Page 1 - Reviews - Thorne, 5-Hydroxytryptophan, 90 Capsules - iHerb
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Customer Ratings & Reviews

100% authenticOur products are sourced directly from brands or authorized distributors.Show more
4.7
Based on 1,503 ratings
1,242
149
73
20
19
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What customers say
Customers have reported significant improvements in sleep quality, mood, and overall well-being after using Thorne's 5-HTP supplement. Many users experienced better sleep and woke up feeling refreshed. The product also helped reduce the frequency and severity of headaches, particularly hormonal ones. Several customers noted a noticeable boost in mood, reduced anxiety, and improved emotional stability. Some found it effective for managing PMS-related symptoms and seasonal depression. The capsules are praised for their small size and ease of swallowing. Users appreciate the high quality of Thorne products and trust the brand for its clean ingredients. Overall, the supplement is highly regarded for its effectiveness in enhancing sleep, mood, and general health.
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English
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iHerb customer
Posted on Dec 15, 2023
Georgia
72
37
0
36
Top mood supplement.
Verified purchase
Top quality! The ingredients are perfect. Health is improving. The packaging is excellent. The size is compact. The result is already in a couple of days. Immunity improves. The benefit is maximum. The taste is neutral.
Auto-translated from Russian
iHerbCustomer
Posted on Feb 12, 2022
Georgia
35
0
2
1
Good drug
Verified purchase
Expensive, but the company is trustworthy, plus b6 in the composition
Auto-translated from Russian
iHerbCustomer
Posted on Aug 14, 2025
United Arab Emirates
19
3
0
0
greatest product ever
Verified purchase
The product exhibits superior quality. The flavor profile is absent. The portion size is adequate. The ingredients are of high quality. The product's size is impressive. The product is user-friendly. The benefits are substantial. The packaging is well-designed. The serving size is appropriate. The product is, without a doubt, exceptional.
SassyTofu
Silver
Posted on Nov 19, 2025
Singapore
134
0
0
5
Ingredient
Verified purchase
It helps me sleep through out the nights the first few nights I took it. I took 2 pills but I think moving forward i will take only 1 pill
iHerbCustomer
Posted on Sep 13, 2024
United Kingdom (UK)
271
155
14
95
Effective
Verified purchase
It was prescribed by the dietitian to calm down my nervous system due to a new job. It did work quite well. I need to buy it again.
iHerb customer
Posted on Nov 24, 2025
Belgium
57
0
0
1
Uitstekend!
Verified purchase
This 5-HTP supplement is gentle and effective for supporting mood and relaxation. I’ve been taking it in the evenings and notice improved sleep quality and a calmer, more balanced mood during the day. The capsules are easy to swallow and feel high-quality. A reliable choice if you’re looking for natural support for mood, sleep, and emotional balance.
iHerb customer
Posted on Oct 12, 2025
United Kingdom (UK)
1
0
0
0
Great for Sleep and Mood
Verified purchase
I have been taking Thorne 5 htp for about 2 months now, mainly to help improve my sleep (specifically sleeping through the night). I used to take melatonin but found after a few days I would start feeling groggy even though I'd seemingly slept well. After a week of taking 5 htp I noticed an improvement in sleep, but also felt more upbeat and energised throughout the day. It was a subtle change so I didnt attribute it to 5 htp straight away. But having continued to take it, there has been a significant improvement. I now sleep really well and feel energised and positive throughout the day, until a couple of hours before bedtime when I start feeling tired. I take 3 capsules 20 minutes before bed and one upon waking in the morning. I have been very impressed with this supplement.
iHerb customer
Silver
Posted on Aug 29, 2025
Australia
176
0
0
33
claming
Verified purchase
I’ve ordered from iHerb several times and have always had a great experience. The website is easy to navigate, the product range is huge, and prices are usually much better than local stores. Shipping is reliable and everything arrives well packed. I also like that there are plenty of product reviews to help with choosing the right item. Overall, iHerb makes it convenient to access a wide variety of supplements, health foods, and natural products in one place.
Flavius
Posted on Aug 11, 2025
Romania
52
0
0
17
Good supplement
Verified purchase
Thorne products are well known for their quality and in this case 5-htp is also good given the ingredient composition. I like that it comes with b6 aswell. 5htp is know to increase your serotonin levels, which will improve your mood, reduce cravings, help with sleep. From my experience I felt more calm, but you need a higher dose. Overall, I recommend giving it a try.
iHerb customer
Posted on Jun 27, 2025
United States
55
0
0
6
Great
Verified purchase
I’ve been taking the 5‑Hydroxytryptophan capsules daily and have noticed a gentle, natural uplift in mood and improved sleep quality. The capsules are easy to swallow and don’t cause any stomach upset or grogginess in the morning. I appreciate that the dosage feels well-balanced and supports a sense of calm and emotional well-being. Overall, it’s a thoughtful, effective supplement that has become a helpful part of my daily self-care routine.