Does Zenbev have any side effects?

May 20, 2021
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Zenbev has no side effects as it is a completely natural product that works with your body, not against. Please note, it does take about 30 minutes for the circulating melatonin to become inactive after the sun rises or lights are turned on. During that time there may be drowsiness, which subsides upon exposure to light and does not interfere with daytime functioning.