Why Private MD Labs?
90-day money-back guarantee Lab order in minutes Save a trip to the doctor Low prices since 2005 Labs within 2 miles
Sample image
Sample report
Hair loss checkup for identifying hormonal, nutritional, and inflammatory causes of thinning hair

Blood Test for Hair Loss and Thinning Hair

Hair Loss Checkup

  • Checks reasons for hair thinning.
  • Identifies hair loss causes.
  • Finds hair health indicators.
First results as soon as overnight*

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

90 day happiness guarantee

We stand behind our service

Prescription & fees included

Go directly to the lab, no extra fees

Easy to understand results

With friendly doctor's notes & guidance

Fast & convenient

Lab visit as quick as 10 mins in & out

What's this test for?

This test is ideal if you're experiencing noticeable hair thinning, shedding, or bald patches and want to understand why. It helps identify whether hormonal imbalances, nutrient deficiencies, thyroid problems, or inflammation might be causing your hair loss. Many people use this test when they've tried hair products without success and want to address the root cause from the inside out.

How should I prepare for this test?

Fasting: 12 hours

You should fast for 12 hours before your blood draw, meaning no food or beverages except water. If you use testosterone cream, avoid applying it to the inner elbow area for at least 24 hours before testing to prevent falsely elevated results. If you're taking high-dose biotin supplements (more than 5 mg per day), wait at least 8 hours after your last dose before getting your blood drawn, as biotin can interfere with certain test results.

What's included in this test?

Ana Screen, Ifa C-Reactive Protein Ferritin Iron, Total Dihydrotestosterone, LC/MS/Ms Vitamin B12

This comprehensive panel measures key hormones that affect hair growth including testosterone, DHT, and thyroid function (TSH, T3, T4), which can impact hair follicle health and growth cycles. It evaluates critical nutrients like iron, ferritin, vitamin B12, and vitamin D that are essential for strong hair growth. The test also checks inflammation markers (CRP), autoimmune indicators (ANA), metabolic health, and complete blood count to identify underlying conditions contributing to hair loss.

What happens after I get my results?
You'll receive detailed doctor notes in simple language explaining what your hormone levels, nutrient status, and inflammation markers mean for your hair health. These notes include personalized recommendations like dietary changes, supplement suggestions for deficiencies, stress management tips, or whether you should consult a dermatologist or endocrinologist. You'll also get the standard lab report and can track your levels over time using our trends feature to monitor how your interventions are working as your hair recovers.
When will I get my results?
Your results will typically be ready within 7 business days after your blood sample is collected. In some cases, if additional confirmation testing is needed for certain biomarkers, the turnaround time may be extended slightly. You'll receive an email notification as soon as your results are available in your secure online account.
Who should consider getting this test?
This test is ideal for anyone experiencing increased hair shedding, thinning hair, receding hairline, or bald patches. It's particularly useful for women with irregular periods or PCOS, people with family history of thyroid disease or autoimmune conditions, and those who've noticed hair changes after stress, pregnancy, or dietary changes. If you've been losing more than 100 hairs daily or notice hair coming out in clumps, this test can help identify the cause.
What symptoms indicate I may need this test?
You may need this test if you notice more hair in your brush or shower drain than usual, widening part lines, visible scalp, or thinning at the temples or crown. Other signs include brittle or slow-growing hair, hair that breaks easily, eyebrow thinning, or if you're also experiencing fatigue, weight changes, cold sensitivity, or mood changes. Hair loss accompanied by skin changes or scalp inflammation may also warrant testing.
How can I naturally support healthy hair growth?
Support hair health by eating protein-rich foods like eggs, fish, and legumes, plus iron-rich foods like spinach, red meat, and lentils. Include biotin sources like nuts, seeds, and sweet potatoes, and ensure adequate vitamin D through sunlight or supplements. Manage stress through yoga or meditation, get 7-8 hours of quality sleep, and avoid harsh chemical treatments or tight hairstyles that pull on hair. Gentle scalp massage can improve circulation to hair follicles.
What does high DHT mean for hair loss?
High DHT (dihydrotestosterone) levels can shrink hair follicles, particularly on the scalp, leading to progressively thinner and shorter hair growth over time. This is the primary hormone involved in pattern baldness for both men and women. Elevated DHT makes the growth phase of hair shorter and the resting phase longer, eventually causing follicles to stop producing visible hair.
What causes low ferritin and hair loss?
Low ferritin (stored iron) is one of the most common nutrient deficiencies linked to hair loss, especially in women. It can result from heavy menstrual periods, vegetarian or vegan diets without proper iron supplementation, digestive issues that impair iron absorption, or chronic inflammation. Even if you're not anemic, low ferritin stores mean your body prioritizes vital organs over hair growth, leading to increased shedding.
How often should I retest after starting treatment?
If you've started supplements for nutrient deficiencies, retest in 8-12 weeks to see if your levels are improving. For thyroid-related hair loss, retest thyroid function every 6-8 weeks after medication adjustments until levels stabilize. Since hair growth cycles take 3-6 months, you may not see visible hair improvement until several months after your blood markers normalize, so patience and consistent monitoring are important.
How’s this work?
Getting your blood test with us is easy, private & backed by the power of science.

Long story short:
  1. In the test options, use the filters or search box to narrow your choices and find the test you want.
  2. 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.
  3. 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.
  4. 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.
  5. 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.
  6. 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.
  7. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!
  8. 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.
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.

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

You get clinical lab reports & simplified health insights.
Save time & gas, go straight to the lab. Our doctors cover the rest.
Results start landing the next day after your lab visit.*
We don’t sell or share your data. Your time & privacy matter.
US-licensed doctors have your back if things get unclear.
No hidden fees, nice discounts for regular checkups.
Save a trip to the doctor, go directly to the lab
Instant orders, results often overnight*
Results explained in simple language
Reviewed by US licensed doctors
Fast & confidential, we never sell or share your data
No insurance needed, transparent pricing
Demo results
Ferritin 18 ng/mL
Demo results
Low Optimal 30 - 200 High
18 ng/mL

What this means

Your ferritin levels are below the optimal range, which is one of the most common causes of hair loss and thinning, especially in women. Low iron stores mean your body prioritizes vital organs over hair growth, leading to increased shedding and slower regrowth. Addressing this deficiency can significantly improve hair health over the next few months.

* Regular blood test results (e.g., CBC) typically start arriving the next business day after sample collection. More complex tests, such as hormone panels, may take up to 10–15 business days due to their complexity.
Here’s how easy it is to get blood work done on your terms
Choose a checkup
Order your test Save a trip to the doctor. Your results will come with clear, friendly explanations. Takes 2 minutes
Book a lab
Book an appointment Visit any of our 4,000 nearby lab locations to have your samples collected. Book or walk-in
Choose a checkup
Get results Receive a clear, easy-to-digest health report by email & SMS within a few business days. Get answers, fast

Blood Test for Hair Loss and Thinning Hair

  • Checks reasons for hair thinning.
  • Identifies hair loss causes.
  • Finds hair health indicators.
Still got questions? Text our super-cool support team at 754-799-7833 to get help finding your ideal checkup.

Ask Me Anything

Your 24/7 Personal Lab Guide

Quick questions:

What does this test measure?
How do I get $497 in free labs? 🎁
Do I need to fast for this test?
When will I get my results?
A

Hi, I'm here to make labs simple, clear, and stress-free. Not sure where to start? That's okay. Tell me what's going on and I'll guide you from there.

I can help you:

  • choose the right test
  • prepare for your lab visit
  • take the next step with confidence and more
Just now
A
Not finding what you need? Text 754-799-7833, we've got you.
We provide helpful guidance, not medical diagnoses. For medical decisions, consult a licensed professional.