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Sisu Ester-C Powder

Sisu Ester-C Powder

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Regular Price: CA$28.49

Special Price: CA$21.99

Availability: In stock

Quick Overview

Sisu Ester-C Powder contains bioflavonoids.

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Sisu Ester-C Powder

Vitamin C is a water-soluble antioxidant and one of the best researched nutrients.* Most mammals can produce vitamin C as they need it but the human system evolved without this ability, and therefore we must ensure an adequate daily intake to stay healthy.* Vitamin C is found in fruits and vegetables, but it is easily destroyed by heat, cooking, processing, and storage, and is rapidly eliminated from our system in the urine.* Inadequate levels of vitamin C may be seen in cases of physical and mental stress, older people and those with chronic conditions including cardiovascular disease, asthma, arthritis, age-related eye disease, and certain cancers.* Vitamin C is best acknowledged for strengthening the immune system by supporting and improving white blood cell function.* It is also essential for the proper formation of collagen, the building block of many tissues and a crucial component in skin rejuvenation.* Vitamin C also helps to reduce histamine release in the body, thereby alleviating allergy symptoms.* There are numerous forms of vitamin C with ascorbic acid being the most basic.* People wanting a clinically proven form that is easier on the system than ascorbic acid may choose a form like Ester-C brand calcium ascorbate.*

  • Ester-C is a unique, patented form of calcium ascorbate, which is made when ascorbic acid (regular vitamin C) is buffered with calcium using a water-based process.*
  • The calcium in Ester-C provides part of your daily calcium requirements.*
  • Ester-C contains active vitamin C metabolites including L-threonate, which enhance cellular absorption and retention.*
  • Ester-C is the only form of vitamin C that has been proven to last up to 24 hours in the white blood cells of the immune system.*
  • Less acidic and easier on the stomach than ascorbic acid.*
  • Enhanced with antioxidant bioflavonoids from citrus fruits for superior absorption.*


  • Formulated with no non-medicinal ingredients*
  • Powder form for flexible dosing (people can personalize the amount they take at one time)*
  • Suitable for vegans*
  • Contains no ingredients that are a source of gluten*
  • Good Manufacturing Practices standards*
  • Tested for guaranteed purity and potency*
  • NPN approved*


These statements have not been evaluated by Health Canada or the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.


Nutrition Facts
Serving Size:  ¼   Teaspoon (1.2 grams)

Amount Per Serving

% Daily Value *
Vitamin C from Ester-C brand calcium ascorbate
765 mg
Calcium (calcium ascorbate) 145 mg
Bioflavonoids (citrus fruits) 180 mg
* Percent daily values are based on a 2000 calorie diet
† Daily Value not established

Recommended Use: Take 1.2 grams (1/4 teaspoon) dissolved in juice or water twice daily or as directed by a health care practitioner.

Contains No: Dairy, wheat, gluten, soy, flavours, colours, or sweeteners