Best Melatonin Supplements of 2025 - Top 5 Compared

Thorne Melaton-5 delivers a potent 5mg dose of melatonin in each capsule, making it one of the most effective sleep aids available. The supplement is NSF Certified for Sport, meaning it undergoes four rounds of testing to ensure purity and accurate labeling - a crucial factor given the inconsistency found in many melatonin products. The tiny capsule is easy to swallow, though users should take care to swallow it quickly to avoid any unpleasant taste. While the 5mg dose is higher than many standard melatonin supplements, it's particularly effective for those who need stronger sleep support.

The formulation contains minimal additional ingredients and is free from gluten, dairy, and soy. Some users may find the higher dose causes next-day grogginess initially, but this typically subsides with continued use. The price point is higher than basic melatonin supplements but justified by the superior quality control and effectiveness. For those seeking a reliable, high-quality melatonin supplement that delivers consistent results, Thorne Melaton-5 is the clear top choice.

Nature Made Melatonin 3 mg strikes an excellent balance between quality and affordability, offering 240 servings per bottle at a cost that amounts to just pennies per dose. The supplement is USP-verified, ensuring purity and accurate labeling—an important distinction given the inconsistencies found in many melatonin products. Its 3 mg dosage serves as a standard starting point for most adults, helping regulate sleep cycles without being overly strong. While the formulation is intentionally simple and lacks additional sleep-support ingredients, this straightforward approach makes it ideal for those seeking pure melatonin supplementation.

The tablets are small and easy to swallow, though they may leave an unpleasant taste if chewed or allowed to dissolve. Some users may also find that increasing to two tablets provides better results. Overall, for anyone seeking a cost-effective melatonin supplement from a trusted brand that’s suitable for nightly use, Nature Made Melatonin 3 mg remains an excellent choice.

Olly Sleep Gummy provides a flavorful alternative to traditional melatonin tablets, featuring a blackberry taste that makes nightly supplementation more enjoyable. Each serving of two gummies delivers 3 mg of melatonin, paired with 100 mg of L-theanine and a calming blend of chamomile, passionflower, and lemon balm extracts—ingredients commonly associated with relaxation and sleep support. The gummy format is especially appealing for those who prefer not to swallow pills, requiring no water or food. However, the inclusion of added sugars and glucose syrup may be a drawback for some users.

The botanical blend works alongside melatonin to support both sleep onset and overall sleep quality, with some users reporting more vivid dreams as a result of the formulation. While it costs more than basic melatonin tablets, the pleasant delivery format and well-rounded ingredient profile make the higher price worthwhile for many. For those seeking an effective melatonin supplement that’s also enjoyable to take, Olly Sleep Gummy remains an excellent option.

NOW Liquid Melatonin offers a flexible alternative to traditional melatonin supplements through its liquid formulation, allowing for precise and customizable dosing. Liquids are absorbed more quickly than tablets or capsules, which may help support faster sleep onset. Each bottle includes a dropper for easy measurement, making it simple to use the standard 3 mg dose or adjust intake to suit individual needs. The citrus-flavored liquid can be taken on its own or mixed into a beverage, adding convenience and versatility. Users should note that the formula contains xylitol, which is toxic to pets and requires careful storage.

While some may find the flavor slightly medicinal, it is generally well tolerated, particularly when combined with tea or another drink. This format is especially well suited for those who struggle with swallowing pills or prefer greater control over their melatonin dosage. Though priced slightly higher than basic tablet options, the added convenience and dosing precision make NOW Liquid Melatonin a strong choice in its category.

Pure Encapsulations Melatonin 0.5 mg fills an important niche in the sleep supplement market by providing an ultra-low-dose option suited to sensitive individuals or those new to melatonin supplementation. The 0.5 mg dosage is especially effective for circadian rhythm regulation when taken several hours before bedtime, in line with recommendations from sleep specialists. Small, easy-to-swallow capsules allow for precise dose control, enabling users to start low and gradually increase as needed. While the cost per serving is higher than standard 3 mg or 5 mg formulations, the ability to fine-tune dosage helps minimize potential side effects such as morning grogginess.

Backed by a brand known for high manufacturing standards, the formulation offers reassurance of purity and accurate labeling. Although some users may eventually require multiple capsules to achieve optimal results, the flexibility and precision of dosing make this an excellent option for cautious supplementation. For those seeking gentle, carefully controlled melatonin support, Pure Encapsulations Melatonin 0.5 mg stands out as a strong choice.