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VDK NaturaSyn is one of the professional suppliers in China. VDK focuses on sustainable, green and affordable bio-manufacturing from high quality natural materials, and its main products are 5-hydroxytryptophan, melatonin and resveratrol.
  • What is the effect and function ofmelatonin?The efficacy and function of melatonin are more, more common are:Usually can promote the role of sleep, if often appear insomnia and dream symptoms, generally can be appropriate to take melatonin for conditioning.It can also play an anti-aging role.

    2023-03-14

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