Serinisol is a completely natural supplement that helps you feel more relaxed and ready for sleep by quieting the overproduction of cortisol triggered by stress. Cortisol is a stress hormone that is intended to help you deal with emergencies. Cortisol converts fats and proteins into energy, keeps you alert, balances electrolytes, calibrates heart beat and pressure, and counteracts inflammation. Cortisol should ideally go back to normal levels after stressful events, but if your stress is ongoing, cortisol can stay high for long periods. This will gradually affect your body negatively and lead to adrenal imbalance.