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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorised distributors.Show more
4.9
Based on 191 ratings
176
12
2
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1
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What customers say
Customer reviews (96)
Product reviews solely reflect the views and opinions expressed by the contributors and not those of iHerb. iHerb does not verify or endorse any claims made in these reviews. Statements regarding food supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.
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English (UK)
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Reviews from United Kingdom
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English (UK)
Translated reviews
iHerbCustomer
Posted on 5/12/2025
Ukraine
46
34
13
106
Diarrhea from taking
Verified Purchase
Melatonin was recommended by a dermatologist for additional therapy for psoriasis. I took it every night before bed for over a month. It was good for sleep, but when I took this melatonin on a regular basis, I started having diarrhea.
Auto-translated from Ukrainian
f5d0e45d-fe2e-4525-b295-fed8140012fa
iHerb Customer
Gold
Posted on 27/11/2025
Kazakhstan
348
0
15
85
My quality sleep! Great supplement!
Verified Purchase
I started taking Nutricost berry-flavored melatonin about a month ago, and I'm very pleased with the results. I usually have trouble falling asleep due to high levels of stress and anxiety, but after starting to take it, I noticed I was falling asleep easier and sleeping more restfully. The tablets are really tasty—they have a pleasant berry flavor and dissolve easily in the mouth or with water. I like that the 5 mg dose is perfect for me—enough to help me fall asleep quickly, but it doesn't leave me feeling drowsy the next day. I feel like the quality of my sleep has improved; I wake up less often and feel more rested. The large bottle lasts a long time, and the price seems quite reasonable for the number of tablets and the good quality. This melatonin has become a great help in maintaining a normal sleep pattern, especially in stressful situations or when changing time zones.
Auto-translated from Russian
Eng-Abdullah
Posted on 2/03/2026
Saudi Arabia
77
1
4
36
Verified Purchase
1. Effectiveness (10/10): This product is fast-dissolving. The advantage here is that the body absorbs melatonin directly through the mucous membranes in the mouth, making it faster-acting than capsules that require digestion. You'll feel sleepy in just 15-20 minutes. 2. Taste (6/10): The "Mixed Berry" flavor is not overly sweet, which is where this product excels compared to its competitors in the same price range. 3. Quantity and Price (10/10): The pack contains 240 tablets, which is a very generous quantity considering the price (approximately 45-55 Saudi Riyals depending on the offer). This quantity is enough for one person for 8 months, making it an excellent value. 4. Quality (9/10): Nutricost is a well-known brand committed to Good Manufacturing Practices (GMP). The product undergoes third-party testing and is vegan, gluten-free, and GMO-free. Key points to note (user experience): Strength: The 5 mg strength is considered "strong" by some people. If you are new to melatonin, you may experience a groggy feeling upon waking. Usage tip: Do not swallow the tablet immediately; allow it to dissolve completely under your tongue or in your mouth for faster results. Conclusion: This product is the "smart choice" for those who want high quality and a large quantity at a very competitive price. It is ideal for those with initial insomnia due to its fast-dissolving properties. Would you like to know if this strength (5 mg) is suitable for your weight and condition, or would you prefer to start with a lower strength such as 3 mg?
Auto-translated from Arabic
Haddo-Khojah
Gold
Posted on 11/07/2026
Saudi Arabia
322
0
5
296
Distinguished
Verified Purchase
I ordered 10 mg for my mother because she experienced hallucinations and constant drowsiness, so she took this dose, half the amount, and thankfully it suited her.
Auto-translated from Arabic
iHerbCustomer
Gold
Posted on 17/05/2026
Ukraine
732
1
83
396
super
Verified Purchase
a powerful remedy for insomnia. it is better to start with 1 mg. 5 mg for menopausal women to drink at 8:00 p.m.
Auto-translated from Ukrainian
kseniyavarya
Gold
Posted on 15/03/2026
Ukraine
1,655
194
165
12,937
Excellent!
Verified Purchase
Excellent medications, they help me a lot when I can't sleep. I take them half an hour before bed and then I sleep soundly.
Auto-translated from Russian
Farfalla
Gold
Posted on 16/06/2026
Ukraine
369
0
0
109
We didn't work together
Verified Purchase
I bought melatonin from a different brand for my child as a replacement. Unfortunately, it didn't work for us, so I had to go back to the older, more expensive version from a different brand.
Auto-translated from Russian
iHerb Customer
Silver
Posted on 1/12/2025
Kazakhstan
201
0
0
13
Verified Purchase
I'm very pleased with the results of taking these vitamins! After just the first week, I felt a surge of energy, and within a month, I noticed a significant improvement in my overall health. The vitamins' composition is impressive—it contains all the essential micronutrients and vitamins in optimal dosages. The capsules are easy to swallow, and I have no doubt about the quality—the manufacturer is reputable and uses only high-quality ingredients. The vitamins have a pleasant, non-irritating taste. They strengthen the immune system, improve brain function, and maintain beautiful skin and hair. I recommend these vitamins to anyone who wants to maintain their health and feel in shape!
Auto-translated from Russian
iHerb Customer
Posted on 1/12/2025
Kazakhstan
84
0
0
10
Verified Purchase
I'm very pleased with the results of taking these vitamins! After just the first week, I felt a surge of energy, and within a month, I noticed a significant improvement in my overall health. The vitamins' composition is impressive—it contains all the essential micronutrients and vitamins in optimal dosages. The capsules are easy to swallow, and I have no doubt about the quality—the manufacturer is reputable and uses only high-quality ingredients. The vitamins have a pleasant, non-irritating taste. They strengthen the immune system, improve brain function, and maintain beautiful skin and hair. I recommend these vitamins to anyone who wants to maintain their health and feel in shape!
Auto-translated from Russian
iHerb Customer
Silver
Posted on 1/12/2025
Kazakhstan
155
0
0
21
Verified Purchase
I'm very pleased with the results of taking these vitamins! After just the first week, I felt a surge of energy, and within a month, I noticed a significant improvement in my overall health. The vitamins' composition is impressive—it contains all the essential micronutrients and vitamins in optimal dosages. The capsules are easy to swallow, and I have no doubt about the quality—the manufacturer is reputable and uses only high-quality ingredients. The vitamins have a pleasant, non-irritating taste. They strengthen the immune system, improve brain function, and maintain beautiful skin and hair. I recommend these vitamins to anyone who wants to maintain their health and feel in shape!
Auto-translated from Russian