids (fatty fish, walnuts), B vitamins (eggs, leafy greens, legumes), iron (red meat, spinach, lentils), and magnesium (nuts, seeds, whole grains). Regular exercise improves blood flow to the brain, while stress management through meditation or deep breathing reduces cortisol levels that can impair memory and focus. Limiting processed foods, sugar, and alcohol also helps maintain steady blood sugar and mental clarity.

What does low Vitamin B12 mean?

Low Vitamin B12 can significantly impact brain function, causing brain fog, memory problems, difficulty concentrating, and mental fatigue. B12 is essential for producing myelin, the protective coating around nerves that allows proper signal transmission in the brain. Low levels are common in vegetarians, vegans, people over 50, and those with digestive issues that impair absorption. Supplementation and dietary changes can usually restore levels and improve cognitive symptoms within weeks to months.

How often should I retest for brain fog issues?

If you're addressing nutritional deficiencies or starting new supplements, retesting in 8-12 weeks helps confirm your levels are improving and your interventions are working. For thyroid or hormone imbalances requiring treatment, your doctor may recommend retesting every 6-8 weeks initially until levels stabilize. Once your brain fog improves and biomarkers normalize, annual testing helps ensure you maintain optimal levels. If symptoms return or worsen, retest sooner to catch any changes early.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

How do I know which test to get?

In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option. Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?

Absolutely! We totally understand that errors can happen. No worries, we're here to help you. Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you. There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out. Our lab requires an address to be listed to generate an order.

Do you accept health insurance?

Only HSA & FSA is accepted. Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts. This policy applies to all insurance companies, including federal health insurance programs like Medicare. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

Can I cancel my order?

Yes. We get it – sometimes your needs change. As long as your samples haven’t been collected yet, we’re happy to help you cancel your order. If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com. You can read more about our cancellation policy here.

How can I find a lab location near me?

During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp). Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

Brain Fog Test - Check Focus, Energy & Clarity

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

[email protected]

Blood Test for Brain Fog and Poor Focus

Brain Fog Panel

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

What's this test for?

How should I prepare for this test?

What's included in this test?

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

Blood Test for Brain Fog and Poor Focus

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

1,000,000+ blood tests later, here's what our customers say

Ask Me Anything

Blood Test for Brain Fog and Poor Focus

Brain Fog Panel

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

90 day happiness guarantee

Prescription & fees included

Easy to understand results

Fast & convenient

What's this test for?

How should I prepare for this test?

What's included in this test?

Here’s why 1,000,000+ customers chose us for affordable hassle-free private blood testing.

Blood Test for Brain Fog and Poor Focus

1,000,000+ blood tests later, here's what our customers say

Get $200 Give $200

Ask Me Anything

Get $200
Give $200