5-Hydroxytryptophan®

Other Combinations

Brand: Thorne

CapsuleOther CombinationsOff Market

Product label for 5-Hydroxytryptophan — Click to view full label

Net Contents

90 Capsule(s)

Serving Size

1–2 Capsule(s)

Servings Per Container

Supplement Form

Capsule

Bar Code (UPC/SKU)

6 93749 50302 6

Product Version

SA503 LSA50308

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1% Daily Value Coverage

1 ingredients report a %DV; 1 meet or exceed 100% DV.

1Dietary Attributes

Label states: Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Free From

Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1–2 Capsule(s) · 3 per day

Ingredient	Amount Per Serving	% Daily Value
Vitamin B6(Pyridoxal 5-Phosphate)	6.8 mg	400%
5-HTP	100 mg	—

Not Present

Other Ingredients

Microcrystalline CelluloseHypromelloseLeucineSilicon Dioxide

Target Groups

Adult (18 - 50 Years)Women (not pregnant or lactating)Gluten Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested use: Take 1-2 capsules three times daily or as recommended by your healthcare practitioner.

Warnings & Precautions

Precautions re: All Other

Tamper evident: Use only if bottle is sealed.

Precautions re: Pregnant or Nursing or Prescription Medications

Warning: If pregnant or nursing, do not use this product.

Storage

Store tightly sealed in a cool, dry place.

Formulation

Formulation re: Other

Mood Sleep

Formulation re: Does NOT Contain

Gluten free

FDA Statements

FDA Statement of Identity

Dietary Supplement

FDA Disclaimer Statement

This statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Manufacturer & Distributor

Manufacturer

Thorne Research, Inc.

1-800-228-1966

Market Reference

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Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

Planet Supplements Charlotte
4.9 (261)
Vitamin & supplements store
8538 University City Blvd, Charlotte, NC 28213
Directions (704) 548-0108
Nutrishop Huntersville
4.9 (71)
Sports nutrition store
9818 Gilead Rd Unit B-102, Huntersville, NC 28078
Directions (704) 727-3111
The Vitamin Shoppe
4.4 (103)
Vitamin & supplements store
8046 Concord Mills Boulevard, Concord, NC 28027
Directions (704) 971-1646
GNC
3.1 (65)
Vitamin & supplements store
2728 W Mallard Creek Church Rd B, Charlotte, NC 28262
Directions (704) 510-2300
Planet Supplements Concord
5.0 (81)
Vitamin & supplements store
349 Copperfield Blvd NE B, Concord, NC 28025
Directions (704) 787-8555
NutriShop The Arboretum Charlotte NC
4.9 (257)
Vitamin & supplements store
3339 Pineville-Matthews Rd, Charlotte, NC 28226
Directions (980) 207-2929
GNC
3.3 (60)
Vitamin & supplements store
5700 University Pointe Blvd #107, Charlotte, NC 28262
Directions (704) 594-6008
The Vitamin Shoppe
4.5 (198)
Vitamin & supplements store
243 S Kings Dr, Charlotte, NC 28204
Directions (704) 333-2826

Research & Studies

The dual functions of Ziziphi spinosae semen as medicine and food: origins, cross-domain applications, antidepressant metabolites, and pharmacological …
X Shao, M Huangfu, N Wang, Q Zhang… - Frontiers in …, 2026 - frontiersin.org
… ZSS, also known as sour jujube kernel, jujube kernel, thorn kernel, and jujube seed, is extensively scattered throughout northern China, including Hebei, Shanxi, Shandong, Henan, …
2026
The serotonergic system dysfunction in diabetes mellitus
Y Cai, X Li, H Zhou, J Zhou - Frontiers in cellular neuroscience, 2022 - frontiersin.org
… In the first step, tryptophan hydroxylase (the rate-limiting enzyme for 5-HT production) metabolizes tryptophan to 5-hydroxytryptophan. In the second step, 5-hydroxytryptophan is …
202246 citations
medication-free alternatives for Long-term maintenance of Bipolar Disorder: a case Series
MI Gurevich, CL Robinson - Global Advances in Health and …, 2015 - journals.sagepub.com
Psychopharmacological treatment has been the mainstay in long-term maintenance of bipolar disorder (BD) patients for the last 60 years. Conventionally accepted treatment options are …
20158 citations
Dietary and botanical anxiolytics
E Alramadhan, MS Hanna, MS Hanna… - Medical science …, 2012 - pmc.ncbi.nlm.nih.gov
Drugs used to treat anxiety have many negative side effects including addiction, depression, suicide, seizures, sexual dysfunction, headaches and more. Anxiolytic medications do not …
201254 citations
Dr. Erika Krumbeck
E Krumbeck - Safety, 2026 - mtwholehealth.com
… acids on overall general health (reduction of inflammation, … ADHD to take a fish oil supplement for a minimum of 3 months as … , Thorne and Designs for Health are also reputable sources. …
2026
How Come They're Happy and I'm Not?: The Complete Natural Program for Healing Depression for Good
P Bongiorno - 2012 - books.google.com
… as a substitute for medical advice. If you have a specific health concern or are experiencing … I recommend taking a melatonin supplement a half hour before the desired bedtime to help …
20123 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2021-12-18. DSLD Label ID: 260325. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.