Research

The Science

Clinical breakdowns behind the Day/Night system.

Z22 nighttime drink — cloudy golden glass with the sachet

Why Z22 uses 1 mg of melatonin, not 10

More melatonin doesn't mean better sleep. It means a groggier morning. Here's the dose that actually works.

Why Z22 uses 1 mg of melatonin, not 10

More melatonin doesn't mean better sleep. It means a groggier morning. Here's the dose that actually works.