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Jarrow Formulas, 5-HTP, 5-Hydroxytryptophan, 50 mg, 90 Capsules

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In Stock
  • Expiration Date: Dec 2017
  • Shipping Weight: 0.17 lbs (0.08 kg)
  • Product Code: JRW-15044
  • UPC Code: 790011150442
  • Package Quantity: 90 Capsules
  • Dimensions: 3.9 x 2.1 x 2.1 in, 0.1 lbs (0.05 kg)
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Product Overview


  • Supports Serotonin Synthesis
  • Dietary Supplement
  • Gluten Free

Jarrow Formulas 5-HTP (5-Hydroxytryptophan) is an extract of Griffonia simplicifolia seeds from coastal West Africa. Purity is assured by HPLC. 5-HTP is the direct metabolic precursor of serotonin and is important for the production of melatonin.

Suggested Use

Usage: Take 1 capsule per day on an empty stomach or as directed by your qualified healthcare professional.

Other Ingredients

Cellulose, magnesium stearate (vegetable source) and silicon dioxide. Capsule consists of gelatin.

No wheat, no gluten, no soybeans, no dairy, no egg, no fish/shellfish, no peanuts/tree nuts.


Note: If you have a medical condition, are pregnant, lactating, trying to conceive, under the age of 18, or taking medications (especially SSRIs, MAOs, or sedatives), consult your healthcare professional before using this product.

Keep out of the reach of children.

Supplement Facts
Serving Size: 1 Capsule
Servings Per Container: 90
  Amount Per Serving % DV
5-HTP (5-Hydroxytryptophan) 50 mg *
* Daily Value not established.
iHerb Customer Reviews
5HTP- I wish I'd had this years ago
I take this with a B-Complex (note: with Niacin) vitamin every day. I am not a doctor and cannot give an official medical recommendation. To deal with my depression (since my teens!) I tried psychologists, SSRIs (Prozac- absolutely dulled my creativity and other urges), and, most lately, frequent meditation (it helped slightly). For years I felt like a giant pressing weight was centered over my brain. Now I take roughly 250 mg of 5HTP throughout my morning, with maybe a touch-up of 50mg as needed roughly 6-8 hours later. I can't drink alcohol while on such a high dose of 5HTP- I find even a shot makes me depressed and anxious the next day. But, my mood is great, my social anxiety is gone-- the looming "cloud" is gone. All these improvements seems to be slowly improving my maturity, and reducing my anxiety to "face life head on," as they say. What a GREAT supplement! It is important to take 5HTP during "daylight" hours, as the circadian rhythm of your body and the sunlight exposure will help to convert it to Serotonin (at night, it will process too quickly from Serotonin into Melotonin). My BMI is 39 at the moment, so it is important to find a dosage in milligrams that is right for you. I experience a headache and increased aggression if I take too much. Please note: 5HTP will probably only aid depression in those suffering from some degree of serotonin deficiency. It is up to you to decide whether trying this supplement is right for you. Please be sure to buy from as good a source as iHerb: I find the Jarrow Formulas product is more effective than any others I've tried, and the price is very good.
Feb 16, 2011


Posted by 5363446351595356916 on Aug 02, 2016


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not much help

Posted by Reviewer1213948 on May 21, 2016

I'm afraid this product didn't help me at all.

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Mood lift

Posted by 4612120995713906551 on May 10, 2016

5-htp works really well in lifting my mood. I notice a distinct increase about 30 mins after taking it, I'm happier and more relaxed. Great product.

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This works

Posted by 4942441131057668078 on Mar 30, 2016

when you are in a bad mood, this works. However, did not help my headaches, altho they are not serotonin related, so its unfair to judge, i was still hopeful and tried this.

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Posted by Jovana on Nov 22, 2015

I took this and l-tyrosine from same company Jarrow formulas ! I am taking 2 weeks for now and i decide to write a review becayse i think its time after 2 weeks ! I started with 2 pills in first week and i didnt felt anything. Than i rise the dose on 3 pills and still nothing , than yesterday i took 6 pills ( 3 pills - 30 min before lunch and 3 pills 1 howr before bed ) and all i got was Headache ! Today i again took 3 tablets and i still dont feel anything ! So if you ask me this doesnt work at all !!!

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