Doctor's Best 5-HTP

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Doctor's Best 5-HTP (60 caps)

Doctor’s Best 5-HTP (5-hydroxy L-tryptophan) contains a naturally occurring metabolite of the amino acid tryptophan. 5-HTP is extracted from the seeds of the Griffonia simplicifolia plant. 5-HTP is converted in the brain to serotonin, a neurotransmitter substance found at the junctions (synapses) between neurons. It produces a calming and relaxing effect providing support to help maintain mental, emotional well-being, and to promote healthy sleep. Doctor’s Best 5-HTP is tested to ensure that it does not contain "Peak X.”

What does 5HTP stand for?
"5HTP" is the shorthand everyone uses to mean "5 Hydroxy L-Tryptophan." 5HTP is the common, or "street name." The "L" designates the chemical "rotation" of the amino acid.

What is Peak X?
Some years ago an impurity was found in the raw material from which 5-HTP is derived. It was named "Peak X" because, on a certain kind of test, the impurity shows up, but at first no one knew what it was, so it was named "Peak X." The producers of 5-HTP have found a way to eliminate the impurity, and thus there is no longer a "Peak X" to be seen on the test.

Key Benefits

  • Helps promote healthy sleep
  • Helps promote calm and relaxation
  • Helps support mental and emotional well-being


Other Ingredients: Modified cellulose (vegetable capsule), microcrystalline cellulose, silicon dioxide.

Allergy Information: Non-GMO. Soy Free. Gluten Free. Vegan.

Suggested Use

Take 1 capsule daily, with or without food, or as recommended by a naturally-informed physician.

Precautions: Not to be used when taking MAO inhibitors, selective serotonin reuptake inhibitors (SSRIs), or other anti-depressant medications. It should also not be used by individuals taking any of the category of medications known as “triptans.”

These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure or prevent any disease or health condition.

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