Nutrition Diagnostics

Bio Vitamin C

$89.80
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Immune Boost

500g | Approx. 5g per serve

High strength vitamin C with bioflavonoids, amino acids, and a standardised green tea extract in a convenient powder for immune and antioxidant support. Provides 2000mg of vitamin C per dose.

Benefits
  • Provides 2000mg of vitamin C per dose.
  • Contains nutrients that help maintain a healthy immune system.
  • Delivers potent antioxidants to assist in protecting the body from the damaging effects of free radicals.
  • Source of lysine, which is required for synthesising collagen, carbohydrate metabolism and producing energy.
  • Source of green tea, standardized to polyphenols.
  • Provides proline, glycine, and citrus bioflavonoids for additional nutritional support.
  • Assists in the healing and repair of skin.
    May reduce the duration of colds when taken regularly.
  • Maintains the health and function of the cardiovascular system.
  • No artificial flavours, colours, sweeteners, or added sugar.
Ingredients
  • Vitamin C (as ascorbic acid) (2g) 2,000mg
  • Lysine (from lysine hydrochloride) 500mg
  • Glycine 750mg
  • Proline 500mg
  • Citrus bioflavonoids extract 250mg
  • Camellia sinensis (green tea) extract equiv. to dry leaf (7.5g) 7,500mg
    • Standardised to contain:
    • Catechins 187.5mg
    • Epigallocatechin 3-0-gallate 100mg
Shipping & Returns

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A High Strength Vitamin C Powder With Extra Immune-Boosting Benefits

With 2000mg per serve — four times the amount found in many standard powders — Bio Vitamin C delivers a generous dose in every scoop. Its unique combination of ingredients have been selected with uptake, absorption and immune support front of mind.

Bio Vitamin C provides 2000mg per serve — four times the amount found in many standard formulas. This higher concentration mirrors with intake levels often explored in nutrition research across areas like immune cell function, antioxidant activity and how the body adapts when demand rises.

Bio Vitamin C goes beyond basic immune support by including antioxidants and amino acids to support healing, protection and recovery. The amino acids support collagen synthesis, tissue repair and the body’s structural integrity. At the same time, powerful antioxidants help neutralise free radicals, support inflammation, and protect cells from damage. Together, they create a multi-layered system that works in concert with vitamin C.

Bio Vitamin C is designed with bioavailability in mind. Synergistic cofactors like citrus bioflavonoids support the uptake and activity of vitamin C in the bloodstream, while amino acids support targeted delivery to tissues in need of repair. Importantly, it's also water soluble, which means it can be absorbed by the body very quickly.

All Natural & Sugar Free

Made From Pure & Powerful Natural Ingredients

Our vitamin C powder is made from 100% natural ingredients without synthetic blends or fillers. These natural compounds work in harmony with your biology, which reflects our holistic approach to health.

Not all vitamin C is created alike. While many generic formulas derive vitamin C from calcium ascorbate, we choose pure ascorbic acid sourced from non-GMO sago palm. It’s a clean, single-source approach with total body health in mind.

Lysine assists in activating vitamin C. As an essential amino acid, it supports collagen formation, tissue healing, and immune defence by fortifying cells and helping inhibit viral replication.

Glycine works with vitamin C by providing the raw material for collagen formation. This supports healing and may assist in strengthening connective tissue. It also supports detoxification, antioxidant defence and nervous system regulation, which are closely related to immune function.

Proline supports repair at the cellular level, helping to strengthen the body’s first line of defence. This structural support may assist healing and reinforces the physical barriers that protect against infection, making proline a natural inclusion in Bio Vitamin C.

Absorption & Protection

Optimised for Synergy & Bioavailablity

Synergistic cofactors enhance the body’s ability to utilise vitamin C, activating broader mechanisms for immune support. Lysine, proline and glycine drive collagen synthesis to strengthen tissue repair and immune defence. Citrus bioflavonoids improve absorption and extend efficacy, while green tea extract delivers EGCG — an antioxidant with clinically proven antiviral and anti-inflammatory effects.

So Much More Than Immune Support

Why Use Bio Vitamin C?

Bio Vitamin C does more than support your immune system — it helps regulate inflammation, enhance detoxification and fuel cellular energy production. By working at the core of your biology, it promotes faster recovery, deeper vitality and lasting wellbeing. It's not just for protection, but for performance.

Immune Strength
Detox Support
Assists Inflammation
Supports Energy Production

FAQS

How do you take Bio Vitamin C?

Bio Vitamin C is an oral powder designed to be mixed with water. To improve taste, we advise mixing with lemon or lime juice. It can also be taken as part of our signature ‘Energy Drink’ — a revitalising blend of Bio Vitamin C, water, lemon juice, lime juice, and apple cider vinegar. This combination supports immune function, helps protect against colds and flu, offers antiviral support, and promotes pH balance by reducing acidity in the body.

What makes Bio Vitamin C superior to other vitamin C powders?

Bio Vitamin C is a high-strength, clinically informed formula delivering 2000mg of vitamin C per serve — four times more than standard vitamin C powders. What sets it apart is the inclusion of synergistic cofactors that enhance absorption, extend its activity in the body and amplify its therapeutic effects. Made entirely from natural ingredients and free from sugar, fillers and artificial flavours, it’s a cleaner, more effective choice — designed to work in harmony with your biology for deeper, longer-lasting benefits.

Why is Bio Vitamin C different in colour to other vitamin c supplements?

Most vitamin C supplements rely on artificial colours and flavours. Bio Vitamin C doesn’t. Its subtle brown hue comes naturally from green tea extract — just one of the antioxidant-rich ingredients in the formula. With Bio Vitamin C, what you see is what you get: a 100% natural, high-performance vitamin C powder.

Immune System Insights

Overall rating: 5.0 / 5 from 9 reviews.

AI Generated Review Summary

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Review highlights

Reviews

Love the combination of Vitamin

"Love the combination of Vitamin C with bioflavonoids, amino acids, and green tea. Works so well in my nutrition game to glow from the inside out! Great to support detoxification and also boost immune function and help aid digestion when taken just before a main meal. Also I love utilising this C powder to help absorb more nutrients from my food."

Trudy P. (5/5)

Very good product that tastes

"Very good product that tastes nice. Highly recommend all of Nutrition Diagnostics products."

Clayton P. (5/5)

I feel confident in knowing

"I feel confident in knowing that the Bio Vitamin C is bioavailable to my body and is free from toxins, to support my general health and wellbeing."

Jessica O. (5/5)

I find this vit c

"I find this vit c drink gives me more energy. Wonderful if you are feeling under the weather, stops sore throats, runny noses in their tracks!"

Julie S. (5/5)

Kaye and I have been

"Kaye and I have been using Bio Vitamin C in a health drink everyday since attending Living Valley Health Farm in 2013. It is made up from the juice of one lemon and lime, six shot glasses of Apple Cider Vinegar, one table spoon of Pickling Salt and six spoonfuls of Vitamin C powder mixed in two litres of filtered water. We each have a glass full every morning. To date, it has helped us fend off cold and flu symptoms and arthritis developing in our joints. I’m sure there are other benefits but most of all it has helped us keep our general health and wellbeing."

Ian H. (5/5)

it's has become a part

"it's has become a part of our daily routine. The kids take it and now they're used to having it like us. we can see the benefits as we don't get sick as people around us."

Lorna B. (5/5)

It’s been great to be

"It’s been great to be able to purchase a Vitamin C supplement that’s very well rounded in terms of benefits to the immune system, gut health and overall energy it provides. And have enjoyed drinking the energy drink daily knowing it’s very supportive to my health."

Dean B. (5/5)

Love the energy drink I

"Love the energy drink I make with Bio Vitamin C. It literally gives me a burst of energy."

Marcia W. (5/5)

vERY GOOD

"vERY GOOD"

Judi M. (5/5)

Q&A