Does this tablet contain magnesium glycinate and melatonin?

Good question to clarify before you start. This tablet does contain melatonin,so that part checks out, but the magnesium here is in the form of magnesium hydroxide rather than magnesium glycinate they're different compounds with somewhat different effects on the gut. If you were specifically looking for magnesium glycinate for its gentler digestive profile, this particular tablet won't give you that, so it's worth mentioning to your doctor or pharmacist if that distinction matters for your case.