Brand: NOW

CapsuleAmino acid/ProteinOff Market
Click to view full label

Net Contents

180 Veg Capsule(s)

Serving Size

1 Veg Capsule(s)

Servings Per Container

Not specified

Supplement Form

Capsule

Bar Code (UPC/SKU)

7 33739 00101 6

Product Version

CODE 0101B V3

Label Analysis

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

1Active Ingredients

Single-ingredient formula listed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

4Dietary Attributes

Label states: Vegan, Vegetarian, Non-GMO, Gluten-Free.

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

Supplement Facts

Serving Size: 1 Veg Capsule(s) · 1 per day

IngredientAmount Per Serving
5-Hydroxytryptophan(Griffonia simplicifolia Seed Extract)50 mg—

Not Present

Other Ingredients

Rice FlourCellulose

Target Groups

VeganVegetarianAdult (18 - 50 Years)Gluten FreeDairy Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Suggested Usage: Take 1 capsule daily, preferably on an empty stomach at bedtime.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Consult physician if pregnant/nursing, taking medications (especially antidepressants), or have a medical condition.

Precautions re: All Other

May cause drowsiness and mild transient GI symptoms.

Precautions re: Children

Keep out of reach of children.

Precautions re: Allergies

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Storage

Storage

Store in a cool, dry place after opening.

Formulation

Formula re: Type

Caution: For adults only.

Formulation re: Vegetarian/Vegan

Vegetarian/Vegan

Formulation re: Does NOT Contain

Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.

FDA Statements

FDA Disclaimer Statement

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

FDA Statement of Identity

A Dietary Supplement

Other Label Statements

Seals/Symbols

GMP QUALITY ASSURED

General Statements: All Other Content

5-HTP, the intermediate metabolite between the amino acid L-tryptophan and serotonin, is extracted from the seed of an African plant (Griffonia simplicifolia).

General Statements: All Other Content

Natural color variation may occur in this product.

General Statements: All Other Content

CAPSULE SIZE

General: Product/Version Code

CODE 0101B V3

General Statements: All Other Content

Neurotransmitter Support* Supports Positive Mood*

Seals/Symbols

Non-GMO

General Statements: All Other Content

Amino Acids Family owned since 1968.

General Statements: All Other Content

Please Recycle.

Manufacturer & Distributor

Manufacturer

NOW Foods

395 S. Glen Ellyn Rd., Bloomingdale, IL, 60108, USA

Market Reference

$4.88 – $89.99· 40 listings
  • Now 5 HTP mg

    iHerb4.7(3000)
    $4.88Lowest
  • (2 pack) NOW Supplements, 5-htp (5-hydroxytryptophan) 50 mg, Neurotransmitter Support*, 90 Veg Capsules, Other

    Walmart - Fruitful Yield4.7(3000)
    $26.24
  • (2 pack) NOW Supplements, 5-htp (5-hydroxytryptophan) 50 mg, Neurotransmitter Support*, 180 Veg Capsules, Beige

    Walmart - Fruitful Yield4.7(3000)
    $40.12
  • (2 pack) NOW Foods 5-htp, 60 Veg Capsules, Size: 4.30

    Walmart - Fruitful Yield4.8(1900)
    $36.64
  • Now Foods 5-HTP 200 mg 120 Veg Capsules

    Target4.8(1900)
    $36.99
  • NOW Foods 5-HTP Double Strength 200 mg 60 Veg Capsules

    NOW4.8(1900)
    $29.99
  • NOW Foods 5-HTP 100 mg Chewable

    Target4.7(9800)
    $19.99
  • 5HTP Now View Nutrition Facts

    The supplements factory
    $30.00

Where to Buy Locally

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Research & Studies

  • The Impact of 5-Hydroxytryptophan Supplementation on Cognitive Function and Mood in Singapore Older Adults: A Randomized Controlled Trial

    S Li, CN Sutanto, X Xia, JE Kim - Nutrients, 2025 - mdpi.com

    … capsules (NOW Foods, Bloomingdale, IL, USA) 20–30 min before bedtime or the control … were cognitively healthy and had not previously taken 5-HTP supplementation, 100 mg was …

    20254 citations
  • Sleep Supplement Dosage and Timing Guide: When to Take What

    WMI Best, G vs L-Threonate - smartersupplementreviews.com

    … 5-HTP converts to serotonin, which your body then converts to … Take 100–300 mg on an empty stomach 30–60 minutes … — discuss your supplement plan with your healthcare provider or …

  • A Forensic Investigation into Neuro-Logistics, and Why the Perfect Precursor (5-HTP) Demands the Keyora 8-in-1 Ecosystem.

    I was Fortified - keyorahealth.com

    … is accidentally sabotaging your mental health, and why Tryptophan – … Now we will see why the Gut Serotonin can’t get in. … This is why so many people quit 5-HTP supplements after three …

  • Herbal appetite suppressants used to aid weight loss

    S Malik, S Patel, DH Kuntawala, GNN Neba Ambe… - Phytochemistry …, 2025 - Springer

    … now prohibited in many countries. The latter does not necessarily mean that the drugs are not available; a supplement … in functional foods or as nutraceuticals for healthy routine. Herbal …

    20255 citations
  • 5-HTP for Weight Loss: Clinical Trials, Dosing Protocol & GLP-1 Comparison

    ATA June, AT Amarfei - sureokgo.com

    … This raises an intriguing possibility: 5-HTP supplementation might not just produce … I've lost 13kg in the last 4 months, and now my BMI is back in the healthy range. For the first …

  • The effect of 5-hydroxytryptophan, a serotonin precursor, on adults with high levels of Attention Deficit Hyperactivity Disorder traits: A randomised, controlled trial

    E Jackson, T Riley, PG Overton - PloS one, 2026 - journals.plos.org

    2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2015-11-24. DSLD Label ID: 53318. 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.