kids vitamins by maryruth's, plant based kids melatonin chewable tablets, vegan sleep aid with lemon balm, valerian root & chamomile, 2 month supply (60 tablets) maryruth organics melatonin, a hormone naturally produced by the body’s pineal gland in response to darkness, helps the timing of your circadian rhythm as well as sleep. unlike other supplemental forms of melatonin that may be synthetic or derived from animals, ours is plant-based and naturally-occurring as phytomelatonin, from st. john’s wort (hypericum perforatum l.). some studies have shown that supplemental melatonin may improve both children’s time to fall asleep and total amount of sleep. these chewable tablets also include lemon balm extract (melissa officinalis l.), valerian root extract (valeriana officinalis l.) and chamomile flower extract (matricaria chamomilla) for their traditional nervine qualities to help your child wind down from the day and feel more calm and relaxed for bedtime.