Testosterone Free

The Free Testosterone test is a specialised diagnostic tool used to measure the amount of unbound hormone circulating in your blood—the portion that is biologically active and available for your body tissues to use. While a total testosterone test measures the whole reservoir, it can sometimes be misleading because most testosterone is bound to proteins like SHBG (Sex Hormone Binding Globulin). Measuring the free levels is particularly helpful for diagnosing conditions like hypogonadism, PCOS, or adrenal issues when total levels appear normal but symptoms like low libido, fatigue, or muscle loss persist. It provides a more accurate real-time snapshot of your hormonal health, ensuring that treatment decisions are based on the hormone that is actually doing the work.