The secretion of melatonin powder has a circadian rhythm. After night falls, the light stimulation weakens, the enzyme activity of the pineal gland to synthesize melatonin powder increases, and the secretion level of melatonin in the body also increases accordingly, reaching a peak at 2-3 am in the morning. The level of melatonin at night directly affects the quality of sleep. With age, the pineal gland shrinks until it becomes calcified, resulting in the weakening or disappearance of the rhythm of the biological clock. Especially after the age of 35, the body’s own secretion of melatonin decreases significantly, with an average reduction of 10-15% every 10 years, leading to sleep Disorders and a series of dysfunctions, and reduced melatonin levels and reduced sleep are one of the important hallmarks of human brain aging. Therefore, supplementing melatonin in vitro can maintain the level of melatonin in the body in a young state, adjust and restore the circadian rhythm, not only can deepen sleep, improve sleep quality, melatonin powder but more importantly, improve the functional state of the entire body and improve life quality, slow down the aging process,melatonin powder supplier,