Skip to content
DETOX & WELLBEING

Vitamin C Powder 99.99% Pure | Unflavoured Ascorbic Acid | 200g

  • 99.99% pure ascorbic acid — no fillers, binders, excipients, or flavourings — every gram is active Vitamin C
  • Immune function support — directly supports neutrophil, lymphocyte, and NK cell activity at every stage of immune response
  • Collagen synthesis support — essential cofactor for the hydroxylation reactions that give collagen its structural integrity
  • Primary water-soluble antioxidant — scavenges free radicals in plasma and supports regeneration of Vitamin E and the broader antioxidant network
  • Non-haem iron absorption enhancement — converts ferric to ferrous iron at the point of absorption, significantly improving plant-source iron bioavailability
  • Flexible dosing — powder format allows precise dose adjustment from baseline maintenance to therapeutic-range supplementation under professional guidance
  • Cost-effective format — higher active Vitamin C per pound spent than equivalent capsule or tablet products at equivalent purity
  • Unflavoured — mixes cleanly into water, juice, smoothies, or food without affecting flavour
  • 200g tub — approximately 200,000 mg of pure ascorbic acid at a dose of 1,000 mg per day, a two-hundred-day supply
£ 20.00
Buy 2 Gwrt 2 Free
Vegetarian
Product Features & Quality Assurance
  • • 99.99% pure ascorbic acid — pharmaceutical/food grade, no additives of any kind
  • • Unflavoured — mixes into water, juice, smoothies, or food without affecting taste
  • • Powder format — complete dose flexibility from baseline maintenance to therapeutic range
  • • 200g tub — approximately 200,000 mg of pure Vitamin C
  • • Cost-effective — significantly lower cost per gram of active Vitamin C compared to capsule or tablet formats at equivalent purity
  • • No fillers, binders, or excipients — every gram measured is a gram of active ascorbic acid

Vitamin C Powder (99.99%) — Pharmaceutical-Grade Unflavoured Ascorbic Acid for Immune, Collagen, and Antioxidant Support (200g)

Vitamin C Powder (99.99%) from Care and Cure Natraceuticals is pharmaceutical-grade ascorbic acid in unflavoured powder form — delivering pure Vitamin C at 99.99% purity with no additives, fillers, binders, flavourings, or excipients of any kind. Each 200g tub provides approximately 200,000 mg of pure ascorbic acid — a flexible, cost-effective supply that gives you complete control over daily dose without the fixed-amount constraints of capsule or tablet formats. Ascorbic acid is the biologically active form of Vitamin C — the form present in food, the form circulating in plasma, and the form that participates directly in the enzymatic reactions that Vitamin C is required for. At 99.99% purity, this powder is indistinguishable in biological activity from the highest-grade pharmaceutical ascorbic acid available. It dissolves quickly and completely in water, juice, or other beverages, and is entirely unflavoured — adding a clean, mild tartness when dissolved that many users find pleasant rather than unpleasant.
Vitamin C insufficiency — below the plasma saturation level that optimises immune and antioxidant function — is far more common than clinical deficiency. Powder format is particularly well suited to the following:
  • Adults seeking higher daily doses than standard capsules or tablets deliver economically — particularly those targeting 2,000 mg or more per day
  • People with frequent infections, slow recovery from illness, or immune vulnerability who want therapeutic-range Vitamin C supplementation under professional guidance
  • Smokers — who deplete Vitamin C significantly faster than non-smokers and require higher daily intake to maintain equivalent plasma levels
  • Adults with high physical or metabolic demands — athletes, those recovering from surgery or injury, or people under sustained psychological stress, all of whom have elevated Vitamin C requirements
  • Anyone supporting collagen synthesis — for skin health, joint integrity, wound healing, or connective tissue recovery
  • People who prefer powder format for ease of mixing into drinks or food, or who have difficulty swallowing capsules
  • Those seeking the most cost-effective format for consistent long-term Vitamin C supplementation at meaningful doses
Ascorbic acid’s biological activity spans multiple essential physiological systems simultaneously. This is not a nutrient with a single mechanism — it is a cofactor, antioxidant, and enzyme substrate that the body cannot function at full capacity without.   Immune cell function is directly dependent on Vitamin C at every level — Vitamin C is actively transported into immune cells — including neutrophils, lymphocytes, and natural killer cells — to concentrations 50 to 100 times higher than plasma levels. Inside these cells, it supports chemotaxis, phagocytosis, and the oxidative burst that destroys pathogens, while simultaneously protecting the cells themselves from the oxidative damage their antimicrobial activity generates. T-cell proliferation and differentiation, antibody production by B-cells, and interferon synthesis all require adequate intracellular Vitamin C. This is the mechanism behind the consistent association between Vitamin C sufficiency and both reduced infection frequency and faster recovery.   Collagen synthesis cannot proceed without Vitamin C — Vitamin C is the essential cofactor for prolyl hydroxylase and lysyl hydroxylase — the enzymes that hydroxylate proline and lysine residues in procollagen, a modification required for the triple-helix structure that gives mature collagen its tensile strength. Without adequate Vitamin C, collagen molecules cannot form properly, and connective tissue — including skin, blood vessel walls, cartilage, tendons, bone matrix, and the walls of the gastrointestinal tract — progressively weakens. This is the biochemical basis of scurvy at its extreme, and of the subtler connective tissue underperformance that subclinical insufficiency produces.   Vitamin C is the body’s primary water-soluble antioxidant — In plasma and intracellular fluid, Vitamin C is the first line of antioxidant defence — directly scavenging superoxide, hydroxyl radicals, and singlet oxygen before they reach lipid membranes and DNA. After neutralising a free radical, Vitamin C can be regenerated by glutathione and other cellular reducing systems — making it a recyclable antioxidant rather than a single-use sacrificial molecule. This recycling capacity means that adequate Vitamin C status supports the entire antioxidant network, not just its own direct activity — including the regeneration of Vitamin E after lipid-soluble antioxidant reactions.   Iron absorption from plant sources depends on Vitamin C — Non-haem iron — the form found in plant foods including leafy greens, legumes, and fortified cereals — is absorbed significantly less efficiently than haem iron from meat. Vitamin C consumed at the same meal converts non-haem ferric iron (Fe³⁺) to the ferrous form (Fe²⁺) that intestinal transporters preferentially absorb, and forms an iron-ascorbate complex that resists the inhibitory effects of phytates and polyphenols. For vegetarians, vegans, and anyone at risk of iron insufficiency, consistent Vitamin C intake at meals substantially improves iron bioavailability from food.   99.99% purity means no excipients, no fillers, no dose dilution — Standard Vitamin C capsules and tablets contain binders, fillers, anti-caking agents, and coating materials that make up a significant fraction of the tablet weight. At 99.99% purity, this powder is essentially entirely ascorbic acid — every gram you measure is a gram of active Vitamin C. There is no dose uncertainty, no excipient load, and no flavouring that might interact with other supplements or medications. This is the purest, most controllable, and most cost-effective format for serious Vitamin C supplementation.   Powder format enables the flexible dosing that therapeutic Vitamin C requires — The optimal daily dose of Vitamin C varies significantly based on individual circumstances. Baseline plasma saturation in a healthy non-smoking adult requires approximately 200–400 mg per day — achievable through diet plus a modest supplement. During acute infection, physical trauma, or high oxidative stress, requirements increase dramatically — with professional protocols using 1,000 mg to several grams per day in divided doses. Powder format allows you to match your dose to your circumstances without changing products, wasting capsules, or paying premium prices per gram for convenience formats.
99.99% pure ascorbic acid — pharmaceutical/food grade, no additives of any kind
Dosage should be determined by your healthcare professional or qualified nutritionist based on your individual health circumstances. As a general reference, many adults use 500 mg to 2,000 mg per day in divided doses for maintenance and general immune support — but therapeutic protocols may differ significantly. To measure: use a calibrated digital scale or a standardised measuring spoon. One level teaspoon of ascorbic acid powder is approximately 4,000–5,000 mg — significantly more than a daily maintenance dose. A small kitchen scale accurate to 0.1g is the most reliable measuring tool for precise dosing. Dissolve the measured amount in a glass of water or juice. The powder dissolves quickly and produces a mildly tart solution. Take with or after meals to reduce gastric sensitivity. Rinse your mouth with plain water after consuming to protect tooth enamel from prolonged acid contact.
Store in a cool, dry place away from direct sunlight and moisture. Keep out of reach of children. Seal tightly after use to prevent moisture absorption, which can cause clumping. Dosage guidance: Please consult your healthcare professional or nutritionist for appropriate dosage. High-dose Vitamin C (above 2,000 mg per day) may cause loose stools in some individuals — reduce dose if this occurs. People with a history of kidney stones (particularly oxalate stones) should consult their doctor before using high-dose Vitamin C supplementation. Tooth enamel: Dissolve in a full glass of water and rinse mouth with plain water after consuming. Do not brush teeth immediately after consumption. .

FAQs About Vitamin C Powder (99.99%)

Yes. Ascorbic acid is the chemical name for Vitamin C u2014 the same molecule present in food sources of Vitamin C and the same form that circulates in plasma and is used in enzymatic reactions throughout the body. Some Vitamin C supplements use buffered forms such as sodium ascorbate or calcium ascorbate, which are less acidic and may be gentler on the stomach at high doses. Pure ascorbic acid powder is the most concentrated and cost-effective form, providing the same biological activity at a lower cost per gram than buffered alternatives.

Customer Reviews

5.0 6 reviews
✍️ Write a Review
Breanna Colton
17 October 2024

Great for skin health!" “Not only has this Vitamin C boosted my immune system, but I’ve also seen a noticeable improvement in my skin. My complexion looks brighter, and I feel more vibrant. I’m so glad I found this product!

✅ Verified Purchase
Tatum Lovely
17 October 2024

This is by far the most convenient Vitamin C supplement I’ve used. The powder dissolves easily, and there’s no taste, which is great for me. I’ve noticed a significant improvement in my skin and overall health since incorporating it into my routine.

✅ Verified Purchase

4 more reviews — add yours below

Share Your Experience

Your honest review helps other UK customers make the right choice for their health.

Never published

World Wide Delivery

We ship to all over the world every country

Secure Checkout

SSL-encrypted, safe payment processing every time

14+ years of Experience

All over UK, USA, Europe and Asia

UK Registered Company

Registered in England & Wales — trading for 14+ years