Natrol Melatonin Review (2026): Which Strength to Buy

Natrol's entire reputation rests on this tablet, and the tablet earns it. The Natrol Melatonin 5 mg Fast Dissolve is a strawberry tablet the label directs you to let dissolve in the mouth about 20 minutes before bedtime. No water, no swallowing, no getting back out of bed. That convenience is the whole reason fast-dissolve became the mainstream format, and it is why this exact bottle leads our overall best melatonin ranking as well as this page.

The label states 5 mg per tablet, the middle of the range sold on Amazon. That is higher than the 0.5 to 3 mg many clinicians cite as a sensible starting range, which is why the next card exists. What this tablet is not: it is not time-release (that is a separate Natrol product below), it is not sugar-free (the peppermint tablet below is), and the strawberry flavor is a sweetened tablet that a minority of owners find too sweet. The listing title does not state the sweetener, so we do not either; the Supplement Facts panel does.

If you have never taken melatonin, this is the Natrol to start with. The Natrol Melatonin 3 mg Fast Dissolve is the same strawberry tablet as our pick with a labeled 3 mg instead of 5. Sleep clinicians commonly cite 0.5 to 3 mg as a reasonable starting range, on the general principle that more melatonin is not better and higher amounts are associated with next-day grogginess. That is guidance, not a prescription, but it is why a 3 mg tablet is the most-bought amount in the category and why this bottle anchors our 3 mg ranking.

Natrol goes one step lower with the 1 mg Fast Dissolve, 90 count at $6.97, which is the lowest adult amount in the line and the natural choice for anyone who has found even 3 mg leaves them groggy. Seniors, for whom lower amounts are often favored, tend to land on the 1 mg or 3 mg tablet; our low-dose guide compares them against the 300 and 500 mcg capsules from Life Extension.

Ten milligrams is a lot of melatonin, and this card is not going to pretend otherwise. The Natrol Melatonin 10 mg Fast Dissolve is here because a large share of buyers search for 10 mg specifically, and if that is your amount, a Natrol fast-dissolve with a clearly labeled 10 mg is a credible way to buy it. $13.18 divided by 100 is about 13 cents a night.

Two things worth knowing inside the line. First, Natrol's Sugar-Free Peppermint 10 mg (below) is cheaper per night than this strawberry version and is the only sugar-free tablet the brand sells. Second, the 10 mg Time Release, 100 tablets at $16.59, is a swallowed slow-release version; the case for and against higher amounts is laid out in best high-dose melatonin.

The distinction that matters here is release, not amount. The Natrol Melatonin 3 mg Time Release is a conventional swallowed tablet formulated to release its 3 mg over several hours rather than at once. Time-release products are marketed for people whose problem is waking in the night rather than getting to sleep; we say "marketed for" deliberately, because that is the label's positioning and not a proven outcome.

Natrol sells the slow-release idea three more ways: a 10 mg Time Release tablet ($16.59 for 100), Time Release 3 mg Gummies (65 count, $14.49) for gummy loyalists, and a Melatonin + 5-HTP Time Release bi-layer tablet (60 count, $12.99), whose melatonin amount is not published in the title. The whole slow-release field is ranked in our best time-release melatonin guide.

Gummies win on compliance and lose on cost, and Natrol narrows the cost gap more than most. The Natrol Melatonin 10 mg Gummies come 90 to a bottle at $10.97, about 12 cents per gummy, against roughly 23 cents for an OLLY Sleep gummy. That is a real saving if a gummy is the format you will actually take every night.

The better gummy inside the line for most people is the Natrol Melatonin 5 mg Gummies, also 90 count and also $10.97 at our check, at half the amount. Natrol also sells Sleep+ Calm gummies with L-theanine (60 count, $9.98; melatonin amount not published in the title) and a Sleep + Restore magnesium glycinate gummy with 5 mg melatonin ($17.99). Gummies are the format most implicated in the rise in pediatric melatonin ingestions reported through the early 2020s, so store them out of reach of children. The whole field is in our best melatonin gummies guide.

If you want Natrol without the sugar, this is the only tablet that qualifies. The Natrol Melatonin 10 mg Sugar-Free Peppermint is a fast-dissolve like the strawberry tablets, but the title states sugar-free and the flavor is peppermint, which a lot of owners prefer at bedtime anyway. At $6.30 for 60 it is about 10.5 cents a night, less than the $13.18 strawberry 10 mg at 100 count.

The limitation is the amount. Natrol makes this tablet only at 10 mg, which is the top of the mainstream range and the amount most associated with next-day grogginess in owner reports. There is no sugar-free 3 mg or 5 mg fast-dissolve in the line at our check, so a sugar-conscious buyer who wants a lower amount has to look at the brand's berry Liquid Melatonin 2.5 mg (8 fl oz, $12.87; sweetener not published) or at another brand.

Every Natrol card above is a fast-dissolve; this is what a swallowed tablet costs instead. Nature Made Melatonin 3 mg is a conventional tablet at a labeled 3 mg in a bottle that lasts eight months at one a night. $10.73 divided by 240 is about 4.5 cents, versus about 8 cents for Natrol's 3 mg Fast Dissolve.

Nature Made also makes a 10 mg Fast Dissolve (45 tablets, $15.49) that competes directly with Natrol's format, at a much higher per-night cost. The head-to-head is in Natrol vs Nature Made, and the whole line is covered in the Nature Made melatonin review.

If the fast-dissolve format is what you want and the price is what you care about, this is the bottle. Nature's Bounty Melatonin 3 mg Quick Dissolve comes 240 to a bottle at $7.74, which works out to about 3.2 cents a night. Natrol's 3 mg Fast Dissolve is about 8 cents. Same labeled amount, same dissolve-on-the-tongue format, a household brand on both bottles.

Nature's Bounty's line also includes the 5 mg Softgels (90 count, $6.59) and a 1 mg tablet, covered in the Nature's Bounty melatonin review. The direct matchup is Natrol vs Nature's Bounty, and the full cost-per-night ranking is best cheap melatonin.