Page 2 - Reviews - Thorne, 5-Hydroxytryptophan, 90 Capsules - iHerb

Customer Ratings & Reviews

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4.7
Based on 1,526 ratings
1,264
150
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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Customer reviews (1,511)
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 dietary 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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Translated reviews
iHerb customer
Posted on Aug 29, 2025
Australia
176
0
0
35
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.
iHerbCustomer
Posted on Aug 14, 2025
United Arab Emirates
26
4
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.
Flavius
Posted on Aug 11, 2025
Romania
52
0
0
18
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.
iHerb customer
Posted on May 28, 2025
Australia
90
0
0
14
great
Verified purchase
I paired this up with thyroscin from stopped taking my anti depressants and have found this with thyroid supp has really helped stabilised my mood and energy levels. I don't feel as low and moody. partner has noticed a difference. sleep hasn't changed much, but I never really had a problem before anyway. capsule is a small, easy to swallow size with no taste. yet to know my thyroid levels on the Thorne supp. always trust Thorne
iHerb customer
Posted on May 16, 2025
Brazil
42
0
0
3
High-Quality Thorne Research 5-Hydroxytryptophan
Verified purchase
I’ve been taking Thorne Research 5-Hydroxytryptophan (90 capsules) and noticed improvements in mood and relaxation. The product quality is excellent, with clean, well-sourced ingredients that ensure good absorption and effectiveness. The bottle size offers a convenient supply for daily use. No side effects so far, and it’s become an important part of my wellness routine.
Filippa
Posted on Apr 18, 2025
Sweden
26
0
0
1
Verified purchase
I've been using this one to stabilize my mood during pms, and I believe it works at least a little bit. Even though I've read a lot about methylation and serotonin, I still feels like it's a pretty complicated and confusing topic. Therefore I think one should use these with caution, and possibly be aware about serotonin syndrome.
iHerb customer
Silver
Posted on Mar 22, 2025
Croatia
120
52
0
19
Very good
Verified purchase
A high-quality supplement from a trusted brand—clean ingredients, no unnecessary fillers, and easy to take. I’ve found it helpful for supporting mood and restful sleep when used consistently. Thorne’s transparency and commitment to purity make this a reliable option if you’re looking to incorporate 5-HTP into your routine.
Mark
Gold
Posted on Mar 1, 2025
United States
518
0
0
104
Verified purchase
I’ve been taking Thorne 5-Hydroxytryptophan (5-HTP) for a few weeks now, and I’m really impressed with the positive impact it’s had on my mood and sleep quality. 5-HTP is a precursor to serotonin, which is crucial for regulating mood, sleep, and emotional well-being. Since I started using this supplement, I’ve noticed a significant improvement in my ability to fall asleep faster and stay asleep throughout the night. In addition to better sleep, my mood feels more balanced, and I’ve experienced fewer periods of irritability and stress. The 90-capsule bottle lasts a long time, and I appreciate that Thorne uses high-quality, pure ingredients in their supplements. The capsules are easy to take, and I haven’t experienced any side effects. Overall, this has been a great addition to my wellness routine, and I highly recommend Thorne’s 5-HTP for anyone looking to improve their mood or sleep naturally.
iHerbCustomer
Posted on Jan 5, 2025
Australia
138
0
0
38
My favourite
Verified purchase
5-HTP is an amazing supplement for supporting mood and overall well-being! Since I started taking it, I’ve noticed a significant improvement in my sleep quality and a greater sense of calm throughout the day. It’s been particularly helpful for managing stress and maintaining a balanced mood. I appreciate that it’s a natural option for boosting serotonin levels, and it’s gentle on the system. A fantastic choice for anyone looking to enhance their mental and emotional health!