Adrenal disorders—including adrenal insufficiency (Addison’s/secondary), Cushing’s syndrome, primary aldosteronism, congenital adrenal hyperplasia (CAH), and pheochromocytoma/paraganglioma—demand an integrated endocrine and biochemical work-up. At Southern Medical Supplies Limited (SMSL), we provide a complete testing menu covering basal and dynamic assessment: serum/salivary/urinary cortisol, ACTH, 1-mg overnight dexamethasone suppression and cosyntropin (Synacthen) stimulation, 17-hydroxyprogesterone with extended steroid profiles for CAH, DHEA-S and androgen panels, aldosterone with direct renin/PRA and ARR, plasma free and urinary fractionated metanephrines/catecholamines, plus electrolytes and acid–base status, with targeted molecular assays (e.g., CYP21A2) where indicated. Our portfolio spans ELISA, chemiluminescent immunoassay, molecular, and clinical chemistry platforms from a broad network of trusted partners—EUROIMMUN, Ansh Labs, Randox, Streck, Bio-Rad, Abbott, Roche, Siemens Healthineers, Qiagen, bioMérieux, Cepheid, Werfen, Globe Scientific, ELGA LabWater, LW Scientific, Sebia, LTA SRL, Acrobiotech, MAKOL Innovacion Medica, Rayto Life and Analytical Sciences, Diazyme, Hardy’s Diagnostics, and Teco Diagnostics—delivering the analytical accuracy, sensitivity, and reproducibility clinicians need to confirm etiology, tailor therapy, and monitor outcomes in adrenal disease.