Arginine Supplements

16 products
Get expert advice
L-arginine is an amino acid your body uses to make nitric oxide — a molecule that signals blood vessels to relax and widen, which supports blood flow and circulation. That's why people reach for it both for everyday cardiovascular support and around training. It comes as capsules, tablets, and powders, on its own or paired with L-citrulline. Stocked here and shipped from our Ontario warehouse across Canada.

Category

Categories

    Filter Filter

    Filter By

    Clear All

    Sort by

    Sort by

    • 120 Tablets | NOW Double Strength L-Arginine 1000 mg

      NOW L-Arginine 1000mg, 120 Tablets

      NOW L-Arginine 1000mg, 120 Tablets

      $33.97 CAD
      $33.97 CAD
    • 150 Vegetable Capsules | Naka Platinum Pro L-Arginine

      Naka Platinum Pro L-Arginine 600mg, Helps to Boost Blood Flow, Athletic Performance, and Muscle Recovery, 150-300 Vegetable Capsules

      Made in Canada

      Naka Platinum Pro L-Arginine 600mg, Helps to Boost Blood Flow, Athletic Performance, and Muscle Recovery, 150-300 Vegetable Capsules

      from $19.97 CAD
      from $19.97 CAD
    • 100 Capsules | Biotics Research Immuno-gG

      Biotics Research Immuno-gG, Supports Immune and Gut Health with Bovine Colostrum, 100 Capsules

      New

      Biotics Research Immuno-gG, Supports Immune and Gut Health with Bovine Colostrum, 100 Capsules

      $60.00 CAD
      $60.00 CAD
    • CanPrev L-Arginine (2500mg per Scoop), 450g

      CanPrev L-Arginine (2500mg per Scoop), 450g

      Made in Canada

      CanPrev L-Arginine (2500mg per Scoop), 450g

      $39.99 CAD
      $39.99 CAD
    • 100 Vegetable Capsules | NOW Sports L-Arginine and L-Ornithine 500 mg/250 mg, Amino Acids

      NOW L-Arginine & L-Ornithine, 500mg/250mg, 100 Capsules

      NOW L-Arginine & L-Ornithine, 500mg/250mg, 100 Capsules

      $28.97 CAD
      $28.97 CAD
    • 700g Natural Peach | Metagenics ArginCor Powder

      Metagenics ArginCor Powder, L-Arginine, Supports Cardiometabolic Health, 700g CLEARANCE 25% Off Exp 4/27 Final Sale

      Clearance

      Metagenics ArginCor Powder, L-Arginine, Supports Cardiometabolic Health, 700g CLEARANCE 25% Off Exp 4/27 Final Sale

      $72.50 CAD
      $72.50 CAD
    • AOR Arginine 600mg, 180 Vegi-Capsules

      AOR Arginine 600mg, 180 Vegi-Capsules

      Made in Canada

      AOR Arginine 600mg, 180 Vegi-Capsules

      $37.05 CAD
      $37.05 CAD
    • Unflavoured, 454g | NOW Sports L-Arginine Powder, Amino Acids Free Form

      NOW L-Arginine Pure Powder, 454g

      NOW L-Arginine Pure Powder, 454g

      $53.97 CAD
      $53.97 CAD
    • Allmax Arginine HCL

      Allmax Arginine HCL

      Allmax Arginine HCL

      from $14.99 CAD
      from $14.99 CAD
    • 100 Vegetable Capsules | NOW L-Arginine 500 mg

      NOW L-Arginine 500mg Capsules

      Sold out

      NOW L-Arginine 500mg Capsules

      from $15.97 CAD
      from $15.97 CAD
      Sold out
    • 120 Vegetable Capsules | NOW Sports Arginine & Citrulline 500 mg/250 mg, Amino Acids

      NOW Arginine & Citrulline 500/250, 120 Capsules

      Sold out

      NOW Arginine & Citrulline 500/250, 120 Capsules

      $29.97 CAD
      $29.97 CAD
      Sold out
    • 100 Capsules | Biotics Research L-Arginine

      Biotics Research L-Arginine, Supports Cardiovascular Health, 100 Capsules

      Sold out New

      Biotics Research L-Arginine, Supports Cardiovascular Health, 100 Capsules

      $47.00 CAD
      $47.00 CAD
      Sold out
    • Allmax Agmatine + Arginine (Formerly Agmatine Sulfate), 45g

      Allmax Agmatine + Arginine (Formerly Agmatine Sulfate), 45g

      Sold out Made in Canada

      Allmax Agmatine + Arginine (Formerly Agmatine Sulfate), 45g

      $24.99 CAD
      $24.99 CAD
      Sold out
    • solaray-l-arginine-1000mg-30-tabs

      Solaray L-Arginine, Free Form 1000mg, 30 Tablets

      Sold out

      Solaray L-Arginine, Free Form 1000mg, 30 Tablets

      $10.49 CAD
      $10.49 CAD
      Sold out
    • 90 Tablets | Sisu L-Arginine

      SISU L-Arginine 1000mg, 90 Tablets

      Sold out Made in Canada

      SISU L-Arginine 1000mg, 90 Tablets

      $21.95 CAD
      $21.95 CAD
      Sold out
    • Nature's Way Alive! Men’s Once Daily with L-Arginine Multivitamin & Multimineral, 60 Tablets

      Nature's Way Alive! Men’s Once Daily with L-Arginine Multivitamin & Multimineral, 60 Tablets

      Sold out

      Nature's Way Alive! Men’s Once Daily with L-Arginine Multivitamin & Multimineral, 60 Tablets

      $22.99 CAD
      $22.99 CAD
      Sold out

    What people take arginine for

    • Blood flow & circulation — as a nitric-oxide precursor, arginine is most associated with supporting healthy circulation.
    • Exercise & training — popular before workouts for blood flow during exercise; often found in pre-workout blends.
    • Everyday cardiovascular support — some take it daily as part of a circulation-focused routine.

    L-arginine vs L-citrulline, and forms

    Arginine is the direct nitric-oxide precursor; L-citrulline converts into arginine in the body and is often gentler on the stomach at higher doses, which is why the two are frequently paired. You'll find capsules and tablets for a fixed dose, and powders for adjustable, higher amounts. You may also see arginine AKG (bonded to alpha-ketoglutarate), a form popular with athletes. For the wider blood-flow category, see nitric oxide supplements and beetroot.

    L-arginine in Canada

    L-arginine sold in Canada carries a Natural Product Number (NPN) from Health Canada and ships from our Ontario warehouse to addresses across Canada.

    A note on arginine

    Arginine is generally well tolerated, though some people notice mild stomach upset, bloating, or loose stools, especially at higher doses. Because it can affect blood flow and blood pressure, anyone with low blood pressure or a heart condition, taking medication, or who is pregnant or breastfeeding should check with a healthcare provider before use.

    L-Arginine FAQs