Common formats are gummies, softgels or capsules, and tablets.
Melatonin amounts range from about 3 mg up to 10 mg, with common labeled doses of 3 mg, 5 mg, and 10 mg.
L-theanine is most commonly listed at 100 mg or 200 mg in the product details provided.
Directions most often recommend taking one or two softgels or gummies about 30 minutes before bed; some tablets advise taking them about one hour before bedtime.
Package counts vary from small trial sizes to month-plus supplies. Common sizes include 60 or 70 units (roughly a 30–35 day supply); others come in 14, 30, 35, or 44-count packages.