5-HTP (L-5-hydroxytryptophan)

  • 50 mg
  • Item # 23061

5-HTP (L-5-hydroxytryptophan)

  • 50 mg
  • Item # 23061

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 seed of the African plant Griffonia simplicifolia.

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Serving Size 2 capsules

Servings Per Container 60

Amount Per Serving

5-HTP (from Griffonia simplicifolia)

100 mg

Other ingredients: microcrystalline cellulose, gelatin (capsule), colloidal silicon dioxide, and magnesium stearate.

Hypoallergenic: contains no yeast, dairy, egg, gluten, corn, salt, preservatives, or artificial color, flavor or fragrance.

Dosage and Use

One to two capsules once or twice daily with a glass of water.

Start with one capsule per day, increasing dosage up to four capsules daily as needed.

Do not exceed recommended dose.


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 or breastfeeding, taking prescription medications such as antidepressant SSRI's, MAO inhibitors or sedatives, or if you have heart disease, consult your physician before using this product.

Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.

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