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Thompson's Ultra C 1000mg


  • 60 tablets

    RRP: NZ$32.90

    You save 17% (NZ$5.70)

  • 180 tablets

    RRP: NZ$79.60

    You save 17% (NZ$13.70)

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Thompson's Ultra C, an advanced form of Vitamin C, is easier to absorb ino the body, and gentler on the stomach than other Vitamin C complexes that use highly acidic ascorbic acid (pH 2.4).
Thompson's state-of-the-art, advanced Poly-ascorbate form has a clear advantage over ordinary Vitamin C. As well as better absorption, Ultra C supplies calcium, magnesium, potassium and zinc, minerals that are often excreted and lost when Vitamin C increases in the body.

Ultra C also provides the valuable cofactors Bioflavonoids, Rosehips and Zinc to further enhance the action of the complex.
Vitamin C's primary function is the manufacture of collagen, which is a crucial protein in the connective tissue, cartilage and tendons that hold the body together. So as well as a powerful immune booster, Vitamin C is useful for repairing wounds, preventing bruising and keeping gums healthy. Vitamin C also has a critical role in the manufacture of certain nerve transmitting substances and hormones, and the absorption and use of other nutritional factors.

Vitamin C affects immune function by enhancing white blood cell activity and increasing interferon levels and antibody responses. During times of chemical, emotional, physical or psychological stress, the urinary system excretes Vitamin C in significant amounts, thereby increasing the body’s need for this vitamin. Vitamin C is the first line antioxidant protection, making it one of our most important antioxidant nutrients.
Indications for Use:

Vitamin C benefits the body in so many ways. It helps boost immunity, and as a powerful antioxidant is guards against the ravages of pollution, cigarette smoke and stress. It helps wounds heal quickly and reduces the risk of cataracts. Vitamin C may assist with the treatment of colds by reducing the severity of symptoms and speeding recovery. It may also assist in the relief of hayfever and allergies.
A safe recommendation during pregnancy is 500mg daily.


Adults - take one tablet a day (with food), or as professionally prescribed.
Not to be used by children under 2 years of age.
Each tablet contains:
Calcium Ascorbate 983mg
equiv. Ascorbic Acid (Vitamin C) 812mg
equiv. Calcium 92mg
Magnesium Ascorbate 145mg
equiv. Ascorbic Acid (Vitamin C) 130mg
equiv. Magnesium 9mg
Potassium Ascorbate 82mg
equiv. Ascorbic Acid (Vitamin C) 58mg
equiv. Potassium 13mg
Bioflavonoids 60mg
Rosehip (Rosa Canina) fruit powder 20mg
Zinc Sulphate Monohydrate 2.75mg
equiv. Zinc 1mg


There are a variety of health concerns that Thompson's products may be able to assist with, such as General Energy and Vitality, Healthy Aging, Stress Management and Children’s Health.

Junior Immunofort is a popular immune boosting formula that children love. It is packed full of vitamins, minerals and nutrients that may help support their overall health. 

Thompson's Grape Seed 19,000 tablets are rich with antioxidants like proanthocyanidins, which may protect cells from rogue free radical damage.

Thompson's is an established market leader in New Zealand, and now proudly exports its products internationally.

Your satisfaction is of paramount importance to us! If we can help in any way please contact us using the details below.

Email: [email protected]

New Zealand Free Phone: 0800 148 148

Other Countries Phone: +64 3 524 8414

Live Chat: Between the hours of 9.30am – 4pm

You can also subscribe to the HealthPost email newsletter for all the latest news, health info and exclusive special offers. Find out more about our guarantee, payment options and delivery times, or view our FAQs page for frequently asked questions and answers.

We also highly recommend reading product reviews. They can be a great way of finding out that little bit extra about products you're interested in.

We publish all helpful customer reviews, including negative reviews - these are genuine!

Customer Reviews

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5 Item(s)

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I swear by taking 1000mg's of Vitam... Review by

I swear by taking 1000mg's of Vitamin C a day. When I feel a cold coming on, I quadruple that and have four tablets spread throughout the day, for the first 3-4 days of a cold (my understanding is you should only take this much vitamin C for a short period of time). I also firmly believe it keeps my MS under far more control than it would be under without it. Great product. :)

I have used Thmpsons Vitamin C for ... Review by

I have used Thmpsons Vitamin C for many years and use it for nipping any sniffles in the bud. Always works for us!!!

I'm really happy to find a vitamin ... Review by

I'm really happy to find a vitamin C supplement that is gentle on the digestive system. I can't eat citrus fruit, kiwifruit or even fresh tomatoes or drink orange juice, as they all irritate my mouth. Ultra C is the one supplement I'd hate to do without, as it has so many benefits.

I love this product. I believe stro... Review by

I love this product. I believe strongly in the ability of Vitamin C to help keep the body well, and help out if you become unwell. This product is great because it has a sustained easy on the body and money well spent!

I so believe in the value in supple... Review by

I so believe in the value in supplementing daily wiht Vit c as our body does not store it. I take up too 4000mg daily 7 days a week and more depending on what else I'm endulging in :)I do not get unwell so Ultra C is well worth it and awesome value! (HEALTHPOST response: great that this is working for you Anne. This is an unusually high dose and we would advise people to always increase or decrease dosages gradually to avoid any potential problems)

5 Item(s)

per page

Product Highlights

  • Advanced Poly-ascorbate Vitamin C Complex with Bioflavonoids



    We Deliver Worldwide

    International orders are welcome and we offer you a choice of either Airmail or Courier delivery to best suit your needs.

    Airmail to all countries is via an untracked service.  All Courier delivery options are tracked, and tracking details will be emailed to you with your order dispatch confirmation.

    The exact delivery cost of your order will be clearly displayed for your approval during the checkout process. You can estimate the delivery cost of the goods in your cart at any stage by using our 'Postage Estimator' on the Shopping Cart Summary page.

    See our Delivery page for more information.

    Japan, Malaysia, Philippines, Singapore, South Korea, Taiwan, Thailand and Vietnam

    Airmail (5-15 working days)
    $5 first kg plus $10 per additional kg

    International Delivery Charges (all prices in NZD)


    See also dedicated site:

    Tracked Airmail (4-8 working days)
    $4.50 per order flat rate (free for orders over $79)

    Priority Courier (3-5 working days)
    $14.90 for up to 3kg, $5 per additional kg

    China including Hong Kong and Macau | 中国地区(包含香港和澳门)

    In the unlikely event you incur import tax on an order with a total value below NZD $200, HealthPost will reimburse you for the tax amount with Reward Points.

    如果您的订单被海关收税, HealthPost将报销您支付的关税(适用于价值在200纽币以下的订单)。
    偿还方式是将关税金额充值到您在HealthPost账户上的reward points里。

    Summer Special: EMS Courier Delivery | 夏日EMS 邮费优惠政策: (3-8 working days)

    Orders less than NZD $158 total: $5 per kg flat rate

    Orders over NZD $158 total and under 5kg in total weight: FREE DELIVERY

    Orders over NZD $158 total and over 5kg in total weight: first 5kg are free then $5 per additional kg

    Courier (3-8 working days)
    $10 first kg plus $5 per additional kg

    Rest of East Asia

    Airmail (5-15 working days)
    $5 first kg plus $10 per additional kg

    Courier (3-8 working days)
    $70 first kg plus $20 per additional kg

    USA, UK & Europe

    Airmail (5-15 working days)
    $10 first kg plus $10 per additional kg

    Courier (3-8 working days)
    $20 first kg plus $5 per additional kg (selected countries – see *)
    Or $70 first kg plus $20 per additional kg

    South Pacific

    Airmail (5-15 working days)
    $10 first kg plus $10 per additional kg

    Courier (3-8 working days)
    $20 first kg plus $5 per additional kg to Cook Islands, Samoa, Tonga and Vanuatu
    Or $70 first kg plus $10 per additional kg

    Rest of World

    Airmail (5-15 working days)
    $20 first kg plus $15 per additional kg

    Courier (3-8 working days)
    $30 first kg plus $10 per additional kg (selected countries – see **)
    Or $70 first kg plus $20 per additional kg

    * $20 first kg delivery to USA, UK, Europe is only available to:

    Austria, Belgium, Canada, Croatia, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Netherlands, Norway, Poland, Portugal, Romania, Slovenia, Spain, Sweden, Switzerland, United Kingdom and USA.

    ** $30 first kg delivery to Rest of World is only available to:

    Brazil, Costa Rica, Ecuador, El Salvador, Mexico and Uruguay

    Customs / Import Regulations

    Customs and import regulations vary widely between countries. Some of the products we sell via this website are prohibited for importation into certain countries. Unfortunately, it's not possible for us to be aware of all of the regulations specific to any given country. Where we are aware of any particular import restrictions, we endeavour to make note of this on the product detail page.

    HealthPost Ltd accept no liability for the refund/replacement of any goods or any costs relating to, or arising from, the importation or confiscation of any goods by your countries Customs Office or other government body. Read more about our Customs / Import Regulations Policy.

  • FREE NZ DELIVERY When You Spend Over NZ$79, Or Just $4.50 Per Order
  • EARN BONUS Reward Points With Every Order learn more

    30 Days Hassle Free Return Service

    Your satisfaction is extremely important to us. Any problems will be addressed in a friendly and efficient manner, with your total satisfaction as our over-riding concern.

    Our Return Policy

    If you have changed your mind about a product and it is in re-saleable condition (unopened, with undamaged packaging) you can return it within 30 days of receipt for a full refund.

    For more info on returns, visit our Guarantee page.

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