Is this the genuine, authentic product?

Yes. It is identical to what you would pay full price for anywhere else, sourced through our authorized supplier relationships.

How is the price below retail?

We buy direct, with nobody in the middle taking a cut, and we sell it for close to what we paid. You see the price privately because you have unlocked the Vault.

How fast does it ship?

Orders placed before 12pm PT are processed the same day and ship within two business days. Shipping is free over $89, and a flat $9.95 under that.

You have 30 days after it arrives to request a return. Product must be unused, in its original packaging, with proof of purchase, and return shipping is paid by you. Find it cheaper anywhere in Canada and we will match the price.

Sisu Sisu - Ester-C 500mg - Orange, 90 chew

Name: Sisu Sisu - Ester-C 500mg - Orange, 90 chew
Brand: Sisu
SKU: sisu-ester-c-500-mg-orange
Price: 22.98 CAD
Availability: InStock

Sisu Ester-C 500 mg - Orange - Chewable tablets for those wanting to avoid swallowing pills. Helps in the development and maintenance of bones, cartilage, teeth and gums. 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.

Price

Regular Canadian retail price: $22.98 CAD. Price Vault members pay below retail on this product. Member pricing is private and shown after a free opt-in, with no membership fee, no minimum order and no subscription.

In stock. Free shipping across Canada on orders over $89, flat $9.95 under that. 30 days to request a return, with return shipping paid by the customer. Ships from Victoria, BC.

See member pricing on Sisu Sisu - Ester-C 500mg - Orange

Why people keep reordering it

Year-round defense: Daily support for a resilient immune response.
Antioxidant support: Helps protect cells from everyday oxidative stress.
Tradition meets research: Time-tested ingredients in clinically informed doses.

Best suited to: adults who want the day's dose in one chew, people who cannot swallow pills, children nine to thirteen.

What the research supports

Each chewable is 500 mg of vitamin C as Ester-C calcium ascorbate, colored with turmeric and beet root. At one tablet a day, 90 tablets covers three months.

Studies use 200 mg or more a day.

Symptom duration (evidence: moderate, from randomized controlled trial, meta-analysis): Vitamin C taken regularly at 200 mg or more shortens how long seasonal symptoms last in pooled adult trials, though it does not reduce how often people fall ill.
Collagen formation (evidence: strong, from mechanistic research, controlled depletion and repletion studies): Vitamin C is a required cofactor for the enzymes that cross-link collagen, the structural protein that holds skin, cartilage and gums together, so intake needs to stay adequate for them to rebuild properly.
Stomach comfort (evidence: mixed, from randomized controlled trial, crossover trial): Calcium ascorbate sits near neutral pH instead of the sharp acidity of plain ascorbic acid, which is gentler on the stomach lining, though controlled trials show similar blood levels between the two forms.

Read the literature: Symptom duration on PubMed, Collagen formation on PubMed, Stomach comfort on PubMed.

Is it right for you

Worth it if

adults who want the day's dose in one chew: 500 mg in a single tablet is a full supplemental dose, where the smaller chewables need two or four to get there.
people who cannot swallow pills: it is chewed, and because the vitamin C is a buffered salt rather than ascorbic acid it does not taste sharply sour on the way down.
children nine to thirteen: one tablet is 500 mg against a 1,200 mg daily upper level for that age, so it fits with room to spare where a younger child has none.

Look elsewhere if

four to eight year olds: one tablet is 500 mg, which is most of the 650 mg daily upper level for that age group. A 250 mg chewable is the right size for that child.
anyone planning on three tablets a day: 1,500 mg in a day is beyond the point of saturation and mostly leaves in urine. Two tablets spaced apart, or 500 mg once daily, is the better habit.
someone who wants no fruit sugar at all: dextrose and fructose are both in the tablet. A swallowed capsule of calcium ascorbate gives the same buffered vitamin C without them.

What to expect

Nothing perceptible, on any day. What steady use through the winter buys you is a modest shortening of how long something lasts once you have it, on the order of a day, rather than fewer episodes. The only immediate feedback is loose stools if you go well past a gram or two at once.

How it compares

Compared with the 250 mg chewable of the same range: an adult dose is one tablet rather than two, and 90 tablets runs three months at one a day instead of weeks. The tradeoff: you lose the ability to dose a small child safely, because a single tablet is most of a four to eight year old's daily upper level.
Compared with a 500 mg vitamin C capsule you swallow: no swallowing and no sourness, with the same milligrams in a form that a person who gags on pills will actually take. The tradeoff: chewing brings citric acid, dextrose and fructose across your teeth twice a day, which a swallowed capsule never does.

Product details

Medicinal ingredients: Vitamin C, Calcium (calcium ascorbate), (from Ester-C Brand calcium ascorbate and sodium ascorbate)
Ingredient form: chew
Strength: 500 mg
Servings per container: 90
Suggested use: Adults: Chew 1-3 tablets a day or as directed by a health care practitioner. Children (4 and up): Chew 1 tablet a day or as directed by a health care practitioner. Take with food.
Country of manufacture: Canada
Independent testing: independent third-party labs
Certifications: Non-GMO, Made in Canada
Storage: Store in a cool, dry place
Brand: Sisu

How to take it

Adults: Chew 1-3 tablets a day or as directed by a health care practitioner. Children (4 and up): Chew 1 tablet a day or as directed by a health care practitioner. Take with food.

Store in a cool, dry place away from direct light.
Keep out of reach of children.
Consult a practitioner if you are pregnant, nursing or on medication.

Ingredients

Each chewable tablet contains

Vitamin C: 500 mg
Calcium (calcium ascorbate): 22.5 mg
(from Ester-C Brand calcium ascorbate and sodium ascorbate)

Non-medicinal ingredients

Stevia rebaudiana leaf, dextrose, D-fructose, citric acid, natural flavour (orange), guar gum, stearic acid (vegetable), magnesium stearate (vegetable), natural colours (turmeric, beet root powder), silicon dioxide.

Free from

Contains no dairy, wheat, gluten, artificial flavours, artificial sweeteners or colours. Suitable for a vegan diet.

Interactions and cautions

Medications: Some immune botanicals may interact with immunosuppressant medication. Review with your practitioner.
Timing: Separate from medications by 2 to 4 hours unless directed otherwise by a healthcare practitioner.
Pregnancy and breastfeeding: Consult a healthcare practitioner before use if pregnant or breastfeeding.
General: Use only as directed. Discontinue and consult a practitioner if you experience an adverse reaction.

This product is not intended to diagnose, treat, cure or prevent disease. Consult a healthcare practitioner before use. Free certified advisors are available at 1-888-386-1211, Mon to Fri, 9am to 5pm PT.

Questions about Sisu - Ester-C 500mg - Orange

Is this the genuine, authentic product?: Yes. It is identical to what you would pay full price for anywhere else, sourced through our authorized supplier relationships.
How is the price below retail?: We buy direct, with nobody in the middle taking a cut, and we sell it for close to what we paid. You see the price privately because you have unlocked the Vault.
How fast does it ship?: Orders placed before 12pm PT are processed the same day and ship within two business days. Shipping is free over $89, and a flat $9.95 under that.
Can I return it?: You have 30 days after it arrives to request a return. Product must be unused, in its original packaging, with proof of purchase, and return shipping is paid by you. Find it cheaper anywhere in Canada and we will match the price.