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Vitamins and supplements designed to release your inner strength

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Ester-C®
Capsules/Tablets
Chewables
Powders
Bone and Joint Health
Bones
Joints
Pain Relief
Heart Health
CoQ10
Digestive Health
Enzymes
Probiotics
General Health
Antioxidants
Brain Health
Eye Health
Essential Fatty Acids
Liver Health
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Stress & Sleep
Sugar Balancing
Vitamins & Minerals
Healthy Active Lifestyle
Performance
Immune Health
Allergies
Cold & Flu
Kids' Health
Cold & Flu
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Men's Health
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Prenatal
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Skincare
  • Co Q10 Soft Gel

    A powerful antioxidant that supports muscle and heart strength, combats gum disease, and slows the...

  • Co Q10 Vegetarian Capsules

    A powerful antioxidant that supports muscle and heart strength, combats gum disease, and slows the...

  • Cold Season

    Cold & Flu Rescue with Ester-C®

    Fast-acting, potent combination to boost immune health and lessen the severity and duration of cold...

  • New
    collagen box image

    Collagen-C

    Proven skin health benefits with a unique formula featuring eggshell-source collagen that promotes the body’s...

  • Cool B50

    Supports brain, liver, and adrenal functions, increases energy, promotes hormone balance, and supports healthy cholesterol...

  • Cranberry Ultra

    A high-potency extract that helps to prevent recurrent urinary tract infections

  • Cold Season
    Blue bottle of Sisu Ester-C 1000mg supplement.

    Ester-C® 1000 mg

    High-potency tablets enhanced with citrus bioflavonoids to help strengthen your immune system

  • Blue bottle of Sisu Ester-C 250mg Chewable.

    Ester-C® 250 mg Chewable

    A flavourful Ester-C® option for children and adults who don't like swallowing pills

  • Blue bottle of Sisu Ester-C 500mg Chewable.

    Ester-C® 500 mg Chewable

    A flavourful Ester-C® option for children and adults who don't like swallowing pills

  • Ester-C® 600

    The advanced immune-supporting properties of Ester-C® enhanced with 100 mg of citrus bioflavonoids for superior...

  • Box of Sisu Energy Boost

    Ester-C® Energy Boost

    A daily vitamin drink mix with 1000 mg of Ester-C®, B vitamins and electrolytes in...

  • Most Popular

    Ester-C® Supreme

    Ester-C® with powerful bioflavonoids and immune-boosting arabinogalactan to help strengthen your immune system and alleviate...

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Sisu
Release your inner strength

Products

  • Ester-C®
  • Bone and Joint Health
  • Heart Health
  • Digestive Health
  • General Health
  • Healthy Active Lifestyle
  • Immune Health
  • Kid’s Health
  • Women’s Health

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25 Sheppard Avenue West
Toronto, Ontario, M2N 6S6

csr@atrium-innovations.com

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© 2025 Sisu / Ester-C and Ester-C logo are reg. TMs of The Ester C Company

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