{"product_id":"testosterone-free-testosterone-oestradiol-home-blood-test-kit","title":"Testosterone, Free Testosterone and Oestradiol  Blood Test","description":"\u003c!-- \nProduct: Testosterone, Free Testosterone and Oestradiol Blood Test (Home Test Kit)\nCollection: Men's Health\nCategory: Medical Tests\nWebsite: Meditest\n--\u003e\n\n\u003cdiv class=\"product-listing-container\"\u003e\n    \u003cstyle\u003e\n        .product-listing-container { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; line-height: 1.6; color: #333; background-color: #fff; max-width: 100%; overflow: hidden; }\n        .product-listing-container * { box-sizing: border-box; }\n        .product-listing-container .product-description { margin-bottom: 20px; font-size: 16px; line-height: 1.8; }\n        .product-listing-container .results-timing { margin: 20px 0; font-size: 16px; }\n        .product-listing-container .results-timing strong { font-size: 18px; color: #2c7a7b; 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padding: 0; margin: 15px 0; }\n        .product-listing-container .kit-contents-list li { padding: 10px 0; border-bottom: 1px solid #e2e8f0; display: flex; justify-content: space-between; align-items: center; }\n        .product-listing-container .kit-contents-list li:last-child { border-bottom: none; }\n        .product-listing-container .item-qty { background-color: #2c7a7b; color: white; padding: 2px 10px; border-radius: 12px; font-size: 13px; font-weight: 600; }\n\n        .product-listing-container .category-section { margin-bottom: 15px; border: 1px solid #e2e8f0; border-radius: 4px; overflow: hidden; }\n        .product-listing-container .category-header { background-color: #4a9ea1; color: white; padding: 14px 16px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }\n        .product-listing-container .category-title { font-size: 17px; font-weight: 600; margin: 0; }\n        .product-listing-container .category-dropdown-icon { transition: transform 0.3s ease; }\n        .product-listing-container .category-content { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .category-section .category-content { max-height: 20000px; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .category-section .category-dropdown-icon { transform: rotate(180deg); }\n        .product-listing-container .category-biomarkers { padding: 15px; background-color: #f8fafc; }\n        \n        .product-listing-container .biomarker-item { margin-bottom: 10px; border: 1px solid #e2e8f0; border-radius: 4px; background-color: white; }\n        .product-listing-container .biomarker-item:last-child { margin-bottom: 0; }\n        .product-listing-container .biomarker-header { padding: 12px 15px; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }\n        .product-listing-container .biomarker-name { font-weight: 600; color: #2c7a7b; }\n        .product-listing-container .dropdown-icon { color: #2c7a7b; transition: transform 0.3s ease; }\n        .product-listing-container .biomarker-content { max-height: 0; overflow: hidden; transition: all 0.3s ease; padding: 0 15px; background-color: #f8fafc; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .biomarker-item .biomarker-content { max-height: 4000px; padding: 15px; border-top: 1px solid #e2e8f0; }\n        .product-listing-container input[type=\"checkbox\"]:checked + .biomarker-item .dropdown-icon { transform: rotate(180deg); }\n    \u003c\/style\u003e\n\n    \u003c!-- Section 1: Product Description --\u003e\n    \u003cdiv class=\"product-description\"\u003e\n        \u003cp\u003eThe Testosterone, Free Testosterone and Oestradiol Blood Test provides a comprehensive assessment of male sex hormone status by measuring total testosterone, calculating free (bioavailable) testosterone, and checking oestradiol levels. Unlike a simple testosterone test, this panel includes SHBG and albumin measurements that allow calculation of free testosterone—the fraction that's actually available to your cells. It also includes oestradiol to assess testosterone-to-oestrogen balance, which is particularly important for men with higher body fat or those on testosterone replacement therapy (TRT).\u003c\/p\u003e\n        \n        \u003cp\u003eThis test is ideal for men experiencing symptoms that might suggest low testosterone (fatigue, low libido, erectile difficulties, reduced muscle mass, mood changes, poor concentration), men who have had borderline total testosterone results and need a more complete picture, men with conditions that affect SHBG levels (obesity, liver disease, diabetes, thyroid conditions) where total testosterone alone may be misleading, men considering or already on testosterone replacement therapy who need comprehensive hormone monitoring, and anyone wanting to understand their full sex hormone profile including the testosterone-oestrogen balance. The combination of total testosterone, free testosterone, and oestradiol gives a much more complete picture than any single marker alone.\u003c\/p\u003e\n        \n        \u003cp\u003e\u003cstrong\u003eWhat's covered in the price:\u003c\/strong\u003e Your kit contains everything needed to collect a finger-prick blood sample at home. Simply follow the instructions, post your sample using the prepaid envelope, and receive your results within 2 working days.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003c!-- Section 2: Results Timing --\u003e\n    \u003cdiv class=\"results-timing\"\u003e\n        \u003cstrong\u003eResults ready within 2 working days\u003c\/strong\u003e\n        \u003cp\u003eYour sample goes to a UKAS accredited laboratory meeting ISO 15189 standards.\u003c\/p\u003e\n        \n        \u003cdiv class=\"dob-notice\"\u003e\n            \u003cp\u003e\u003cstrong\u003eAction Required:\u003c\/strong\u003e Once your order confirmation arrives, please reply to the email with your date of birth. This helps us process your order quickly and avoid any delays.\u003c\/p\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n    \n    \u003c!-- Section 3: Sample Collection --\u003e\n    \u003cdiv class=\"sample-collection-section\"\u003e\n        \u003ch3\u003eHome Test Kit\u003c\/h3\u003e\n        \u003cp\u003eThis test uses a simple finger-prick blood collection method that you can complete at home. The kit includes everything you need to collect a small blood sample from your fingertip. No appointment or clinic visit is required—simply follow the step-by-step instructions included in your kit.\u003c\/p\u003e\n        \u003cp\u003e\u003cstrong\u003eFor the best results:\u003c\/strong\u003e\u003c\/p\u003e\n        \u003cul\u003e\n            \u003cli\u003eRead all instructions carefully before starting\u003c\/li\u003e\n            \u003cli\u003eWarm your hands before collection to improve blood flow\u003c\/li\u003e\n            \u003cli\u003ePost your sample on the same day you collect it\u003c\/li\u003e\n            \u003cli\u003eSend your sample Monday to Wednesday to avoid weekend delays in transit\u003c\/li\u003e\n            \u003cli\u003eDo not post samples on weekends or before public holidays\u003c\/li\u003e\n        \u003c\/ul\u003e\n        \u003cp\u003e\u003cstrong\u003eImportant note on contamination:\u003c\/strong\u003e This test measures both testosterone AND oestradiol—both of which can be affected by transdermal hormone products. If you or anyone in your household uses testosterone gel, oestrogen cream, or any hormone patches\/products, we strongly recommend a venous sample (collected by a phlebotomist from an arm vein) to avoid false results from finger contamination. Please read the contamination warning in Special Instructions very carefully if proceeding with the finger-prick kit.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n    \u003c!-- Section 4: Kit Contents --\u003e\n    \u003cinput type=\"checkbox\" id=\"meditest-kit-contents-toggle-tftoe\"\u003e\n    \u003cdiv class=\"main-section\"\u003e\n        \u003clabel for=\"meditest-kit-contents-toggle-tftoe\" class=\"main-section-header\"\u003e\n            \u003ch2 class=\"main-section-title\"\u003eWhat's in Your Kit?\u003c\/h2\u003e\n            \u003cspan class=\"main-dropdown-icon\"\u003e▼\u003c\/span\u003e\n        \u003c\/label\u003e\n        \u003cdiv class=\"main-section-content\"\u003e\n            \u003cdiv class=\"main-section-inner\"\u003e\n                \u003cul class=\"kit-contents-list\"\u003e\n                    \u003cli\u003e\n\u003cspan\u003eSterile lancets (single-use finger-prick devices)\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×2\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eBlood collection tube (microtainer)\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eAlcohol cleansing wipes\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×2\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eSterile gauze pad\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eAdhesive plaster\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eBiohazard specimen bag\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003ePrepaid return envelope\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eStep-by-step instructions\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cspan\u003eTest request form\u003c\/span\u003e\u003cspan class=\"item-qty\"\u003e×1\u003c\/span\u003e\n\u003c\/li\u003e\n                \u003c\/ul\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n    \n    \u003c!-- Section 5: Special Instructions --\u003e\n    \u003cinput type=\"checkbox\" id=\"meditest-special-instructions-toggle-tftoe\"\u003e\n    \u003cdiv class=\"main-section\"\u003e\n        \u003clabel for=\"meditest-special-instructions-toggle-tftoe\" class=\"main-section-header\"\u003e\n            \u003ch2 class=\"main-section-title\"\u003eSpecial Instructions\u003c\/h2\u003e\n            \u003cspan class=\"main-dropdown-icon\"\u003e▼\u003c\/span\u003e\n        \u003c\/label\u003e\n        \u003cdiv class=\"main-section-content\"\u003e\n            \u003cdiv class=\"main-section-inner\"\u003e\n                \u003cp\u003e\u003cstrong\u003eMorning Sample Essential (6-10am):\u003c\/strong\u003e Testosterone follows a strong circadian rhythm with highest levels in the early morning. Levels can drop 20-30% or more by afternoon. For accurate, interpretable results that can be compared to reference ranges and tracked over time, collect your sample between 6am and 10am.\u003c\/p\u003e\n                \u003cp\u003e\u003cstrong\u003eTransdermal Hormone Contamination – CRITICAL WARNING:\u003c\/strong\u003e This test measures BOTH testosterone AND oestradiol, so contamination from either testosterone or oestrogen products can falsify your results:\u003c\/p\u003e\n                \u003cul\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eNEVER\u003c\/strong\u003e collect your sample from a finger that has applied testosterone gel\/cream, oestrogen cream\/gel, or handled any hormone patches in the past 4 weeks\u003c\/li\u003e\n                    \u003cli\u003eEven thorough washing does not remove all traces—contamination persists on skin\u003c\/li\u003e\n                    \u003cli\u003eIf you apply any hormone products, always wear gloves when doing so\u003c\/li\u003e\n                    \u003cli\u003eBe aware of secondary transfer: if a partner or household member uses hormone products (testosterone OR oestrogen), contamination can occur through shared surfaces, bedding, or skin contact\u003c\/li\u003e\n                    \u003cli\u003eIf there is any possibility of contamination, we strongly recommend a venous blood draw instead\u003c\/li\u003e\n                \u003c\/ul\u003e\n                \u003cp\u003e\u003cstrong\u003eTestosterone Replacement Therapy (TRT):\u003c\/strong\u003e If you're on TRT, this test can monitor your testosterone and oestradiol levels on therapy—both are important. Monitoring oestradiol is particularly relevant on TRT because testosterone is converted to oestradiol by the enzyme aromatase; some men on TRT develop elevated oestradiol causing symptoms like breast tenderness, water retention, or mood changes. Continue therapy as prescribed. Timing relative to your TRT dose:\u003c\/p\u003e\n                \u003cul\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eDaily testosterone gel:\u003c\/strong\u003e Collect sample before applying that day's dose (trough level)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eWeekly testosterone injection:\u003c\/strong\u003e Collect sample on the morning your next injection is due (trough level)\u003c\/li\u003e\n                    \u003cli\u003e\n\u003cstrong\u003eLonger-acting injections (Nebido):\u003c\/strong\u003e Timing depends on what you're trying to assess—discuss with your prescriber\u003c\/li\u003e\n                \u003c\/ul\u003e\n                \u003cp\u003eNote your TRT type, dose, and timing relative to last dose on the request form.\u003c\/p\u003e\n                \u003cp\u003e\u003cstrong\u003eBiotin (Vitamin B7):\u003c\/strong\u003e Stop biotin supplements for at least 2 days before testing. High-dose biotin (common in hair, skin, and nail supplements) interferes with hormone immunoassays and can cause falsely abnormal results.\u003c\/p\u003e\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Section 6: Biomarkers --\u003e\n    \u003cinput type=\"checkbox\" id=\"meditest-biomarkers-toggle-tftoe\"\u003e\n    \u003cdiv class=\"main-section\"\u003e\n        \u003clabel for=\"meditest-biomarkers-toggle-tftoe\" class=\"main-section-header\"\u003e\n            \u003ch2 class=\"main-section-title\"\u003eBiomarkers Tested (5)\u003c\/h2\u003e\n            \u003cspan class=\"main-dropdown-icon\"\u003e▼\u003c\/span\u003e\n        \u003c\/label\u003e\n        \u003cdiv class=\"main-section-content\"\u003e\n            \u003cdiv class=\"main-section-inner\"\u003e\n\n                \u003c!-- Hormones (3) --\u003e\n                \u003cinput type=\"checkbox\" id=\"meditest-cat-hormones-tftoe\"\u003e\n                \u003cdiv class=\"category-section\"\u003e\n                    \u003clabel for=\"meditest-cat-hormones-tftoe\" class=\"category-header\"\u003e\n                        \u003cspan class=\"category-title\"\u003eHormones (3)\u003c\/span\u003e\n                        \u003cspan class=\"category-dropdown-icon\"\u003e▼\u003c\/span\u003e\n                    \u003c\/label\u003e\n                    \u003cdiv class=\"category-content\"\u003e\n                        \u003cdiv class=\"category-biomarkers\"\u003e\n                            \n                            \u003cinput type=\"checkbox\" id=\"meditest-bio-testosterone-tftoe\"\u003e\n                            \u003cdiv class=\"biomarker-item\"\u003e\n                                \u003clabel for=\"meditest-bio-testosterone-tftoe\" class=\"biomarker-header\"\u003e\n                                    \u003cspan class=\"biomarker-name\"\u003eTestosterone (Total)\u003c\/span\u003e\n                                    \u003cspan class=\"dropdown-icon\"\u003e▼\u003c\/span\u003e\n                                \u003c\/label\u003e\n                                \u003cdiv class=\"biomarker-content\"\u003e\n                                    \u003cp\u003eTestosterone is the primary male sex hormone, produced mainly by the Leydig cells in the testes. This test measures total testosterone—the sum of testosterone bound to proteins (SHBG and albumin) plus the small fraction that is free. Total testosterone is the standard first-line measurement for assessing testosterone status, though it doesn't tell the whole story because most of it is bound and inactive.\u003c\/p\u003e\n                                    \u003cp\u003eTestosterone regulates libido and sexual function, erectile function, sperm production and fertility, muscle mass and strength, bone density, fat distribution (preventing central obesity), red blood cell production, mood and mental wellbeing, energy and motivation, and cognitive function. Testosterone levels naturally decline gradually after age 30 (approximately 1-2% per year), though this varies significantly between individuals. Low testosterone (hypogonadism) can occur at any age.\u003c\/p\u003e\n                                    \u003cp\u003eNormal total testosterone in men is typically 8.6-29 nmol\/L in the morning. Levels below 8 nmol\/L are generally considered low; levels 8-12 nmol\/L are borderline; levels above 12 nmol\/L are usually adequate. However, total testosterone can be misleading when SHBG is abnormal—this is why free testosterone calculation is valuable. Results outside the normal range may need a follow-up with your GP.\u003c\/p\u003e\n                                \u003c\/div\u003e\n                            \u003c\/div\u003e\n\n                            \u003cinput type=\"checkbox\" id=\"meditest-bio-freetestosterone-tftoe\"\u003e\n                            \u003cdiv class=\"biomarker-item\"\u003e\n                                \u003clabel for=\"meditest-bio-freetestosterone-tftoe\" class=\"biomarker-header\"\u003e\n                                    \u003cspan class=\"biomarker-name\"\u003eFree Testosterone (Calculated)\u003c\/span\u003e\n                                    \u003cspan class=\"dropdown-icon\"\u003e▼\u003c\/span\u003e\n                                \u003c\/label\u003e\n                                \u003cdiv class=\"biomarker-content\"\u003e\n                                    \u003cp\u003eFree testosterone is the fraction of testosterone that is not bound to proteins and is therefore immediately available to enter cells and exert biological effects. Only about 2-3% of total testosterone is free; the rest is bound to sex hormone-binding globulin (SHBG, ~60-70%, tightly bound and inactive) and albumin (~25-35%, loosely bound and partially available). Free testosterone is calculated using a validated algorithm from the measured total testosterone, SHBG, and albumin values.\u003c\/p\u003e\n                                    \u003cp\u003eFree testosterone is often more clinically meaningful than total testosterone because it represents what's actually available to your tissues. Total testosterone can be misleadingly normal when SHBG is elevated (as occurs with ageing, hyperthyroidism, liver disease, and oestrogen exposure), resulting in low free testosterone and symptoms despite \"normal\" total testosterone. Conversely, total testosterone can appear borderline-low when SHBG is low (as in obesity, insulin resistance, hypothyroidism), but free testosterone may actually be adequate.\u003c\/p\u003e\n                                    \u003cp\u003eNormal free testosterone in men is typically 0.2-0.6 nmol\/L (200-600 pmol\/L). If free testosterone is low while total testosterone is normal or borderline, it suggests that SHBG is high and less testosterone is available to tissues—this can explain symptoms despite apparently adequate total testosterone. Understanding both total and free testosterone, along with SHBG, gives a much more complete picture of your androgen status. Results outside the normal range may need a follow-up with your GP.\u003c\/p\u003e\n                                \u003c\/div\u003e\n                            \u003c\/div\u003e\n\n                            \u003cinput type=\"checkbox\" id=\"meditest-bio-oestradiol-tftoe\"\u003e\n                            \u003cdiv class=\"biomarker-item\"\u003e\n                                \u003clabel for=\"meditest-bio-oestradiol-tftoe\" class=\"biomarker-header\"\u003e\n                                    \u003cspan class=\"biomarker-name\"\u003eOestradiol (E2)\u003c\/span\u003e\n                                    \u003cspan class=\"dropdown-icon\"\u003e▼\u003c\/span\u003e\n                                \u003c\/label\u003e\n                                \u003cdiv class=\"biomarker-content\"\u003e\n                                    \u003cp\u003eOestradiol is the most potent oestrogen and, while often considered a \"female hormone,\" plays important roles in men. In men, oestradiol is produced primarily through conversion (aromatisation) of testosterone by the enzyme aromatase, found mainly in fat tissue. This is why oestradiol levels tend to increase with higher body fat. Men need some oestradiol—it's important for bone health, brain function, libido, and cardiovascular health—but too much can cause problems.\u003c\/p\u003e\n                                    \u003cp\u003eElevated oestradiol in men can cause breast tenderness or enlargement (gynaecomastia), water retention, mood changes (irritability, depression), reduced libido, and erectile dysfunction. The testosterone-to-oestradiol ratio matters: a man might have normal testosterone but if oestradiol is elevated, the effective androgen action is reduced. This is particularly relevant for men on TRT, where some of the administered testosterone gets converted to oestradiol; if oestradiol rises too high, it can negate some of the benefits of testosterone therapy.\u003c\/p\u003e\n                                    \u003cp\u003eNormal oestradiol in men is typically 40-160 pmol\/L. Levels above this, particularly if accompanied by symptoms, may warrant attention. For men on TRT with elevated oestradiol, options include reducing body fat (which reduces aromatase activity), adjusting testosterone dose, or occasionally using aromatase inhibitors (though these should be used cautiously due to effects on bone health and lipids). Results outside the normal range may need a follow-up with your GP.\u003c\/p\u003e\n                                \u003c\/div\u003e\n                            \u003c\/div\u003e\n\n                        \u003c\/div\u003e\n                    \u003c\/div\u003e\n                \u003c\/div\u003e\n\n                \u003c!-- Proteins (2) --\u003e\n                \u003cinput type=\"checkbox\" id=\"meditest-cat-proteins-tftoe\"\u003e\n                \u003cdiv class=\"category-section\"\u003e\n                    \u003clabel for=\"meditest-cat-proteins-tftoe\" class=\"category-header\"\u003e\n                        \u003cspan class=\"category-title\"\u003eProteins (2)\u003c\/span\u003e\n                        \u003cspan class=\"category-dropdown-icon\"\u003e▼\u003c\/span\u003e\n                    \u003c\/label\u003e\n                    \u003cdiv class=\"category-content\"\u003e\n                        \u003cdiv class=\"category-biomarkers\"\u003e\n                            \n                            \u003cinput type=\"checkbox\" id=\"meditest-bio-shbg-tftoe\"\u003e\n                            \u003cdiv class=\"biomarker-item\"\u003e\n                                \u003clabel for=\"meditest-bio-shbg-tftoe\" class=\"biomarker-header\"\u003e\n                                    \u003cspan class=\"biomarker-name\"\u003eSHBG (Sex Hormone-Binding Globulin)\u003c\/span\u003e\n                                    \u003cspan class=\"dropdown-icon\"\u003e▼\u003c\/span\u003e\n                                \u003c\/label\u003e\n                                \u003cdiv class=\"biomarker-content\"\u003e\n                                    \u003cp\u003eSex hormone-binding globulin (SHBG) is a protein produced by the liver that binds and transports sex hormones (testosterone, oestradiol, and dihydrotestosterone) in the blood. Testosterone bound to SHBG is tightly held and unavailable to cells—essentially inactive. SHBG therefore acts as a regulator of how much hormone is biologically available, independent of total hormone levels.\u003c\/p\u003e\n                                    \u003cp\u003eSHBG levels are affected by many factors. SHBG is increased by ageing, hyperthyroidism, liver disease (cirrhosis), oestrogen exposure, and certain medications. SHBG is decreased by obesity, insulin resistance (metabolic syndrome, type 2 diabetes), hypothyroidism, androgen use, and high-dose glucocorticoids. These variations explain why total testosterone can be misleading—two men with identical total testosterone can have very different free testosterone depending on their SHBG levels.\u003c\/p\u003e\n                                    \u003cp\u003eNormal SHBG in men is typically 15-55 nmol\/L. Low SHBG (common in obesity\/metabolic syndrome) means more free testosterone is available despite possibly lower total testosterone—symptoms may not match what total testosterone suggests. High SHBG means less free testosterone is available despite apparently adequate total testosterone—symptoms may be present despite \"normal\" total testosterone. SHBG is essential for calculating free testosterone and understanding the complete picture of androgen status. Results outside the normal range may need a follow-up with your GP.\u003c\/p\u003e\n                                \u003c\/div\u003e\n                            \u003c\/div\u003e\n\n                            \u003cinput type=\"checkbox\" id=\"meditest-bio-albumin-tftoe\"\u003e\n                            \u003cdiv class=\"biomarker-item\"\u003e\n                                \u003clabel for=\"meditest-bio-albumin-tftoe\" class=\"biomarker-header\"\u003e\n                                    \u003cspan class=\"biomarker-name\"\u003eAlbumin\u003c\/span\u003e\n                                    \u003cspan class=\"dropdown-icon\"\u003e▼\u003c\/span\u003e\n                                \u003c\/label\u003e\n                                \u003cdiv class=\"biomarker-content\"\u003e\n                                    \u003cp\u003eAlbumin is the most abundant protein in blood, produced by the liver. It has many functions including maintaining osmotic pressure (keeping fluid in blood vessels), transporting various substances (hormones, fatty acids, drugs, bilirubin), and buffering blood pH. In the context of hormone assessment, albumin's role as a hormone transport protein is most relevant.\u003c\/p\u003e\n                                    \u003cp\u003eApproximately 25-35% of testosterone is bound to albumin. Unlike the tight binding to SHBG, albumin binding is loose and reversible—testosterone can dissociate from albumin and become available to tissues relatively easily. For this reason, albumin-bound testosterone is sometimes considered \"bioavailable\" along with free testosterone. Measuring albumin allows the calculation of free testosterone using validated algorithms that account for binding to both SHBG and albumin.\u003c\/p\u003e\n                                    \u003cp\u003eNormal albumin is typically 35-50 g\/L. Low albumin can occur in liver disease, kidney disease (nephrotic syndrome), malnutrition, and severe illness. Very low albumin affects hormone calculations and may indicate underlying health issues requiring investigation. In most healthy individuals, albumin is stable and within the normal range. Results outside the normal range may need a follow-up with your GP.\u003c\/p\u003e\n                                \u003c\/div\u003e\n                            \u003c\/div\u003e\n\n                        \u003c\/div\u003e\n                    \u003c\/div\u003e\n                \u003c\/div\u003e\n\n            \u003c\/div\u003e\n        \u003c\/div\u003e\n    \u003c\/div\u003e\n\n    \u003c!-- Section 7: Medical Disclaimer --\u003e\n    \u003cdiv class=\"disclaimer-section\"\u003e\n        \u003ch3\u003eMedical Disclaimer\u003c\/h3\u003e\n        \u003cp\u003eHormone levels fluctuate based on time of day, sleep, stress, illness, and other factors. Morning sampling is essential for testosterone accuracy. A single measurement provides a useful snapshot but may need confirmation with repeat testing if results are borderline or unexpected. Guidelines typically recommend two separate low testosterone readings before diagnosing hypogonadism.\u003c\/p\u003e\n        \u003cp\u003eThe combination of total testosterone, free testosterone, SHBG, and oestradiol provides a comprehensive picture of male sex hormone status. However, symptoms don't always correlate perfectly with laboratory values—some men feel well with levels that would be considered low, while others have symptoms despite apparently normal results. Clinical assessment alongside laboratory testing is important.\u003c\/p\u003e\n        \u003cp\u003eIf your results indicate abnormal hormone levels, particularly low testosterone or elevated oestradiol, please discuss with your GP or an endocrinologist. They can assess you comprehensively, investigate underlying causes, and discuss treatment options if appropriate. Testosterone replacement therapy is a significant intervention with both benefits and risks, including potential effects on fertility, cardiovascular health, and prostate, and requires proper medical supervision.\u003c\/p\u003e\n    \u003c\/div\u003e\n    \n\u003c\/div\u003e","brand":"Medi Test Direct","offers":[{"title":"Default Title","offer_id":61319843971402,"sku":null,"price":69.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0944\/5926\/5354\/files\/testosterone_free_oestradiol_home_box_sharp.png?v=1773316223","url":"https:\/\/meditestdirect.co.uk\/products\/testosterone-free-testosterone-oestradiol-home-blood-test-kit","provider":"Medi Test Direct","version":"1.0","type":"link"}