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Natural Factors, Stress-Relax, 5-HTP, 100 mg, 60 Enteric Coated Caplets

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In Stock
  • Expiration Date: Sep 2018
  • Shipping Weight: 0.24 lbs
  • Product Code: NFS-02829
  • UPC Code: 068958028293
  • Package Quantity: 60 Enteric Coated Caplets
  • Dimensions: 2.2 x 2.2 x 3.9 in, 0.2 lbs
Product Overview


  • Dietary Supplement
  • 5-Hydroxytryptophan
  • Emotional Well-Being
  • Purity & Potency Guaranteed

Supplementing with 5-HTP provides natural support for emotional well-being, and caplets are enteric coated to minimize gastric discomfort and optimize absorption. Natural Factors amino acids are the highest quality pharmaceutical grade products available.

Recommended by Dr. Michael Murray, one of the world's leading experts on natural medicine.

Manufactured by Natural Factors to ensure safety and potency in accordance with Good Manufacturing Practices (GMP) of the FDA and Health Canada.

Suggested Use

1 caplet 2-3 times daily with meal or as directed by a health professional. To minimize the risk of gastrointestinal side effects, slowly increase dose over a period of 2 weeks.

Other Ingredients

Dicalcium phosphate, purified water, microcrystalline cellulose, aqueous coating solution (purified water, ethylcellulose, medium chain triglycerides [coconut], oleic acid, carbohydrate gum [cellulose], glycerin, sodium alginate, stearic acid, magnesium stearate (vegetable grade).

Contains no artificial colors, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, animal products, salt, or GMOs.

Suitable for vegetarians/vegans.


Keep out of the reach of children.

Sealed for your protection. Do not use if seal is broken. For freshness, store in a cool, dry place.

Supplement Facts
Serving Size: 1 Caplet
  Amount Per Serving %Daily Value
5-HTP (Griffonia simplicifolia) Seed
(Pharmaceutical Grade)
100 mg **
Calcium (dicalcium phosphate) 130 mg 15%
**Daily Value not established.
iHerb Customer Reviews

Works great, But...

Posted by 5103803358726222261 on Oct 21, 2016

I have been using it for the past 3 weeks and i have to say that within several days i have noticed a positive change in my mood and happiness. I was really glad to find this one helpful, but unfortunately i think i'll stop taking it since it makes be bloating. My belly bloats loke a balloon. At first i didn't understand why is it happening , but only later i realised it was because of this supplement.

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This is an excellent product for mood stabilization, sleep, suppressing appetite. This is the precursor to serotonin...

Posted by 5182115778057443203 on Mar 06, 2015

After 7 years taking antidepressants, which made me feel like a zombie, constantly tired most of the time, to many side effects from the meds, i came cross a video on youtube, john gray 5htp watch?v=wltfQ4qOA8Q, this is an excellent product for mood stabilization, sleep, suppressing appetite. This is the precursor to serotonin...

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Posted by Reviewer2776030 on Feb 25, 2015

I've tried a few brands and this one is the best. I usually take 50 mg but even cut in half, therefore making its enteric coating redundant, this tablet doesn't hurt my stomach. It really is an excellent way to keep your serotonin levels healthy. But don't take too many as cortisol rises with serotonin, so if you push the boundaries you'll end up sleepy and stressed (ie heart pounding, body under stress) at the same time! That's what happens to me if I take more than I need.

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The best

Posted by Reviewer1297018 on Oct 26, 2013

I was using the "now" brand of 5-htp with great success but always hated the nausea ide get with it afterwards, after switching to this brand that problem is fixed.

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Well worth it

Posted by Reviewer1990542 on Oct 04, 2012

My husband and I having been taking 100mg 5-HTP for a few months now and not only has it helped us come off antidepressants without tumbling into despair it has been a wonderful alternative to being on them at all. The enteric coated tabs prevent any tummy troubles and we've both found taking 100mg at bedtime gives us a good night sleep with no 'hangover' in the morning. When we took them during the day we did feel very sleepy - if anxiety or hyper-arousal was an issue this might be useful but we find it hard to get going at the best of times! When "Life" gets a bit tough - we up the dose with the 50mg tabs which seems to flatten out the bumps quite well - some bumps are unflattenable but at least we've got the goods to face it head on and not be crushed by the thought of tackling the big stuff. We both found on anti-depressants that we were in a 'chemical straight-jacket' and far too many 'whatevers' were being mumbled and way too many things went through to the keeper that should of been addressed - we're now in the process of 'mopping up' from a lot of that non-decision making.... I will NEVER go back on anti-depressants again now that I have found a reliable and real alternative. If you're at the point of knowing you need help but aren't really wanting to start on the antidepressant merry-go-round DEFINTELY give 5-HTP a fair go, I wish I'd known about it before I filled the Cymbalta script!!!

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