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Thorne Research, 5-Hydroxytryptophan, 90 Vegetarian Capsules

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Thorne Research, 5-Hydroxytryptophan, 90 Vegetarian Capsules

In Stock
  • Expiration Date: Jan 2019
  • Shipping Weight:
    0.12 lbs
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  • Product Code: THR-50302
  • UPC Code: 693749503026
  • Package Quantity: 90 Veggie Caps
  • Dimensions:
    3.2 x 1.8 x 1.8 in, 0.1 lbs
    Switch to Metric units
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Save $2.00 when you purchase these items today for only $33.65
Together: $33.65

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Product Overview


  • Dietary Supplement
  • Hypo-Allergenic

Suggested Use

Take 1-2 capsules three times daily or as recommended by your health-care practitioner.

Other Ingredients

Microcrystalline cellulose, hypromellose (derived from cellulose) capsule, leucine, silicon dioxide.


Tamper Evident: Use only if bottle is sealed.

If pregnant, nursing, or trying to conceive, consult your health-care practitioner before using this product.

Store tightly sealed in a cool, dry place.

Supplement Facts
Serving Size: Two Capsules
Servings Per Container: 45
  Two Capsules Contain: % DV
Vitamin B6 (as Pyridoxal 5' -Phosphate) 6.8 mg 340%
5-Hydroxytryptophan 100 mg *
*Daily Value (DV) not established.
iHerb Customer Reviews


Posted by Reviewer1823960 on Jul 06, 2017 | Verified Purchase

Feel less burdened by life but causes more dreaming at night so might only take in morning and or afternoon. Jury's out but so far so good.

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This product works.

Posted by 5600904123003627607 on May 03, 2017 | Verified Purchase

Recommended by our GP & it works

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Happy Customer

Posted by 5669325985203320341 on Mar 06, 2017 | Verified Purchase

I am very happy with this product, its presentation and price. Your prompt service and delivery is pleasing and appreciated. One small issue I have is with the packaging, or more precisely the packager. The box is adequate, the AIRplus bubble wrap terrific, however, every time I have found that the product is placed in the bottom of the box with the bubble wrap on top. For product/container, safety and integrity it would be more prudent to actually roll or wrap the products in the AIRplus bubble wrap before placing it in the box. On two occasions the bottom of the box where my product is lying has been damaged. Thank you for giving me the opportunity to provide customer feedback.

Thanks for your feedback!


Posted by 4655831421434993052 on Feb 26, 2017 | Verified Purchase

I suffer from anxiety. The 5HTP seems to help me deal with my overactive mind, relaxing me.

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Won't be without this

Posted by 5397062513897982998 on Jun 07, 2016 | Verified Purchase

Found that I am sleeping better since taking this. I began on 50 mg morning and night and have now progressed to 100mg morning and night. I was recommended the product by a nutritionist and I chose Thorne for their reputation for quality and less fillers.

Thanks for your feedback!