Reverse T3
Reverse T3: Reverse T3.
3–5 business days after laboratory receipt. Allow extra time for review, collection and transport.
Processing estimate only. Allow additional time for order review, collection and sample transport.
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Compare thyroid hormone and antibody tests, with supplements and consultation options.
Thyroid-related panels can contain different combinations of measurements. This hub helps you compare the actual contents, collection arrangements and product details before making a choice.
Look for the named measurements on each test page rather than assuming that basic, complete or extensive panels are equivalent between suppliers. Review preparation instructions and any previous results with a practitioner.
Do not assume that they do. Check the measurement list on the exact test page to see whether antibodies are included.
Results need to be considered in context. Read the product label and seek individual advice before choosing supplements or making changes to prescribed medicines.
See what each test measures, how the sample is collected and the price. Open a test to check the details and order.
Browse all tests in this topic
Reverse T3: Reverse T3.
3–5 business days after laboratory receipt. Allow extra time for review, collection and transport.
Processing estimate only. Allow additional time for order review, collection and sample transport.
Iodine - Random (urinary): Iodine (random).
7 business days after laboratory receipt. Allow extra time for review, collection and transport.
Processing estimate only. Allow additional time for order review, collection and sample transport.
Iodine - Loading Test (urinary): Iodine (random), Iodine (post loading), Iodine excretion %.
7 business days after laboratory receipt. Allow extra time for review, collection and transport.
Processing estimate only. Allow additional time for order review, collection and sample transport.
Thyroid Profile - Basic: TSH, free T4, free T3.
24 hours after laboratory receipt. Allow extra time for review, collection and transport.
Processing estimate only. Allow additional time for order review, collection and sample transport.
Thyroid Antibodies: Thyroid Peroxidase Abs, Anti Thyroglobulin Abs, TSH Receptor Abs.
5 business days after laboratory receipt. Allow extra time for review, collection and transport.
Processing estimate only. Allow additional time for order review, collection and sample transport.
Thyroid Profile - Extensive: TSH, free T4, free T3; reverse T3, ratios, TPO Ab, ATG Ab, TSH Receptor Ab.
3–5 business days after laboratory receipt. Allow extra time for review, collection and transport.
Processing estimate only. Allow additional time for order review, collection and sample transport.
A nutritional and metabolic profile covering amino acids, essential fatty acids, red-cell minerals, whole-blood metals and urinary organic acids.
21 business days after laboratory receipt. Allow extra time for review, collection and transport.
Processing estimate only. Allow additional time for order review, collection and sample transport.
Thyroid · bundle
Three starter supplements, with the option to add a test or practitioner consultation.

Nutritional support for healthy thyroid function and metabolism
Loading dose: 2 tablets twice daily with food. Maintenance dose: 1 tablet twice daily with food. Loading dose is typically used for the first 4-8 weeks then reducing to maintenance.
If you have a diagnosed thyroid condition or are on thyroid medication, seek medical advice before use, iodine supplementation can affect thyroid hormone levels. Withania somnifera (ashwagandha) may interact with thyroid medications, immunosuppressants and sedatives. Dietary supplements should not replace a balanced diet. Not recommended during pregnancy without medical advice. Vegan friendly. Free from dairy, lactose, eggs, gluten, wheat, nuts, yeast and salt.

1-3 capsules daily, or as directed. Often taken in the evening.
Dietary supplements should not replace a balanced diet. Excessive magnesium may cause diarrhoea.
Explore individual supplements for your thyroid care. Open a product to see its ingredients and access requirements, or speak with a practitioner about what suits you.
Metagenics
A practitioner-formulated tablet providing iodine, selenium, zinc, vitamin E and ashwagandha, the key nutrients required for thyroid hormone...
Practitioner
Practitioner grade
Provides zinc as Zinc Bisglycinate, a well-absorbed, gentle zinc form supporting immune function, testosterone production, skin health, wound...
Practitioner
Practitioner grade
Combines vitamin D3 with vitamin K2 for the synergistic management of calcium, supporting bone mineralisation while directing calcium...
Practitioner
Practitioner grade
Provides 100mg elemental magnesium as buffered bisglycinate per capsule, a gentle, well-absorbed form with minimal laxative effect. Supports...
Zinzino
Balance Oil+ combines wild-caught omega-3 fish oil with high-polyphenol extra virgin olive oil, with a 4-month cycle that...
Explore starter bundles for related health concerns.
Compare the tests and products in this hub. If you would like individual guidance before choosing, speak with a practitioner.