Proargi-9 BOXPROARGI-9+


ProArgi-9 Plus is Synergy’s top selling product present in many world markets for several years. One serving contains 5,000 mg of elemental pharmaceutical grade L-arginine and L-citrulline.

The remarkable properties of l-arginine as a precursor of nitric oxide (NO) were validated by the Nobel Prize in Medicine, and since then have created a frenzy of interest in the nutraceutical and pharmaceutical fields. A significant efficacy of L-arginine and L-citrulline as a therapeutic agent has been validated by many scientific studies.

  • Directly from Synergy
  • Delivery time: 1-2 business days
  • Unit size: 30 SSP box, Jumbo-pack
  • Variants: Mixed Berry, Grape, Citrus Berry





    • ProArgi 9 Plus contains the highest dose of L-arginine
    • L-citrulline enhances and prolongs the effect of L-arginine
    • Contains vitamin C (l-ascorbic acid) for normal functioning of the nervous and immune systems
    • Vitamin K2 (menachinon) for normal bones and blood coagulation
    • Contains valuable resveratrol in red grape skin extract
    • Vitamin B6 (pyridoxin) and B12 (cyanocobalamin) for normal red blood cell formation and homocysteine metabolism
    • Contains also vitamin B9 (folic acid)
    • Vitamin D3 (cholecalciferol) needed for proper management of calcium and strong bones
    • Unique formula, the synergistic effect of all components
    • Flavored for a refreshing, citrus, mixed berry or grape taste
    • Each batch is tested 250 times for potency and purity
    • They entered the US pharmacopeia PDR 2014 – 2022

    Note: Table of ingredients does not include many minerals and vitamins, which are a component of fruit extracts included in the ProArgi-9 Plus.  The product contains no preservatives and synthetic dyes

  • ProArgi-9+ can be taken at any time during the day, simply mix one scoop or one packet with 4-8 oz. water (to your taste) and stir until dissolved. One serving may be taken twice per day. Store in a cool, dry place. Keep away from small children.
    Sports or fitness: 1 serving 30 minutes before workout.
    • The price per packaging unit depend on the package – in larger packages is cheaper!
    •  Shipping cost: US – $10, Canada – $9. Prices do not include tax (US, Canada).
      “CV” is only a selling points for the distributor.
    • ProArgi-9 Plus ordered by the US Shop are shipped directly from the warehouse of Synergy Worldwide and delivered only in USA.
    • If you want to buy products in a different country, select it from the list at the top of the Synergy website.
    • You buy directly from Synergy Worldwide. The consignment consists of proof of purchase, which confirms the originality of products and is the basis for consideration of possible claims.
    • Manufactured at GMP-certified facility in the US.
    • ProArgi-9+ is not available in pharmacies, it is sold only in direct sales.
  • Mixed Berry Grape Citrus Berry
    Mixed Berry Grape Citrus Berry
    • Supports cardiovascular health
    • Enhances blood flow to vital organs
    • Combats the negative effects of premature cardiovascular aging
    • May aid in decreasing body fat
    • Anti-aging benefits
    • Maintains healthy blood sugar levels already in normal range
    • May boost energy levels

    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.

  • The conservative approach usually prevents the occurrence of side effects.

    Some individuals experience a bit of pressure in the head resembling a headache. This is heightened oxygenation of blood flow to the brain. It will disappear when the body gets used to it once again.

    Some individuals may experience loose stool or diarrhea. If these intestinal symptoms don’t subside with regular use, you may reduce gradually the dosage you take in one shot until it eventually ceases. Then, once again increase slowly the dosage until you get the right amount.

    Another solution is to mix your dose ProArgi-9 Plus in 18 ounces (a little over 500 ml) of water. Instead of drinking it all in one shot, you may sip a little bit of the mix over 2 to 3 hours.

    This simple solution prevents a spike in nitric oxide production. It is this spike that triggers a bowel movement.

    Most people get accustomed to the laxative action of xylitol with regular use. If you find that xylitol upsets your stomach, try the grape flavor. It does not use xylitol.

  • Claudia R. Morris, Frans A. Kuypers, Lisa Lavrisha, Michael Ansari, Nancy Sweeters, Melinee Stewart, Ginny Gildengorin, Lynne Neumayr, Elliott P. Vichinsky Haematologica September 2013
    A randomized, placebo-controlled trial of arginine therapy for the treatment of children with sickle cell disease hospitalized with vaso-occlusive pain episodes

    The effect of oral L-arginine supplementation on fasting glucose, HbA1c, nitric oxide and total antioxidant status in diabetic patients with atherosclerotic peripheral arterial
    disease of lower extremities

    Christoffer Clemmensen, Sanela Smajilovic, Eric P. Smith, Stephen C. Woods, Hans Bräuner-Osborne, Randy J. Seeley, David A. D’Alessio, and Karen K. Ryan
    Oral l-Arginine Stimulates GLP-1 Secretion to Improve Glucose Tolerance in Male Mice

    Mohamed Z. Gad
    Department of Biochemistry, Faculty of Pharmacy and Biotechnology, The German University in Cairo – GUC,
    Main Entrance Al Tagamoa Al Khames, New Cairo City 11835, Egypt
    Anti-aging effects of l-arginine

    Jing Yi, Laura L. Horky, Avi L. Friedlich, Ying Shi, Jack T. Rogers and Xudong Huang
    Neurochemistry Laboratory, Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Charlestown,USA; Division of Nuclear Medicine and Molecular Imaging, Department of Radiology, Brigham and Women’s Hospital and Harvard Medical School, Boston, USA
    L-Arginine and Alzheimer’s Disease
    L-arginina w chorobie Alzheimera

    Leszek Ceremużyński, MD, PhD, Tomasz Chamiec, MD, and Krystyna Herbaczyńska-Cedro, MD, PhD
    Effect of Supplemental Oral L-Arginine on Exercise
    Capacity in Patients With Stable Angina Pectoris

    George Eby, William W. Halcomb
    Elimination of cardiac arrhythmias using oral taurine with L-arginine with case histories: Hypothesis for nitric oxide stabilization of the sinus node





Full Offer only for the US market



As with any nutritional product, consult your doctor before use, especially if pregnant, lactating, have a known medical condition of any kind, or are taking any form of medication or food supplement. This product should not replace a balanced diet and healthy lifestyle.

L-arginine Complexer ProArgi-9+ is not a drug but a dietary supplement. So you can not speak here of the effects of overdose or side effects. Consuming too much can cause an effect similar to overeating. Some individuals may experience loose stool or diarrhea. There are also, although rarely, allergic to any of the ingredients. If in doubt, consult a doctor or nutritionist



  • How should I store the product?

    Proargi 9 Plus to keep the properties for the full shelf life (18 months) only if it is kept cool and dark place and in a closed container, can be stored in the refrigerator. Avoid moisture, which causes agglomeration of the powder. Should not be stored for a longer time open packages.
  • What is the shelf life in the factory packaging?

    This should be used before the expiration date on the packaging. Usually within 15 months from the date of purchase.
  • Do arginine in ProArgi-9+ is of natural origin?

    Arginine is produced by natural fermentation and is a free form. Natural arginine will be announced after the letter "l-" - l-arginine.
  • Is Proargi 9 Plus a drug?

    No. It is an advanced product that fosters the health, the status of a dietary supplement. The product has been registered in the US pharmacopoeia PDR 2014-2017.
  • What form of arginine contains ProArgi 9 Plus?

    This supplement contains a free, natural form of the amino acid - L-arginine, obtained in the process of natural fermentation of carbohydrates.
  • Why ProArgi-9+ contains L-citrulline?

    Briefly: L-citrulline enhances and extends today l-arginine. The L-citrulline ProArgi-9+ is low (200 mg per serving) but sufficient to ensure the desired effect.
  • Why not to buy this from Amazon or eBay?

    It is better to buy Synergy products from authorized distributors. You can also buy products directly from this website under the sponsorship of an authorized distributor.

    Recently, many sellers are using sites like Amazon, eBay or other auction/shopping sites as platforms to sell Synergy's products. There are four main reasons why not to buy from such sites:

    Reason #1
    In its Policies and Procedures document, Synergy WorldWide clearly states that "Team Members may not sell products on eBay, Amazon, or any other Internet auction/shopping site".

    Team members (authorized distributors) selling products on such platforms are not compliant with these policies and procedures. Team members participating in such activities are subject to disciplinary measures from Synergy.

    Reason #2
    Synergy WorldWide operates a strong quality assurance policy and guarantees the potency, the purity and safety of each product it manufactures and sells directly to customers or through authorized distributors. On top of this guarantee, the Company also offers a 90-day 100% money-back guarantee on initial product orders. All subsequent orders are also protected. A 100% money-back return is offered if the products have not been opened, used or damaged.

    Purchasing directly from Synergy prevents a lot of headaches to customers. Especially when comes time to request refunds.

    Reason #3
    The cost of one canister/box of ProArgi 9 Plus on Amazon or eBay is usually less than the cost of the same unit sold on this website. This is a huge incentive for customers looking for a better deal. However, they are not aware that Synergy offers wholesale prices. The wholesale prices often beat the offering on Amazon or eBay.

    Reason #4
    Buying supplements directly from Synergy ensures that products are fresh, have a shelf life of at least 15 months, have been stored and transported under appropriate conditions and their packaging are intact.
  • Should I drink it before eating or after a meal?

    For maximum benefit, ProArgi-9+ should be taken on an empty stomach. Taking 40 minutes before eating food should be sufficient to promote optimal absorption.
  • Can you buy it cheaper?

    ProArgi 9 Plus and other Synergy products are best to buy in packages of several pieces. Then the unit price is much lower.
  • Is ProArgi-9+ approved by the FDA?

    Because this product is a nutritional supplement, it is not approved by the FDA. FDA approval only applies to drugs.
  • How long has this supplements been produced?

    ProArgi-9 is produced and sold successfully around the world for several years. It's the flagship, best-known Synergy product.
  • What is the difference between the three ProArgi-9+ formulas?

    The main difference is the formula for sweetening. Mixed Berry uses xylitol, stevia leaf extract (stevia rebaudiana) and other natural sweetener ( pea protein, inulin, fructose, and natural flavors). Citrus Berry (U.S. version) is sweetened with suclarose. Grape is sweetened with monk fruit extract.
  • In which countries can I buy ProArgi-9 Plus?

    Currently, Synergy products can be purchased, among others in the USA, Canada, UK, Ireland, Norway, Finland, Sweden, Denmark, the Netherlands, Poland, Spain, Italy (Italia), Germany, Austria, South Korea, Japan and many more.
  • Dosage

    One serving may be taken twice per day.
  • Does ProArgi-9+ interact with the drugs you are taking?

    If you are taking medication for treated conditions, it is recommended that you consult your doctor about the use of any supplements.