Struggling to fall asleep or stay asleep through the night? You are not alone. Many individuals turn to melatonin supplements to reset their sleep cycles, especially during times of stress or travel. In this NOW Melatonin 5mg review, we examine two popular options from a trusted brand: the standard immediate-release capsules and the sustained-release tablets. Both offer 5 mg of melatonin, but their release profiles cater to different sleep needs.

We have assessed these products based on quality, formulation, and user feedback to help you make an informed decision. For a broader perspective on natural sleep aids, you may also explore our guide on valerian root benefits for sleep.

1
Best Seller

NOW Supplements Melatonin 5 mg, 180 Veg Caps

NOW
9.9 /10
AI Score
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NOW Melatonin 5 mg offers a potent dose of the natural sleep hormone to help regulate sleep/wake cycles, plus it acts as a free radical scavenger. Ideal for adults seeking occasional sleep support from a trusted, GMP-certified brand.
Pros & Cons

Pros

  • High purity and potency with GMP certification
  • Supports multiple body systems beyond sleep (immune, GI, antioxidant)
  • 180 capsules offer excellent value for a 5 mg daily dose
  • Vegan and free from major allergens
  • Long-standing brand reputation for quality

Cons

  • 5 mg may be too strong for some individuals, especially those new to melatonin
  • May cause morning drowsiness if taken too late or in excess
  • Not recommended for pregnant, nursing women, or those with autoimmune conditions without medical advice
Detailed Review

NOW Supplements Melatonin 5 mg is a high-dose sleep aid designed for adults who need extra support regulating their sleep/wake cycle. Unlike lower-dose options, this 5 mg capsule is suited for those who have built tolerance or require a stronger effect to fall asleep or adjust to jet lag. It comes in a convenient 180-count bottle, providing a two-month supply at one capsule per night.

The standout feature of this melatonin is its dual action as both a sleep regulator and a potent free radical scavenger. Melatonin naturally produced in the pineal gland also plays a role in gastrointestinal health and immune support. NOW's formula leverages these benefits, making it more than just a sleep supplement. In real-world use, users report falling asleep faster and experiencing fewer nighttime awakenings, with some noting improved wakefulness the next day.

Design and build quality are typical of NOW's commitment to purity. The capsules are vegan, non-GMO, and free from gluten and soy. The GMP Quality Assured certification means every batch is tested for stability, potency, and formulation accuracy. The bottle is compact and easy to store, with clear labeling and dosage instructions.

A potential drawback is the 5 mg dose, which may be too strong for melatonin-sensitive individuals, leading to vivid dreams or morning grogginess. It is advisable to start with a lower dose (e.g., 1-3 mg) if new to melatonin. Also, those with certain medical conditions or on medications should consult a healthcare professional before use.

Overall, NOW Melatonin 5 mg is a reliable, high-quality supplement for adults seeking robust sleep support and antioxidant benefits. Its trusted brand, third-party testing, and affordable price make it a solid choice for regular use. For best results, take 30-60 minutes before bedtime and maintain a consistent sleep schedule.

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Editor's Pick

NOW Supplements Melatonin 5 mg Sustained Release

NOW
9.6 /10
AI Score
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This melatonin supplement from NOW provides 5 mg per serving in a sustained release formula that works over 4 hours, designed to support a healthy sleep cycle. It is ideal for adults who prefer a vegan, GMP certified option for occasional sleep support.
Pros & Cons

Pros

  • Sustained release helps maintain melatonin levels for longer, supporting uninterrupted sleep.
  • High customer rating (4.4 out of 5) reflects user satisfaction with efficacy and quality.
  • Vegan and GMP certified, appealing to health-conscious and ethically-minded buyers.
  • 120 tablets offer excellent value for a long-term supply at an affordable price point.

Cons

  • The 5 mg dose may be too high for some individuals who are sensitive to melatonin, potentially causing grogginess.
  • Sustained release tablets may not be suitable for those who prefer immediate onset or require fast action.
  • No flavor or chewable option, which could be a drawback for those who dislike swallowing tablets.
Detailed Review

NOW Supplements Melatonin 5 mg Sustained Release is a dietary supplement designed to support a healthy sleep cycle. This product is for adults who struggle with occasional sleeplessness or need to reset their sleep-wake rhythm. It is particularly suited for those who prefer a vegan, non-GMO, and quality-assured option from a trusted brand.

The standout feature is its sustained release technology, which releases melatonin over a 4-hour period. This helps maintain steady melatonin levels throughout the night, potentially reducing early morning awakenings. The formula is also a potent free radical scavenger, offering antioxidant benefits that support immune and gastrointestinal health as noted in clinical research.

Real-world performance is strong, with a 4.4 out of 5 rating from users. Many report improved sleep quality and easier falling asleep without morning grogginess when taken as directed. The 120-tablet count provides a convenient 4-month supply for daily use, making it cost-effective.

The tablets are cream/tan/grey in color, indicating a natural uncoated design. They are vegan and free from common allergens, backed by NOW's GMP Quality Assured certification. However, the 5 mg dose may be too potent for some, and the sustained release might not suit those needing immediate effect. As with any supplement, start with a lower dose if sensitive.

Overall, NOW Supplements Melatonin 5 mg Sustained Release is a solid choice for natural sleep support. It combines efficacy, quality manufacturing, and great value. For best results, use as part of a consistent bedtime routine. Recommended for anyone seeking a reliable, vegan melatonin supplement without artificial additives.

3
Limited Time

Now Foods High Potency Melatonin 5mg 360 Capsules

Now Foods
9.9 /10
AI Score
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This Now Foods melatonin supplement delivers a potent 5mg dose per capsule in a generous 360-count pack (two 180-count bottles), making it a reliable choice for vegetarians seeking to regulate their sleep cycle naturally.
Pros & Cons

Pros

  • High potency provides quick onset s sleep support
  • Vegetarian capsules align with plant-based lifestyles
  • Substantial quantity offers months of use
  • Reputable brand ensures quality and purity

Cons

  • 5mg dose may be too high for some users, especially beginners
  • Capsules are not gummy, which some may find less pleasant
  • No additional sleep aids (like valerian) combined in this product
Detailed Review

Now Foods High Potency Melatonin is a popular supplement aimed at adults struggling with occasional sleeplessness or jet lag. Each capsule contains 5mg of mela tonin, a dose that is considered high potency and effective for promoting restful sleep. This particular bundle includes two bottles of 180 capsules each, providing a full 360 count that can last for months.

The standout feature is the sheer potency per dose. Many sleep aids offer only 1mg or 3mg, so 5mg is a strong choice for those who need more seveire support. The formula is vegetarian and free from common allergens, making it accessible to a wide range of users. In terms of performance, users report feeling drowsy within 30 to 60 minutes and experiencing deeper sleep through out the night.

The design is straightforward: white and orange label bilingual packaging labels clearly mark the contents. Capsule size is somewhat large but easy to swallow with water. The product is manufactured by Now Foods, a brand known for rigorous quality testing and high purity standards, which adds confidence in the supplement's safety.

One potential drawback is that 5mg might be too strong for individuals who are sensitive to melatonin. Starting with a half capsule or a lower dose product is advised for first-timers. Additionally, the capsules are not flavored or chewable, so they require liquid to swallow.

Overall, this melatoni n supplement from Now Foods delivers on its promise of high potency sleep support at a great value. It is ideal for those who need a robust dose and prefer a large supply. For milder cases, a lower dose might be more appropriate, but for steady, restful sleep, this product is a top choise.

4
Top Rated

NOW Prostate Health Clinical Strength Saw Palmetto

NOW
7.0 /10
AI Score
AI score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the AI tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
This clinical-strength saw palmetto supplement from NOW is designed to support prostate health in men. With 180 softgels per bottle, it offers a convenient daily regimen for those seeking natural prostate support.
Pros & Cons

Pros

  • Clinical strength potency for effective prostate support
  • Large 180-count bottle offers long-term value
  • Trusted brand with decades of quality manufacturing
  • Natural saw palmetto ingredient with minimal side effects
  • Softgels are easy to swallow and digest

Cons

  • May take several weeks of consistent use to notice benefits
  • Not recommended for women or children
  • Some users may experience mild digestive upset initially
Detailed Review

NOW Prostate Health Clinical Strength Saw Palmetto is a dietary supplement designed specifically for men looking to support their prostate health. This product features a potent dose of saw palmetto extract, a well-known herb traditionally used to maintain healthy prostate function and urinary tract health. It is ideal for men over 40 or those experiencing occasional urinary discomfort related to prostate health.

The standout feature of this supplement is its clinical strength formulation, which delivers a higher concentration of active compounds compared to standard saw palmetto products. Each bottle contains 180 softgels, providing a convenient three-month supply when taken as directed (two softgels daily). This makes it a practical choice for long-term use without frequent reordering.

NOW Foods is a reputable brand known for its commitment to quality and purity. These softgels are made with non-GMO ingredients and are free from common allergens like gluten, soy, and dairy. The softgel design ensures easy swallowing and efficient absorption, making the supplement gentle on the stomach for most users.

One potential drawback is that saw palmetto supplements often require consistent use over several weeks before noticeable improvements in prostate comfort occur. Additionally, individual results may vary, and some men might experience mild digestive issues when first starting the regimen. It is also important to note that this product is not intended for women or children.

Overall, NOW Prostate Health Clinical Strength Saw Palmetto is a reliable and high-quality option for men seeking natural prostate support. Its potent formula, generous supply, and trusted brand reputation make it a solid choice for maintaining prostate wellness. If you are looking for a straightforward and effective saw palmetto supplement, this product is worth considering.

5

NOW Supplements Maximum Strength Melatonin 20 mg

NOW
9.5 /10
AI Score
AI score rating is a scoring system developed by our experts. The score is from 0 to 10 based on the data collected by the AI tool. This score doesn't impact from any manufacturer or sales agent websites. Learn more ›
NOW Maximum Strength Melatonin delivers 20 mg per capsule to support restful sleep and regulate sleep-wake cycles. Ideal for those needing a higher dose melatonin supplement from a trusted family-owned brand.
Pros & Cons

Pros

  • High dose effective for chronic sleep issues
  • Trusted brand with decades of experience
  • GMP certified for quality and purity
  • Vegetarian capsules suitable for various diets
  • Provides antioxidant and immune support

Cons

  • 20 mg is a very high dose, may cause next-day drowsiness
  • Not recommended for beginners without consulting a doctor
  • Limited customer reviews available for this specific product
Detailed Review

NOW Maximum Strength Melatonin 20 mg is a high-dose melatonin supplement designed for individuals who require stronger support for sleep regulation. It is ideal for those with chronic sleep issues or shift workers needing to reset their circadian rhythm.

Each capsule delivers 20 mg of pure melatonin, a potent dose that can help induce sleep quickly. Beyond sleep, melatonin offers antioxidant benefits as a free radical scavenger, supporting overall health. The supplement also aids in maintaining a healthy immune system and gastrointestinal lining.

NOW Supplements follows strict GMP quality assurance, ensuring each batch is tested for stability, potency, and purity. The capsules are vegetarian-friendly and the brand has been a trusted name in natural products since 1968.

A potential drawback is the high dosage: 20 mg is significantly above typical doses (1-5 mg), which may cause morning drowsiness or headaches in some users. It is advisable to start with a lower dose if new to melatonin. Also, as with any supplement, consult a healthcare provider before use.

Overall, NOW Maximum Strength Melatonin is a reliable option for those who need a potent sleep aid from a reputable manufacturer. Its additional health benefits and quality assurance make it a solid choice for experienced users.

Buying Guide

Immediate Release vs. Sustained Release

One of the most important factors when choosing a melatonin supplement is the release mechanism. The standard NOW Supplements, Melatonin 5 mg capsules dissolve quickly, delivering melatonin all at once. This is ideal for those who need help falling asleep faster.

In contrast, the NOW Supplements, Melatonin 5 mg sustained release tablets are designed to release melatonin gradually over about four hours. This mimics the body’s natural melatonin production and is better for individuals who wake up during the night. Consider your sleep pattern when deciding between these two forms.

Quality and Purity

NOW is a well-established brand known for stringent quality control. Both products carry the NPA A-rated GMP certification, ensuring that every batch is verified for potency and purity. This certification means the manufacturing process, including laboratory methods, has been thoroughly reviewed.

If you prioritize clean ingredients, you may also be interested in our NOW magnesium caps review, which covers another high-quality supplement from the same manufacturer.

Value and Serving Size

Both supplements provide 5 mg per serving, but the number of servings differs. The immediate-release capsules come in a bottle of 180, while the sustained-release tablets offer 120 tablets. For long-term use, the larger bottle may be more convenient, but if you prefer a slower release, the sustained option provides excellent value over time.

Dietary Preferences

The sustained release tablets are labeled vegan, making them suitable for plant-based diets. The immediate-release capsules are also vegan-friendly as they are made from cellulose. Both products are free from common allergens, which is a plus for sensitive individuals. For more on natural sleep support, see our piece on ashwagandha and magnesium for sleep.

Final Thoughts

Both formulations from NOW deliver reliable 5 mg melatonin with proven quality. For those who need fast sleep onset, choose the NOW Supplements, Melatonin 5 mg immediate-release capsules. If you often wake up during the night, the NOW Supplements, Melatonin 5 mg sustained release tablets offer steady support. Either way, you are getting a product backed by rigorous quality standards and decades of trusted manufacturing.

Frequently Asked Questions

How much melatonin should I take for sleep?

The typical dose ranges from 1 mg to 5 mg taken 30 to 60 minutes before bedtime. It is best to start with a lower dose and gradually increase as needed. Always consult a healthcare provider for personalized advice.

Is 5mg of melatonin too much?

For many adults, 5 mg is a standard and effective dose. However, some individuals may experience grogginess with higher doses. If you are new to melatonin, consider starting with a lower amount and monitoring your response.

What is the difference between immediate release and sustained release melatonin?

Immediate release dissolves quickly and helps you fall asleep faster. Sustained release gradually releases melatonin over several hours, which can help maintain sleep throughout the night. Choose based on your sleep issues.

Are NOW melatonin supplements vegan?

Yes, both the capsules and the sustained release tablets are vegan. They are made without animal-derived ingredients and are suitable for plant-based diets. For another vegan-friendly sleep aid, check our Doctor’s best L tryptophan review for 2026.