For decades, a blood draw in a clinical lab was the only way to quantify your hormones. In 2026, that paradigm is shifting and we are seeing saliva cartridges analyzed by smartphone AI, DNA-based biosensor patches, earring-back wearables, and sweat sensors are converging to make hormone tracking as routine as measuring heart rate. The market, valued at $325.7 million in 2025 and projected to reach $716.2 million by 2035, is opening up to a broader hormonal health market representing an estimated $600 billion opportunity The filed is now bubbling up with cohorts of academic breakthroughs, deep tech hardware bets, and AI platforms that are changing how we might be measing hormones in years to come.