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Clinicians Hi-Dose Vit C Powder


  • 300gm

    RRP: AU$50.30

    Save 24% (AU$12.20)

  • 150gm

    RRP: AU$30.40

    Save 25% (AU$7.50)

  • 75gm

    RRP: AU$16.14

    Save 24% (AU$3.94)

Clinicians Hi-Dose Vit C Powder is a potent formulation containing two forms of Vitamin C that may support the immune system in times of stress. Each teaspoonful provides a high 3550mg dose of Sodium ascorabate and Ascorbic acid, buffered forms that are well tolerated and easily absorbed by the digestive tract. 

Hi-Dose Vit C can be taken every 2-3 hours when ills and chills strike to provide acute support to the immune system.  Studies show Vitamin C absorption is greatly increased in individuals when they are unwell before reaching bowel  tolerance and provoking side effects. This is due to increased support required for immune system function. Hi-Dose Vit C is also appropriate for daily use as it supports stress hormone production from the adrenal glands during times of stress. 


Adults: 1 level teaspoon in water or juice 1-2 times daily.  
Immediate Support (for short term adult use only): Day 1-3: Mix 1 level teaspoon in water or juice every 2 to 3 hours during waking hours. Monitor dosage in acccordance with bowel tolerance.
Day 4-7: Mix 2 level teaspoonsful twice or three times daily.  
After Day 7: Return to recommended adult dosage or as directed by your health professional. 


  • This product may cause bowel looseness. 
  • If you are on any medication, please consult with your health professional before taking this product. 
  • If symptoms persist or you have any side effects please contact your health professional.
  • Do not take high doses of Vitamin C if you have a gastric ulcer or ulcerative colitis. 
  • Considered suitable for use during pregnancy and breastfeeding.  

Active ingredients per 5ml level teaspoon: 

Vitamin C (from sodium ascorbate) (equiv. Sodium 372mg) 2850mg
Vitamin C (ascorbic acid) 700mg
Vitamin B2 (riboflavin) 3mg

Also contains: Natural flavourings and Thaumatin


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.

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Customer Reviews

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10 Item(s)

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Awful new taste Review by
  • star

Dislike this new sweeter flavour which lacked the acid balance of the previous product.

It does the trick Review by
  • star

I love the powder form and prefer it to having to swallow capsules or tablets. This one is a bit on the sweet side but because I put it into my unsweetened smoothie it tastes fine. Will definitely continue to use it.

New flavour Review by
  • star

This new formulation is a bit sweeter than the old one, but it's fine, I just diluted it a bit more. Love this product!

Far too sweet Review by
  • star

This was an excellent product- why on earth up the sweetness? Unpalatable now. Will not buy again unless clinicians revert to original formula

So far so good Review by
  • star

With all the average reviews on this from what looks like long time users I thought I’d throw a positive in there from a new user.. I am quite enjoying it and am staying well so far through the winter since having so. I’ve had the odd symptom that I thought I was going to get sick but I’ve stayed well! Also the more water you add the weaker it is to taste but I dont add a lot and I enjoy the taste :)

Far to sweet! Review by
  • star

I've been buying this product for a few years and enjoy it. This new recipie is that sweet my 10 year old daughter can't drink it. We have to use about 1/4 teaspoon and that's more than sweet enough for me.

Sickly sweet Review by
  • star

Struggled to get a glass of this down as I found it incredibly sweet, even my 2 yr old dosnt drink it as readily as other ones we have used in the past.

Far too sweet Review by
  • star

I have been a big fan of Clinicians Hi Dose Vit C but this new formula is horrible. Way too sweet, my kids now won't take it also. I'll be trying a different brand next time.

It needs to be less sweet! Review by
  • star

Our obsession with sweetness shouldn't be encouraged by making vitamins sweet!

It's changed Review by
  • star

I usually have this product and have been using it for more than 6 months. It is in new packaging and it tastes like the product has also changed. It is way to sweet. I will be trying another brand for my next order.

10 Item(s)

per page

Product Highlights

  • Provides high levels of Vitamin C for frequent use to support the body’s defences with winter ills and chills or when the immune system is challenged
  • Vitamin C supports the adrenal glands during times of stress
  • High daily dose of Vitamin C supports wellbeing and antioxidant protection
  • Good value product providing dosing flexibility


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    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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