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Clinicians Hi-Dose Vit C Powder


  • 75gm

    RRP: $15.40

    You save 31% ($4.70)

  • 150gm

    RRP: $29.10

    You save 31% ($9.10)

  • 300gm

    RRP: $48.30

    You save 35% ($16.80)

Clinicians Hi-Dose Vit C has been developed to support the body's defences against winter ills and chills. It contains both sodium ascorbate and ascorbic acid and may support and enhance the immune system during viral infections.

Studies indicate that frequent high dosing of Vitamin C can significantly shorten the recovery period following a viral infection. This appears to be true for both oral and intravenous Vitamin C administration, these high-dosing regimes may also reduce the convalescence period of illness allowing an individual to recover quicker.


  • Clinicians Hi-Dose Vit C has been designed to support the body’s defenses against winter ills and chills
  • A specialised research-based buffered formulation containing 2 forms of vitamin C, (sodium ascorbate and ascorbic acid) that may support and enhance immune function during times of stress
  • Studies indicate that frequent high dosing with vitamin C can significantly shorten the recovery period following immune stress
  • Vitamin C may be depleted from the body during immune, physical and emotional stress, so more needs to be consumed at these times
  • Vitamin C is also required for hormone and neurotransmitter production
  • Vitamin C is an antioxidant vitamin that protects our cells from free radical damage

Vitamins are supplementary to and not a replacement for a balanced diet.

Always read the label and use as directed.



Adult Dosage: Take 1 level teaspoonful in water or juice 1-2 times daily.

Enhanced Dosage (for short term adult use only):

Day 1-3: Take 1 level teaspoonful in water or juice every 2 to 3 hours during waking hours*.

Day 4-7: Take 2 level teaspoonsful twice or three times daily.

After Day 7: Return to recommended adult dosage or as directed by your health professional.

*Monitor dosage in accordance with bowel tolerance.


Gastric ulcer or Ulcerative colitis: Vitamin C is generally well-tolerated, however people with gastric sensitivities are advised to take this product with food or to lower the dose if bowel discomfort occurs.

Pregnancy & Breastfeeding: Regarded as safe to take during these times.

High dosing of Vitamin C to bowel tolerance should be done under supervision of a healthcare practitioner during these times.

Each level 5ml teaspoon contains:

  • Vitamin C (from sodium ascorbate) 2850mg
  • Vitamin C (ascorbic acid) 700mg
  • Vitamin B2 (riboflavin) 3mg

Also contains natural flavourings and stevia.

No added: gluten, dairy, yeast, sugar, artificial colours or preservatives.


Two pharmacists who saw that current modern pharmaceuticals weren’t providing complete care for their patients, decided to develop the Clinicians range. By investigating the results that conventional medicine had on the body, they created a range of research-based formulations to provide important nutrient replacement for the body.

The Clinicians range may help with a variety of health concerns like their ‘Stress, Sleep and Mood’ range and ‘Ills, Chills and Allergies’ range that includes Allerstop developed for effective allergen support. One of their best sellers Rejuvenate with Hyaluronic Acid is a science-based formula for rejuvenation of skin elasticity, stronger nails and shiny hair.

By visiting our brands page, you can shop by your preferred brand.

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]

Australia Free Phone: 1800 040 156

Other Countries Phone: +64 3 265 9758

Live Chat: Between the hours of 7am – 3pm AEST

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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Items 1 to 10 of 57 total

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Potent Review by
  • star

Excellent product .....always buy this Vit C ..its potent and easy to absorb ...

Excellent Review by
  • star

My son took it for a day and his runny nose was almost cleared.

cliniciicans hi dose vit c powder Review by
  • star

Great product easy to add to water, tastes good,so easy to take daily.

Worth it. Review by
  • star

Definitely worth it. The taste is not horrible and it comes with its own spoon which is very convenient

Great tasting boost Review by
  • star

Take this regularly every day, pleasant flavour and good dosage plus dissolved in a glass of water also helps fluid intake. Easy to take all year round.

Power boost for the immune system! Review by
  • star

What a gem this product is - help fight all those winter coughs and colds and boost
the immune system to get over them quicker. Kids love the taste too and it is gentle
on the digestive system. A winter must!

Recommend this product Review by
  • star

A beneficial product that works well for me, and a good form of vit 'C' to have on hand if and when required . . . .

healing product Review by
  • star

This product was recommended to me by my doctor to help with haemorrhoids. I was reluctant to take it because of the precautions listed on bottle and my sensitive gut. I am pleased to report after months of living with piles, using this product helped clear it up in less than a week! I had no trouble with my gut, but i did choose to lesson the dose till i got used to it.

great product! Review by
  • star

Bought this for daughter who cant take pills- she took recently during a cold that knocked everyone else for 3 weeks. She was over it in 7 days! Pleasant and easy to take in water- no need for juice!!

Great immune support Review by
  • star

I work with 5 year olds and have started taking this product recently - I am sure it has helped to get me through stressful periods without getting sick. Will definitely continue to take it throughout winter.

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Product Highlights


  • TRUSTED NZ SUPPLIER To Australia for over 20 years
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