{"product_id":"male-thyroid-cortisol-test-kit","title":"Male Thyroid \u0026 Cortisol Test Kit | Specialist Doctor Report Included","description":"\u003cp\u003e\u003cstrong\u003eTest ID: SB-640 | Saliva 4-Point Cortisol + Blood Spot Thyroid Panel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eMale Thyroid \u0026amp; Cortisol Test Kit\u003c\/strong\u003e is a comprehensive at-home hormone test designed specifically for men, measuring \u003cstrong\u003e10 key markers\u003c\/strong\u003e across thyroid function and the full daily cortisol rhythm. It combines a \u003cstrong\u003e4-point saliva cortisol profile\u003c\/strong\u003e with a \u003cstrong\u003efull blood spot thyroid panel\u003c\/strong\u003e — providing a clinically meaningful picture of two of the most consequential and interconnected hormone systems in men’s health.\u003c\/p\u003e\n\u003cp\u003eThyroid dysfunction in men is significantly underdiagnosed — partly because it presents differently than in women, and partly because standard TSH-only testing misses the most clinically relevant patterns. Simultaneously, chronic cortisol dysregulation directly suppresses thyroid hormone conversion, suppresses testosterone, and drives the fatigue, weight gain, and cognitive decline that men frequently attribute to ageing or overwork. Testing both together — as this kit does — is the most complete at-home assessment of metabolic and hormonal health available to men.\u003c\/p\u003e\n\u003cp\u003eTest from home with confidence — no clinic visit required. Results within \u003cstrong\u003e3–5 working days\u003c\/strong\u003e.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy This Test Is Particularly Important for Men\u003c\/h2\u003e\n\u003cp\u003eIn men, the thyroid and adrenal (cortisol) systems are deeply intertwined with testosterone and metabolic function. When either system is dysregulated, the downstream effects on energy, body composition, sexual health, and cognitive performance are significant:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCortisol suppresses T3 conversion\u003c\/strong\u003e — under chronic stress, the body diverts T4 towards inactive reverse T3 (rT3) rather than active T3; this produces hypothyroid-like symptoms — fatigue, weight gain, brain fog, low motivation — with a completely normal TSH, detectable only when FT3 is measured\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHypothyroidism suppresses testosterone\u003c\/strong\u003e — thyroid insufficiency directly impairs Leydig cell function and reduces testosterone production; men with undiagnosed low thyroid frequently present with low libido, erectile dysfunction, and andropause symptoms that resolve only when thyroid function is restored\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh cortisol and low thyroid both drive visceral fat accumulation\u003c\/strong\u003e — creating a compound effect on insulin resistance, cardiovascular risk, and aromatase activity, which converts testosterone to oestrogen and accelerates hormonal decline in men\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThyroid autoimmunity occurs in men too\u003c\/strong\u003e — Hashimoto’s thyroiditis is less common in men than women but is frequently missed because TPO and Tg antibodies are rarely tested; men with elevated antibodies can have normal TSH for years while experiencing progressive thyroid decline\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe cortisol–testosterone–thyroid triad\u003c\/strong\u003e — in men under chronic stress, cortisol suppresses both testosterone and T3 simultaneously through shared precursor competition and HPA axis dysregulation; this is one of the most common and most underrecognised causes of hormonal decline in working-age men\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat This Test Measures\u003c\/h2\u003e\n\u003ch3\u003eBlood Spot — Full Thyroid Panel\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTSH (Thyroid Stimulating Hormone):\u003c\/strong\u003e The standard thyroid screen — but in men, TSH alone misses early thyroid dysfunction, antibody-positive Hashimoto’s, and cortisol-driven T3 suppression. A normal TSH does not rule out clinically significant thyroid impairment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree T3 (FT3):\u003c\/strong\u003e The active thyroid hormone that enters cells and drives metabolism, energy production, body temperature, testosterone synthesis support, and cognitive function. Low FT3 with normal TSH is the hallmark of cortisol-driven thyroid suppression — the most common missed pattern in chronically stressed men.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree T4 (FT4):\u003c\/strong\u003e The thyroid’s primary output hormone, converted to active T3 in peripheral tissues. Low FT4 with normal TSH indicates early thyroid insufficiency or impaired conversion — often preceding overt hypothyroidism by years.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal T4 (TT4):\u003c\/strong\u003e Measures total circulating T4 including bound fraction. Provides context for interpreting FT4 and assessing overall thyroid output.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTPO Antibodies (Anti-TPO):\u003c\/strong\u003e The primary diagnostic marker for Hashimoto’s thyroiditis — autoimmune thyroid disease that progressively destroys thyroid tissue. In men, elevated TPO antibodies are frequently present years before TSH becomes abnormal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThyroglobulin Antibodies (Anti-Tg):\u003c\/strong\u003e A second autoimmune marker that can be elevated independently of TPO antibodies. Some men with Hashimoto’s have elevated Tg antibodies with normal TPO — making both markers necessary for complete autoimmune thyroid screening.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSaliva — 4-Point Cortisol Profile\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMorning Cortisol:\u003c\/strong\u003e Evaluates the Cortisol Awakening Response — the morning surge that activates metabolism, drives testosterone availability for the day, and sets cognitive readiness. A blunted response signals adrenal burnout; an exaggerated response indicates high stress reactivity and morning testosterone suppression.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNoon Cortisol:\u003c\/strong\u003e Elevated noon cortisol in men promotes insulin resistance, visceral fat accumulation, and aromatase-driven testosterone-to-oestrogen conversion — a compound driver of metabolic and hormonal decline.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEvening Cortisol:\u003c\/strong\u003e Should be declining to allow testosterone and growth hormone to begin rising during early sleep cycles. Elevated evening cortisol in men is a direct suppressor of overnight hormonal recovery.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNight Cortisol:\u003c\/strong\u003e Elevated night cortisol suppresses the deep sleep phases during which the majority of daily testosterone is produced and thyroid hormone cellular uptake occurs — a primary cause of low morning testosterone, poor recovery, and persistent fatigue in men.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eWho Should Consider This Test?\u003c\/h2\u003e\n\u003cp\u003eThis test is particularly relevant for men who experience:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePersistent fatigue or exhaustion that does not improve with sleep or rest\u003c\/li\u003e\n\u003cli\u003eUnexplained weight gain or difficulty losing body fat despite training and diet\u003c\/li\u003e\n\u003cli\u003eBrain fog, poor concentration, or reduced cognitive sharpness\u003c\/li\u003e\n\u003cli\u003eLow mood, reduced motivation, or mild depression\u003c\/li\u003e\n\u003cli\u003eFeeling cold all the time, or intolerance to cold temperatures\u003c\/li\u003e\n\u003cli\u003eDry skin, hair thinning or loss, or slow wound healing\u003c\/li\u003e\n\u003cli\u003eLow libido or reduced sexual interest\u003c\/li\u003e\n\u003cli\u003eErectile dysfunction or reduced performance\u003c\/li\u003e\n\u003cli\u003ePoor recovery from exercise or overtraining\u003c\/li\u003e\n\u003cli\u003eChronic stress, burnout, or sustained high workload\u003c\/li\u003e\n\u003cli\u003eInsomnia, night waking, or unrefreshing sleep\u003c\/li\u003e\n\u003cli\u003ePalpitations, anxiety, or feeling constantly wired\u003c\/li\u003e\n\u003cli\u003eSymptoms of low testosterone with inconclusive blood results\u003c\/li\u003e\n\u003cli\u003eCurrently on TRT and wanting a complete hormonal and metabolic picture\u003c\/li\u003e\n\u003cli\u003eFamily history of thyroid disease or autoimmune conditions\u003c\/li\u003e\n\u003cli\u003ePreviously diagnosed thyroid condition being monitored\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e10-marker thyroid and cortisol panel in a single at-home kit\u003c\/li\u003e\n\u003cli\u003eBlood spot collection for thyroid markers — finger-prick, no venepuncture\u003c\/li\u003e\n\u003cli\u003eSaliva collection for cortisol — non-invasive, measures bioavailable (active) cortisol at four time points\u003c\/li\u003e\n\u003cli\u003eResults within \u003cstrong\u003e3–5 working days\u003c\/strong\u003e after lab receipt\u003c\/li\u003e\n\u003cli\u003eExpert analysis by a \u003cstrong\u003eHormone Specialist PhD Doctor\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eClear graphical and numerical results with personalised commentary\u003c\/li\u003e\n\u003cli\u003eAll-inclusive price — laboratory fees included, no hidden costs\u003c\/li\u003e\n\u003cli\u003eValid for 12 months from purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eHow It Works\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrder the kit online\u003c\/strong\u003e — delivered directly to your door.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCollect your blood spot sample\u003c\/strong\u003e via a simple finger-prick onto the collection card, and your \u003cstrong\u003esaliva samples\u003c\/strong\u003e at four time points across the day, following the detailed instructions provided. Morning collection should be completed before 9am for optimal cortisol accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePost your samples to the lab\u003c\/strong\u003e using the return instructions included in your kit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceive your results within 3–5 working days\u003c\/strong\u003e, with specialist commentary and clear next-step guidance.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr\u003e\n\u003ch2\u003eWhat Your Report Includes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAll 10 marker results with male-specific reference ranges\u003c\/li\u003e\n\u003cli\u003eVisual charts for your cortisol daily curve and full thyroid panel values\u003c\/li\u003e\n\u003cli\u003eClinical interpretation of the relationship between your thyroid and cortisol results — including how cortisol may be affecting your T3 conversion and testosterone\u003c\/li\u003e\n\u003cli\u003eSpecialist commentary by a Hormone Specialist PhD Doctor\u003c\/li\u003e\n\u003cli\u003ePersonalised next-step recommendations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat does this test measure?\u003c\/h3\u003e\n\u003cp\u003eTSH, Free T3, Free T4, Total T4, TPO Antibodies, Thyroglobulin Antibodies (blood spot) plus Morning, Noon, Evening, and Night Cortisol (saliva) — 10 markers in total.\u003c\/p\u003e\n\u003ch3\u003eWhy test thyroid and cortisol together?\u003c\/h3\u003e\n\u003cp\u003eChronic cortisol elevation directly suppresses T4-to-T3 conversion in men, producing hypothyroid symptoms with a normal TSH. Simultaneously, low thyroid function impairs testosterone production and metabolic rate. Testing both together identifies whether symptoms stem from true thyroid disease, cortisol-driven suppression, autoimmune thyroid disease, or a combination — each requiring a different approach.\u003c\/p\u003e\n\u003ch3\u003eCan I use this test if I am on TRT or levothyroxine?\u003c\/h3\u003e\n\u003cp\u003eYes. This test is particularly valuable for men on TRT who want to understand whether cortisol dysregulation or thyroid suppression is limiting the effectiveness of testosterone therapy. Follow the timing guidance in your kit.\u003c\/p\u003e\n\u003ch3\u003eHow accurate is the test?\u003c\/h3\u003e\n\u003cp\u003eBlood spot samples are analysed using advanced immunoassay technology; saliva cortisol is measured using \u003cstrong\u003eLC-MS\/MS\u003c\/strong\u003e — the gold standard for bioavailable hormone measurement.\u003c\/p\u003e\n\u003ch3\u003eWhen will I get my results?\u003c\/h3\u003e\n\u003cp\u003eWithin \u003cstrong\u003e3–5 working days\u003c\/strong\u003e after your samples reach the laboratory.\u003c\/p\u003e\n\u003ch3\u003eAre there hidden costs?\u003c\/h3\u003e\n\u003cp\u003eNo. Laboratory analysis and specialist review are fully included. You are responsible for postage to the lab.\u003c\/p\u003e\n\u003ch3\u003eHow long is the kit valid?\u003c\/h3\u003e\n\u003cp\u003e12 months from purchase.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy We Partner with ZRT Laboratory\u003c\/h2\u003e\n\u003cp\u003eAt Hormone Lab UK, every home test kit is analysed by \u003cstrong\u003eZRT Laboratory\u003c\/strong\u003e, a globally recognised, \u003cstrong\u003eCLIA-certified\u003c\/strong\u003e diagnostic and research laboratory specialising in hormone testing, thyroid testing, fertility testing, adrenal function, neurotransmitter analysis, cardiometabolic health, heavy metals, and wellness testing. Founded in 1998 by renowned biochemist and breast cancer researcher \u003cstrong\u003eDr. David Zava, PhD\u003c\/strong\u003e, ZRT has become one of the world’s leading laboratories for advanced functional health testing.\u003c\/p\u003e\n\u003cp\u003eWith \u003cstrong\u003emore than 11 million laboratory tests\u003c\/strong\u003e performed and healthcare professionals in \u003cstrong\u003eover 96 countries\u003c\/strong\u003e relying on its expertise, ZRT is recognised for scientific excellence, analytical accuracy, and continuous innovation. The laboratory pioneered \u003cstrong\u003eat-home saliva hormone testing\u003c\/strong\u003e, introduced the \u003cstrong\u003efirst commercially available dried blood spot (DBS) hormone tests\u003c\/strong\u003e, and developed \u003cstrong\u003eDried Urine Testing (DUTS)\u003c\/strong\u003e, helping make advanced laboratory diagnostics more accessible and clinically meaningful.\u003c\/p\u003e\n\u003cp\u003eEvery sample is analysed using state-of-the-art \u003cstrong\u003eLC-MS\/MS\u003c\/strong\u003e and \u003cstrong\u003eICP-MS\u003c\/strong\u003e technology under rigorous quality control standards. ZRT collaborates with the \u003cstrong\u003eCDC\u003c\/strong\u003e, \u003cstrong\u003eNIH\u003c\/strong\u003e, and leading universities, supporting ongoing research and advances in laboratory medicine.\u003c\/p\u003e","brand":"ZRT Laboratory","offers":[{"title":"Default Title","offer_id":57961920823677,"sku":"2024","price":229.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1885\/4859\/files\/SalivaandBloodSpotHormoneTestKit.webp?v=1785073903","url":"https:\/\/hormonelab.co.uk\/es\/products\/male-thyroid-cortisol-test-kit","provider":"Hormone Lab UK","version":"1.0","type":"link"}