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Source Naturals, 5-HTP, 100 mg, 120 Capsules

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Source Naturals, 5-HTP, 100 mg, 120 Capsules

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Source Naturals, 5-HTP, 100 mg, 120 Capsules

In Stock
100 mg
50 mg
100 mg
200 mg
120 Capsules
120 Capsules
30 Capsules
  • Expiration Date: 02/2021
  • Shipping Weight:
    0.18 lbs
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  • Product Code: SNS-01696
  • UPC Code: 021078016960
  • Package Quantity: 120 Capsules
  • Dimensions:
    2.2 x 2.2 x 3.8 in, 0.15 lbs
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Save $10.00 when you purchase these items today for only $74.82
Product Overview


  • Dietary Supplement
  • L-5-Hydroxytryptophan
  • Supports Normal Sleep Cycles

5-HTP (L-5-Hydroxytryptophan) is an intermediate in the natural conversion of the essential amino acid, tryptophan, to serotonin. Clinical studies have shown that 5-HTP increases the amount and availability of serotonin produced by the body. Increased brain serotonin levels may produce positive effects on emotional well-being, appetite regulation, melatonin production and maintaining a healthy sleep cycle. Source Naturals 5-HTP is naturally derived from the seeds of the African plant Griffonia simplicifolia.

Suggested Use

1 capsule once or twice daily with a glass of water. Start with 1 capsule per day, increasing dosage up to 2 capsules daily as needed. Do not exceed the recommended dose.

Other Ingredients

Microcrystalline cellulose, gelatin (capsule), colloidal silicon dioxide, and magnesium stearate.

Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.


In some people, nausea, headaches, nasal congestion, or constipation may occur. If these symptoms occur, lower the dose, or spread the dose throughout the day. Discontinue use if any of these symptoms persist for more than three days. If you are pregnant, may become pregnant, or breastfeeding, taking prescription medication such as antidepressant SSRI's, MAO inhibitors or sedatives, or if you have heart disease, consult your physician before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Supplement Facts
Serving Size: 1 Capsule
  Amount Per Serving %DV
5-HTP (from Griffonia simplicifolia) 100 mg
†Daily Value not established.
iHerb Customer Reviews

Good product: seems to be working

Posted by iHerb Customer on Aug 31, 2017 | Verified Purchase

I take this instead of taking prescribed medication for unipolar depression and for anxiety. It seems to be working.

Thanks for your feedback!

Good anti-depressant

Posted by iHerb Customer on Jun 25, 2017 | Verified Purchase

I am always looking for new anti-depressants, I need them due to my MS and don't want to get addicted to one special. This is why I tried the product of Source naturals 5-HTP. I take 2 capsules daily 2 times and feel my MS (including walking ability) and mood better. 100 mg capsules are a bit small dose for me thus I take always 2 at once.

Thanks for your feedback!

Works well.

Posted by iHerb Customer on Jun 16, 2017 | Verified Purchase

It was anti-depressants or this. After my doctor told me about 5-HTP, I kicked the big pharma stuff and found this to be perfectly adequate for my needs. My doctor was selling his own brand of this stuff for mega-bucks, but this low cost alternative works just as well.

Thanks for your feedback!


Posted by iHerb Customer on Dec 12, 2015 | Verified Purchase

until now without any positiv effects!

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Headaches no more

Posted by iHerb Customer on Oct 18, 2014 | Verified Purchase

Used to suffer from debilitating headaches. Since using this, have really noticed a difference in frequency and severity

Thanks for your feedback!