Solgar - Liquid Melatonin 10 mg. - 2 oz. (59mL) Solgar s Liquid Melatonin is a terrific choice for people experiencing occasional sleeplessness those with jet lag or anyone wanting to promote sound quality sleep. This is because Melatonin helps the body maintain a normal circadian (biological) rhythm. Melatonin supplementation may help you awaken feeling refreshed and revitalized. This product is also ideal for those individuals who may need a higher level of sleep support.