I started to use this magnesium spray about two weeks ago. I applied it under my feet right after a shower before bed and within 45 minutes I’m ready to sleep I’m relaxed I’m calm and I wake up with so much energy. It’s work with what time of the day you use it. In the morning it will give you energy. If you have a headache with a couple of sprays behind the neck it goes away with a few minutes. And if it’s time to sleep it will relax you. Im super pleased with the magnesium spray. I can back and bought to more one for my grandmother for her chronic joint pains which is working for her since I’ve been spraying her and one for my mother for her hit pains.