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Get clarity about your health

Choose from a wide range of lab testing options, including routine tests and specialty kits.

  • No hidden costs
  • No insurance required
  • HSA/FSA eligible
“The testing process was truly seamless and almost half of what I pay out of pocket elsewhere.”
Stephanie H • Client

Lab tests

Thyroid Health

Assess thyroid function to help investigate changes in energy, weight, and temperature tolerance.

  • Thyroid Function Package

    This panel checks how your thyroid is functioning and looks for signs of an autoimmune thyroid condition. It measures TSH, the signal that tells your thyroid to produce hormones, along with free T4 and free T3, the available forms of thyroid hormones that help regulate energy, metabolism, and body temperature. It also checks TPO antibodies, which are associated with autoimmune thyroid conditions, especially Hashimoto’s disease. Testing may help investigate fatigue, unexplained weight changes, sensitivity to heat or cold, bowel changes, or a racing heartbeat. Positive antibodies do not always mean your thyroid is functioning abnormally.

    4 biomarkers

    $94.98

    Best Value

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  • Thyroid-Stimulating Hormone (TSH)

    This test measures thyroid-stimulating hormone (TSH), a signal from the pituitary gland that tells your thyroid how much hormone to produce. Thyroid hormones help regulate energy, metabolism, and body temperature. TSH is commonly the first test used to assess thyroid function and can help identify an underactive thyroid (hypothyroidism) or an overactive thyroid (hyperthyroidism). Testing may help investigate fatigue, unexplained weight changes, sensitivity to heat or cold, bowel changes, or a racing heartbeat.

    1 biomarker

    $29.32

    Individual Test

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  • T3, Free

    This test measures free T3 (triiodothyronine), the thyroid hormone available for your body to use. T3 helps regulate energy, metabolism, body temperature, and heart rate. Testing can help evaluate an overactive thyroid (hyperthyroidism), particularly when TSH is low but free T4 is normal. It may help investigate symptoms such as a racing heartbeat, unexplained weight loss, shakiness, or sensitivity to heat. Free T3 is generally less useful for identifying an underactive thyroid and is not routinely needed to monitor most thyroid hormone treatment.

    1 biomarker

    $47.15

    Individual Test

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  • T4, Free

    This test measures free T4 (thyroxine), the form of the main thyroid hormone that is not attached to proteins in your blood and is available for your body to use. Your body converts T4 into T3, a more active hormone that helps regulate energy, metabolism, and body temperature. Free T4 is commonly measured alongside TSH to help identify an underactive thyroid (hypothyroidism) or an overactive thyroid (hyperthyroidism), especially when TSH results are abnormal. It may also help monitor thyroid treatment. Testing can help investigate fatigue, unexplained weight changes, temperature sensitivity, or changes in heart rate.

    1 biomarker

    $30.54

    Individual Test

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  • Thyroid Peroxidase Antibodies

    This test measures thyroid peroxidase (TPO) antibodies, proteins your immune system may produce when it mistakenly targets your thyroid. Your thyroid helps regulate metabolism, energy, and body temperature. TPO antibody testing can help identify an autoimmune cause of thyroid problems, especially Hashimoto’s disease. These antibodies may also be present in Graves’ disease. TPO antibodies can help identify an autoimmune cause of thyroid problems, especially Hashimoto’s disease. They may also be present in Graves’ disease. Your provider may recommend this test if you have abnormal thyroid results or symptoms such as fatigue, unexplained weight changes, constipation, or sensitivity to cold.

    1 biomarker

    $32.65

    Individual Test

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How it works

  1. Order your labs online

    Select your lab and check out

  2. Get your testing instructions

    Receive personalized instructions to complete your test at a lab location or at home

  3. Complete your test

    Complete your sample collection at a lab or at home, depending on your test type

  4. Receive your results

    Access your results in the Fullscript app, with a support team available to help

FAQ

Answers to your questions about lab testing and services.