L-Arginine 400 mgnone

Amino Acids & Protein

Brand: Signature Supplements

CapsuleAmino acid/ProteinOn Market
Click to view full label

Net Contents

100 Capsule(s)

Serving Size

1–2 Capsule(s)

Servings Per Container

50

Supplement Form

Capsule

Bar Code (UPC/SKU)

Not specified

Product Version

Not Present

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.

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.

Supplement Facts

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

IngredientAmount Per Serving
L-Arginine800 mg

Not Present

Other Ingredients

CelluloseDiatomaceous Earth

Target Groups

Adult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

All OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Directions: For adults, take one (1) to two (2) capsules daily, preferably with a meal.

Warnings & Precautions

Precautions re: Pregnant or Nursing or Prescription Medications

Warning: Pregnant or lactating women should consult a doctor before using any product. Consult doctor before use if you have, or have had, kidney disease or if you are taking any medications or remedies such as those to treat high blood pressure, heart medications, muscle relaxants or diuretics.

Precautions re: All Other

Discontinue use and consult your doctor if any adverse reactions occur, such as gastrointestinal discomfort or low blood pressure.

Precautions re: Children

Not intended for use by persons under the age of 18.

Storage

Storage

Store in a dry place and avoid excessive heat.

Formulation

Formulation re: Does NOT Contain

No: Chemical Fillers or Binders, Artificial coloring, artificial flavor, preservatives, yeast, corn, milk or milk derivatives, lactose, salt, sodium, soy, sugar, gluten, starch or wheat.

Formulation re: Other

From a GMP Facility

Formulation re: Other

Precursor of Nitric Oxide Time release

FDA Statements

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.

FDA Statement of Identity

Dietary Supplement

Other Label Statements

General Statements: All Other Content

Use by: 12/15/2026 www.yoursignaturesupplements.com

Manufacturer & Distributor

Distributor

Signature Supplements

P.O. Box 1112, San Clemente, CA

Market Reference

$14.99 – $153.97· 5 listings
  • Bodybuilding Signature No2 Nitric Oxide 60 Capsules L-argini Magnesium

    eBay
    $14.99Lowest
  • Snap L Arginine Capsules

    GNC4.7(6)
    $26.99
  • L-Arginine Powder

    BulkSupplements.com4.6(1700)
    $153.97
  • Green Line Nutritheke Arginin 400 mg Kapseln

    apohealth.de
    $24.89
  • Nitric Oxide Booster - Extra Strength L-arginine Capsules For Energy

    eBay - purplebuk
    $45.59

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.

  • The Vitamin Shoppe

    4.4 (103)

    Vitamin & supplements store

    2100 88th St F4, North Bergen, NJ 07047

  • GNC

    4.2 (77)

    Vitamin & supplements store

    52-10 Bergenline Ave, West New York, NJ 07093

  • Be Vitamin Health Food Store

    5.0 (27)

    Health food store

    4500 Bergenline Ave # A, Union City, NJ 07087

  • Aminocu – Supplement Mağazası

    4.9 (70)

    Vitamin & supplements store

    Şehitler cad. Barboros hayrettin paşa mah. 1997.Sok Aminocu Shop Beypalas, 34515 Esenyurt/İstanbul, Türkiye

  • GNC

    4.4 (92)

    Vitamin & supplements store

    753 Broadway Spc 753, New York, NY 10003

  • Proteinci

    4.9 (38)

    Vitamin & supplements store

    Siyavuşpaşa, Çamlık Cd. No:2, 34182 Bahçelievler/İstanbul, Türkiye

  • The Vitamin Shoppe

    4.5 (139)

    Vitamin & supplements store

    130 NJ-17 Suite 14, East Rutherford, NJ 07073

  • Bodystore.nl Supplements

    4.7 (105)

    Vitamin & supplements store

    Vogt 19, 6422 RK Heerlen, Netherlands

Research & Studies

  • Metabolic Regulation of Immune Responses to Mycobacterium tuberculosis: A Spotlight on L-Arginine and L-Tryptophan Metabolism

    RR Crowther, JE Qualls - Frontiers in immunology, 2021 - frontiersin.org

    … Specifically, we discuss L-arginine and L-tryptophan, focusing on their requirements, regulatory roles, and potential use as adjunctive therapy in TB patients. By continuing to uncover …

    202144 citations
  • Role of l-arginine in the prevention of pre eclampsia in high-risk pregnancies

    N Taj - The Professional Medical Journal, 2021 - academia.edu

    … studies that evaluated the efficacy of L-arginine for preventing PE and … The results revealed that L-arginine was more effective in … Our findings revealed that L-arginine supplementation …

    20216 citations
  • Plasma metabolome analysis suggests that L-arginine supplementation affects microbial activity resulting in a decrease in trimethylamine N-oxide—A …

    L Dimina, M Tremblay-Franco, A Deveaux… - Current Developments …, 2023 - Elsevier

    Background The effects of supplementation with L-arginine (L-arg), the precursor of nitric oxide (NO), on vascular and cardiometabolic health have largely been explored. Whether other …

    20234 citations
  • Essence of Chicken Supplementation Alters Brain and Blood Metabolite Signatures in Sleep-Deprived Mice

    Y Long, Z Wang, X Hu, S Wang, L Zheng, Z Fu, Y Ni - Metabolites, 2025 - mdpi.com

    … levels of L-arginine following EC supplementation, which serves … suggest that the elevated L-arginine may potentiate cAMP … In addition, we found that EC supplementation resulted in a …

    2025
  • A Translational Randomized Trial of Perioperative Arginine Immunonutrition on Natural Killer Cell Function in Colorectal Cancer Surgery Patients: L. Angka et al.

    L Angka, AB Martel, J Ng, A Pecarskie, M Sadiq… - Annals of Surgical …, 2022 - Springer

    … More recently, findings have shown that T cells adapt metabolically to changes in L-arginine concentrations, and that elevated L-arginine enhances T cell survivability and maintains …

    202225 citations
  • L-arginine metabolism in breast cancer: mechanisms and therapeutic targets

    A Röglin, R Böger, J Hannemann - Frontiers in Oncology, 2026 - frontiersin.org

    … L-arginine metabolism has been explored by three main approaches: L-arginine starvation, L-arginine supplementation… of current knowledge on L-arginine metabolism in breast cancer, …

    2026

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2025-09-25. DSLD Label ID: 338803. 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.