Thyroid Test Kit | Specialist Doctor Report Included

Test ID: B-220 | Sample Type: Dried Blood Spot | Specialist Doctor Report Included

Could Your Thyroid Be Behind Your Fatigue, Weight Gain, or Low Mood?

The thyroid controls your metabolism, energy, mood, weight, and much more — yet thyroid dysfunction is one of the most commonly missed conditions, particularly in women. Symptoms often develop gradually and are dismissed as stress or ageing. If you recognise any of the following, a comprehensive thyroid test could reveal the root cause:

• Persistent fatigue or exhaustion that sleep doesn’t fix
• Unexplained weight gain or difficulty losing weight
• Feeling cold all the time, or conversely, intolerance to heat
• Brain fog, poor concentration, or memory problems
• Low mood, depression, or anxiety
• Hair loss, thinning hair, or brittle nails
• Dry skin or puffy face
• Constipation or digestive sluggishness
• Insomnia or disrupted sleep
• Muscle aches, joint pain, or water retention
• Irregular periods, low libido, or fertility concerns
• Elevated cholesterol or high blood pressure
• Family history of thyroid disease or autoimmune conditions
• Already on thyroid medication and wanting to monitor treatment

Why a Full Thyroid Panel Matters

A standard GP thyroid test typically only measures TSH — which can miss significant thyroid dysfunction. This comprehensive panel measures six thyroid markers, giving a complete picture of thyroid hormone production, conversion, autoimmune activity, and iodine-related health:

• TSH (Thyroid Stimulating Hormone) — The primary screening marker; high TSH suggests hypothyroidism, low TSH suggests hyperthyroidism
• Free T4 (fT4) — The main hormone produced by the thyroid; assesses production capacity
• Free T3 (fT3) — The active thyroid hormone that drives energy, metabolism, and cellular function; some people have normal T4 but poor T4-to-T3 conversion
• Total T4 (TT4) — Measures both bound and free thyroxine; provides a broader view of thyroid output
• TPO Antibodies (TPOab) — Elevated levels indicate autoimmune thyroid disease such as Hashimoto’s thyroiditis
• Thyroglobulin (Tgbn) — Linked to iodine storage and thyroid hormone production; elevated levels may suggest iodine deficiency or thyroid dysfunction

What Conditions Can This Test Help Identify?

• Hypothyroidism — underactive thyroid; the most common thyroid disorder
• Hyperthyroidism — overactive thyroid, including Graves’ disease
• Hashimoto’s thyroiditis — autoimmune attack on the thyroid, often missed without TPO antibody testing
• Subclinical thyroid dysfunction — abnormal TSH with normal T4/T3; affects up to 10% of the population
• T4-to-T3 conversion issues — normal T4 but insufficient active T3; a common cause of persistent symptoms despite “normal” results
• Iodine-related thyroid dysfunction — assessed via thyroglobulin

How It Works

1. Order your kit — delivered to your door
2. Collect your sample at home — a simple finger-prick blood spot; no clinic or GP visit needed
3. Post your sample to our CLIA-certified laboratory using the instructions provided
4. Receive your results by email within 3–5 working days of the lab receiving your sample

What You Get With Your Results

Your personalised report includes:

• All six thyroid markers displayed clearly in graphics and numbers
• A written interpretation by a Hormone Specialist PhD Doctor
• Guidance on what your results mean and what to do next

Who Is This Test For?

This test is suitable for men, women, and children who want to:

• Investigate symptoms that may be linked to thyroid dysfunction
• Go beyond a basic TSH test and get a full thyroid picture
• Screen for Hashimoto’s or other autoimmune thyroid conditions
• Monitor thyroid hormone levels during or after thyroid medication
• Understand why symptoms persist despite “normal” standard thyroid results

Key Information

• Collect your sample from home and post to our lab — no clinic visit required
• Results delivered by email within 3–5 working days
• Laboratory fee included — no hidden costs or additional charges
• Valid for 12 months from the date of purchase
• Analysed by a CLIA-certified laboratory with over 11 million tests performed
• Customers are responsible for posting their sample to the laboratory