Sisu Sisu - Ester-C 250mg - Wildberry, 120 chew
Sisu Ester-C - 250 mg - Wildberry Flavour - A patented, non-acidic form of Vitamin C, developed by binding ascorbic acid with a mineral molecule. Ester C enters the blood stream 2 - 6 times faster than regular Vitamin C and cells retain the benefits up to 4 times longer. Vitamin C is a well-known, powerful antioxidant, available through diet or supplementation, essential for boosting immune functions, balancing cholesterol, assisting the absorption of iron, and necessary for the maintenance of healthy bones, teeth, gums, skin and blood vessels.
Price
Regular Canadian retail price: $20.98 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.
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 vitamin c spread through the day, people who smoke, anyone avoiding added colours.
What the research supports
Each chewable is 250 mg of vitamin C as Ester-C calcium ascorbate, near pH-neutral rather than sour. At four a day, the bottle of 120 lasts a month.
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.
- Iron absorption (evidence: strong, from pharmacokinetic studies, controlled depletion and repletion studies)
- Vitamin C converts plant iron into the form your gut can take up, so taking it with a meal multiplies how much iron that meal delivers.
- 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, Iron absorption on PubMed, Stomach comfort on PubMed.
Is it right for you
Worth it if
- adults who want vitamin C spread through the day
- 250 mg is close to the largest single dose the gut still absorbs efficiently, so four of these beat one 1,000 mg tablet on absorbed milligrams.
- people who smoke
- smoking raises the daily vitamin C requirement by about 35 mg and burns through blood levels faster, and a single tablet covers that elevated requirement several times over.
- anyone avoiding added colours
- the flavour is raspberry and black raspberry and there is no colouring agent on the panel, so the tablet is not tinted by anything.
Look elsewhere if
- someone who wants one dose and done
- at 250 mg a tablet an adult gram is four chews. A 1,000 mg buffered tablet handles that in one, and per gram it is cheaper.
- children under four
- the directions begin at four years old. Younger children need a liquid vitamin C measured in drops rather than a tablet to chew.
- anyone watching fruit sugar closely
- dextrose and fructose are both in the tablet. A swallowed ascorbate capsule gives you the same vitamin C with neither.
What to expect
No sensation at any point. Vitamin C is not something you feel working. Across a winter of steady use the measurable effect is about a day off how long a bug lasts, not fewer bugs. Overshoot your own bowel tolerance and you will get loose stools within hours.
How it compares
- Compared with a 1,000 mg vitamin C tablet
- splitting a gram into four 250 mg chews across the day gets more of it into your blood, since absorption efficiency drops as the single dose climbs. The tradeoff: four chewing events instead of one swallow, four rounds of citric acid and fruit sugar on your teeth, and a bottle that lasts a month rather than four.
- Compared with vitamin C powder stirred into water
- an exact 250 mg per tablet with nothing to measure, portable, and buffered so there is no sour bite. The tradeoff: powder is dramatically cheaper per gram and spends no time in contact with your teeth.
Product details
- Active ingredient
- Calcium (calcium ascorbate)
- Ingredient form
- chew
- Strength
- 250 mg
- Servings per container
- 120
- Suggested use
- Adults: Chew 2-6 tablets per day, or as directed by your health practitioner. Children (4 and up): Chew 1-2 tablets 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 2-6 tablets per day, or as directed by your health practitioner. Children (4 and up): Chew 1-2 tablets 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
- Calcium (calcium ascorbate)
- 11.3 mg
- (from Ester-C Brand calcium ascorbate and sodium ascorbate)Vitamin C
- 250 mg
Non-medicinal ingredients
Stevia rebaudiana leaf powder, dextrose, D-fructose, citric acid, silicon dioxide, guar gum, stearic acid (vegetable), magnesium stearate (vegetable), natural flavours (raspberry, black raspberry).
Free from
Contains no dairy, wheat, gluten, artificial flavours, artificial sweeteners or colours.
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 250mg - Wildberry
- 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.