How we rank
We read the label. Then we rank on it.
Melatonin bottles are full of front-label claims that do not survive a look at the Supplement Facts panel. Here is exactly how we decide what gets ranked, what gets flagged, and what each product actually delivers per serving.
Verified dose, not front-of-bottle claims
A melatonin is sold on a front-label number that often is not the number that matters. "10 mg" can mean two gummies; "extra strength" can mean 5 mg. For every product we rank we read the Supplement Facts panel for the dose per serving and the serving size, cross-check the live listing, and compare against what owners consistently report. Where a label does not state something, we print "not published" rather than a guess.
Form and how it is delivered
A fast-dissolve tablet, a gummy you chew, a liquid you measure, a time-release tablet marketed for staying asleep: same molecule, different jobs. We classify every product by form, report what the label directs about timing, and treat serving size, sugar, and whether a product needs water as first-class features because they are what you live with at bedtime.
What else is in it
Half the melatonin on the shelf is a blend. We list every added ingredient the panel states (magnesium, L-theanine, ashwagandha, valerian, chamomile, 5-HTP, vitamin B6) with its amount when published, note sugar and sugar alcohols (xylitol is toxic to dogs), and never credit an ingredient with a benefit the label itself does not claim. "Clinically studied" earns nothing without a figure behind it.
Safety lines and who it is for
Melatonin is a dietary supplement in the United States, not a drug, and we say so on every page. We report the ages a label is made for, repeat the American Academy of Pediatrics' advice to talk to a pediatrician before giving melatonin to a child and to keep gummies out of reach, note that a veterinarian decides for a pet, and send anyone pregnant, nursing or on other medication to a doctor or pharmacist. We rank child-resistant packaging and third-party verification marks higher because they are what keeps a household safe.
Cost per night, value, and re-ranking
We divide the live price by the count on the label to get a cost per night, and only when the label states both. A $7 bottle of 120 tablets and a $55 tin of 30 sleep-powder sachets are honest choices for different people, and we say which is which. Then we keep checking: prices are re-verified through the Amazon Creators API, listings are swept for link rot, and every guide carries the date it was last reviewed.
What we don't do: no pay-to-play, no sponsored verdicts, no placements for sale. We earn affiliate commissions when you buy through some of our links, but rankings are set before monetization is considered, and an affiliate relationship never reorders a list. See the full disclosure.
The honest limits: we are a research and verification desk, not a clinic and not a lab. Rankings are built from the label, the live listing and the consistent weight of real owner reports, and when we cite a dose or an amount we tell you whose number it is. Melatonin is a dietary supplement; these statements have not been evaluated by the FDA, and nothing on this site is medical advice. When a product reaches us through the review program and we take our own readings, the review says so plainly.