Thorne Research 5-Hydroxytryptophan (90 Capsules)

SKU: TH00503

Increases serotonin levels for better sleep and mood balance

What It Does

This 5-HTP formula increases serotonin levels to support better sleep, balanced mood, and reduced sugar cravings. Unlike basic tryptophan that competes with other amino acids for absorption, 5-HTP converts directly to serotonin where you need it most.

Why It Works

  • DIRECT CONVERSION: 5-HTP bypasses dietary protein competition and converts straight to serotonin in your brain.
  • ACTIVE B6 INCLUDED: Contains pyridoxal 5'-phosphate, the bioactive form of B6 that your body actually uses for serotonin synthesis.
  • FLEXIBLE TIMING: Can be taken with meals without amino acid interference, unlike tryptophan supplements.

What's Inside

Each capsule delivers 50mg of 5-HTP plus 3.4mg of pyridoxal 5'-phosphate in a clean formula. Made without flowing agents that can reduce bioavailability.

Why we carry it: Thorne's inclusion of active B6 cofactor and commitment to bioavailable formulations makes this more effective than standard 5-HTP products.

Each Capsule Contains:
5-Hydroxytryptophan 50 mg.
Vitamin B6 (pyridoxal 5'-phosphate) 3.4mg
Other Ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide.

Take 1-2 capsules three times daily or as recommended by a health-care practitioner.


Size: 90 Capsules
Price:
Save 17%
Sale price$48.75 Regular price$58.50 Unit price ($0.54/Serving)

What It Does

This 5-HTP formula increases serotonin levels to support better sleep, balanced mood, and reduced sugar cravings. Unlike basic tryptophan that competes with other amino acids for absorption, 5-HTP converts directly to serotonin where you need it most.

Why It Works

  • DIRECT CONVERSION: 5-HTP bypasses dietary protein competition and converts straight to serotonin in your brain.
  • ACTIVE B6 INCLUDED: Contains pyridoxal 5'-phosphate, the bioactive form of B6 that your body actually uses for serotonin synthesis.
  • FLEXIBLE TIMING: Can be taken with meals without amino acid interference, unlike tryptophan supplements.

What's Inside

Each capsule delivers 50mg of 5-HTP plus 3.4mg of pyridoxal 5'-phosphate in a clean formula. Made without flowing agents that can reduce bioavailability.

Why we carry it: Thorne's inclusion of active B6 cofactor and commitment to bioavailable formulations makes this more effective than standard 5-HTP products.

Each Capsule Contains:
5-Hydroxytryptophan 50 mg.
Vitamin B6 (pyridoxal 5'-phosphate) 3.4mg
Other Ingredients: Microcrystalline Cellulose, Hypromellose (derived from cellulose) capsule, Leucine, Silicon Dioxide.

Take 1-2 capsules three times daily or as recommended by a health-care practitioner.

Product reviews

Customer Reviews

Based on 5 reviews
60%
(3)
40%
(2)
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H
Helen K
Works so well!

Rather than take a selective serotonin re-uptake inhibitor (SSRI), I started taking 5-HTP, a precursor of serotonin. The Thorne brand is the most effective I have tried and works very well.

S
Susan Thiel

I use it with another pill!

S
Susan T.
I use it with another

I use it with another pill!

L
Lea Leblanc
For a good nights sleep

I have been taking Griffonia for many years now and it has helped me get a good nights sleep. I like that there is no residual effects the next day.

L
Lea L.
For a good nights sleep

I have been taking Griffonia for many years now and it has helped me get a good nights sleep. I like that there is no residual effects the next day.

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