Vitamin C is one of the most researched nutrients in the world, and for good reason. It contributes to multiple aspects of health, including immune function, energy metabolism, collagen formation, mood, and antioxidant protection. Yet despite being so well-known, most vitamin C supplements still provide just one form of it.
The limitation of a single water-soluble form is that its distribution is largely confined to aqueous environments within the body. It does not integrate into lipid-rich structures in the same way as fat-soluble forms such as ascorbyl palmitate. Your body is not just a watery environment; it also contains fatty tissues, cell membranes and other lipid-rich compartments where fat-soluble vitamin C derivatives may have advantages over water-soluble forms. Additionally, higher doses of ascorbic acid are more likely to cause gastrointestinal discomfort in some people; buffered mineral ascorbates are often better tolerated at equivalent doses.
Neutrient Total C was created to solve both problems. By combining five forms of vitamin C, including the only fat-soluble form, with three additional ingredients that amplify its effects and extend its reach, Total C is designed to provide vitamin C support across both aqueous and lipid-rich environments of the body.
This guide explains what the science says about vitamin C, why different forms matter, and how every ingredient in Total C was chosen.
QUICK FACTS
Total C at a glance
What is vitamin C?
Vitamin C is a water-soluble vitamin and one of the most important nutrients in your body, with benefits spanning immunity, skin, energy, mood and cardiovascular health. Your body cannot make it on its own. Unlike most mammals, humans lost the ability to synthesise vitamin C thousands of years ago, which means we depend entirely on what we eat and supplement to maintain our levels.
Chemically, it is a powerful antioxidant, but that single description doesn't come close to capturing what it does. Vitamin C is involved in at least eight specific enzyme-driven reactions in the body. It contributes to the formation of collagen (the protein that holds your body together), the production of neurotransmitters that regulate your mood and energy, the function of your immune system, and the protection of cells throughout the body from oxidative damage.⁸˒¹¹
The EU reference intake for vitamin C is 80mg per day. But many experts and practitioners consider this a floor, not a ceiling, particularly in the face of stress, illness, intense exercise or environmental pollution, all of which may increase vitamin C requirements.⁷˒¹¹
How much do you need?
The official UK reference nutrient intake (RNI) is 40mg per day, and the EU nutrient reference value (NRV) is 80mg. These are the levels needed to prevent deficiency in most people, but many nutritional practitioners consider them conservative, particularly in the face of the factors that increase vitamin C turnover.
| Food source | Approximate collagen (per 100g) | Notes |
|---|---|
| Home-made bone broth (240ml) | ~2.5–5g | Highly variable depending on bones used and cooking time |
| Pork skin | ~3–5g | One of the richest food sources; used in traditional gelatine |
| Beef (raw) | ~2–3g | Rich in Types I and III; higher in connective tissue cuts |
| Chicken skin/cartilage | ~1–4g | Particularly rich in Type II collagen around cartilage |
| Fish (skin-on, cooked) | ~0.5–2g | Marine source of Type I; higher in oily fish |
| Egg whites | ~0.5g | Contains proline, a key precursor amino acid for collagen |
| Red and yellow peppers | High vitamin C | Essential for collagen synthesis — not a direct source |
| Citrus fruits | High vitamin C | Supports collagen production via vitamin C co-factor activity |
| Plant foods | None | Some provide precursor amino acids; no collagen directly |
Smoking significantly increases vitamin C turnover and requirements because tobacco smoke generates oxidative stress that consumes vitamin C.¹⁵ People under chronic stress, recovering from surgery or living with high environmental pollution may have increased vitamin C requirements.⁴˒⁷˒¹¹
Who is most at risk of low vitamin C?
Overt vitamin C deficiency (scurvy) is now rare, but low or suboptimal vitamin C status is more common than many people realise. You might be at risk if you:⁷˒¹¹˒¹⁵˒²¹
- Smoke or are regularly exposed to second-hand smoke
- Are older, particularly if you have a limited diet
- Live with chronic stress or a heavy workload
- Train or exercise intensively on a regular basis
- Have a digestive condition that affects absorption
- Eat a diet high in processed or cooked foods
- Live in a city with high pollution exposure
- Are recovering from surgery, illness or injury
- Drink alcohol regularly
Common signs of low vitamin C status include persistent fatigue, frequent infections, slow wound healing, bleeding gums, bruising easily, rough or dry skin, and mood changes. These symptoms are often subtle and easy to attribute to other causes.
The best food sources of vitamin C
Vitamin C is concentrated in fresh fruits and vegetables. Knowing which high vitamin C foods to include in your diet makes a real difference, though levels can vary considerably with cooking, storage and processing: boiling can destroy more than 50% of the vitamin C in vegetables.
Even with a good diet, getting the higher doses of vitamin C associated with immune support and skin health from food alone is challenging. A 750mg serving would require eating roughly 15 large oranges, which is why a high-quality vitamin C supplement adds practical value alongside a good diet.
Vitamin C Benefits
What is vitamin C good for?
People often ask what vitamin C does and what it is good for. The answer is wide ranging: it contributes to over ten distinct physiological functions, each supported by decades of clinical research.
Why five forms? The Total C difference
Most vitamin C tablets and supplements contain only one form: ascorbic acid. It is absorbed quickly, which is useful, but it has two significant limitations. First, it is acidic, and at higher doses this acidity can irritate the gut lining, causing digestive discomfort and limiting how much of it you can comfortably take.
Second, and more fundamentally, it is water-soluble only, which means it cannot access the fatty environments of the body: cell membranes, the lipid layer of the skin and other lipid-rich structures.
The five-form approach was designed to address both of these limitations. The mineral ascorbates — sodium, magnesium and zinc ascorbate — are buffered forms that deliver the same vitamin C activity as ascorbic acid without the acidity, making them well tolerated at higher doses.
Ascorbyl palmitate is a lipid-soluble form that can incorporate into lipid environments such as cell membranes, potentially increasing vitamin C presence in those compartments compared with water-soluble forms.
On top of this, Total C includes BioPerine® and DHQuercetin, which do not just add their own benefits: they may enhance vitamin C utilisation and complement its antioxidant activity.²˒³˒¹⁰
"I created Total C because I wanted a vitamin C formula that actually worked harder for the body. By including both water-soluble and fat-soluble forms alongside vitamin C, and adding BioPerine® and DHQuercetin to synergistically support vitamin C absorption and effectiveness, Total C was designed to provide broader vitamin C coverage than conventional single-form products."
Jonathan Orchard, Founder — Neutrient™
Six things worth knowing about vitamin C
What makes Neutrient Total C unique?
Total C is built around one principle: comprehensive vitamin C nutrition that reaches every part of the body. Every ingredient was chosen deliberately, and together they deliver something that no single-form supplement can.
The table below summarises the five forms of vitamin C in Total C and the body environments each is suited to.
The five forms of vitamin C
Each form in Total C offers distinct characteristics relating to solubility, tolerability and biological behaviour. L-ascorbic acid is the foundational, rapidly absorbed form. The mineral ascorbates — sodium, magnesium and zinc — are buffered and gentle on the stomach, with magnesium and zinc contributing their own benefits to energy, muscle, immune function and cell protection. Ascorbyl palmitate is fat-soluble, allowing vitamin C activity to reach lipid-rich environments.
Together, these five forms are intended to support vitamin C delivery across both aqueous and lipid-rich environments of the body, from the blood plasma and adrenal glands to cell membranes and the lipid layer of the skin.
DHQuercetin — the synergistic antioxidant
Dihydroquercetin (DHQuercetin), also known as taxifolin, is a bioflavonoid extracted from larch bark with potent antioxidant properties that may help support the body's natural antioxidant defences and contribute to the recycling of vitamin C. Research suggests DHQuercetin has favourable bioavailability compared with many traditional quercetin forms.²˒⁹
When combined with vitamin C, the two compounds appear to work synergistically. Experimental research suggests DHQuercetin may help regenerate oxidised vitamin C, potentially extending its antioxidant activity. DHQuercetin also contributes independently to antioxidant defence and has demonstrated anti-inflammatory activity in experimental and preclinical studies, with emerging research into its role in supporting immune function and helping to stabilise mast cells involved in histamine responses.²˒⁹
BioPerine® — for improved absorption
BioPerine® is a patented, standardised extract of black pepper containing a minimum of 95% piperine. It is one of the most extensively studied bioavailability enhancers used in nutritional supplementation. Research suggests piperine can enhance nutrient absorption through several mechanisms, including stimulating digestive enzyme activity, influencing intestinal transport processes, and supporting the uptake of certain vitamins and nutrients.³˒¹⁰
Clinical research has demonstrated that combining piperine with vitamin C can significantly increase vitamin C bioavailability. In one study, the addition of piperine increased vitamin C absorption by 52%, indicating that more of each dose was available for utilisation by the body. This means each 750mg serving of Total C is formulated not only to provide vitamin C, but also to support efficient absorption and utilisation.³˒¹⁰
D-Ribose — the energy co-factor
D-Ribose is a naturally occurring five-carbon sugar that forms part of the structure of ATP (adenosine triphosphate), the molecule cells use to store and transfer energy. It is also an essential structural component of DNA and RNA. Unlike glucose, which serves primarily as a fuel source, D-ribose provides a building block required for the synthesis of ATP and other energy-related compounds.
The inclusion of D-Ribose reflects Total C's broader focus on supporting active, busy lifestyles where energy metabolism is an important aspect of overall wellbeing. Vitamin C contributes to normal energy metabolism and supports the synthesis of carnitine, complementing the formula's immune-supporting role while supporting normal cellular energy processes.
Clean formula — no unnecessary additives
Total C contains no unnecessary fillers, binders, colourings or excipients. It is suitable for vegans, gluten-free and dairy-free, and compatible with most dietary approaches. Each bottle provides 120 capsules — a four-month supply at the recommended serving.
Who is Total C for?
Total C was designed for anyone who wants to move beyond basic vitamin C supplementation to something genuinely comprehensive. It is particularly well suited for:
- Active individuals and athletes who want immune and antioxidant support during training and recovery.⁷˒¹⁵
- Those focused on skin health, who want to support collagen synthesis and protect skin cells from oxidative damage
- City dwellers and frequent travellers exposed to pollution, stress and disrupted routines that may increase vitamin C turnover and requirements.⁷˒¹¹
- Older adults seeking comprehensive support for collagen, immune function, energy and cardiovascular health
- Those who find plain ascorbic acid hard on their stomach; the buffered mineral ascorbates make higher doses comfortable
- Vegetarians and vegans who rely on vitamin C's iron absorption benefit and want a formula without animal derivatives
- Anyone recovering from illness, infection or surgery, where vitamin C requirements may increase.⁴˒⁷
- People who want an upgrade from standard vitamin C tablets to a formula designed to provide broader support than single-form products
How to take Total C
The recommended serving is 1 capsule per day. Each bottle of 120 capsules provides a four-month supply, delivering 750mg of bioactive vitamin C per serving. Total C can be taken at any time that suits your routine.
With food
Take your capsule with a meal to support comfortable digestion and steady absorption throughout the day
Morning
Many people prefer to take their vitamin C in the morning as part of a daily routine that is easy to remember
With an iron-rich meal
Taking vitamin C alongside plant-based, iron-rich foods can help enhance the absorption of non-haem iron
During training periods
Intense or prolonged exercise can increase vitamin C turnover, so daily intake may be especially valuable during periods of heavy training
Anytime
One easy-to-swallow capsule, taken whenever suits you. The buffered mineral ascorbates make Total C comfortable to take even on an empty stomach
How safe is vitamin C?
Vitamin C has an excellent safety profile at a wide range of doses. The EU tolerable upper intake level is 1,000mg per day for adults, and Total C provides 750mg per serving, well within this guideline.
At higher doses, particularly of plain ascorbic acid, some people experience loose stools or mild digestive discomfort. The buffered forms in Total C may reduce the likelihood of digestive discomfort compared with equivalent doses of plain ascorbic acid, making it more comfortable than most single-form supplements at equivalent doses.
During illness, elevated stress or heavy exercise, the body's tolerance for vitamin C increases significantly, and higher intakes are often well tolerated, although individual tolerance varies.
Disclaimer
Safe for long-term daily use at the recommended serving of 1 capsule per day. Suitable for adults from 18 years. Not recommended during pregnancy or breastfeeding without medical advice. If you take blood-thinning medications or have kidney disease, consult your doctor before supplementing. Food supplements are not a substitute for a varied and balanced diet and a healthy lifestyle.
References
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3. Fernandez-Lazaro D et al. Iron and Physical Activity: Bioavailability Enhancers, Properties of Black Pepper (Bioperine®). Nutrients. 2020;12(6):1886.
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10. BioPerine.com. Black Pepper Extract. A Natural Bioavailability Enhancer. bioperine.com.
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12. Mohn ES et al. Evidence of Drug-Nutrient Interactions with Chronic Use of Commonly Prescribed Medications. Pharmaceutics. 2018;10(1):36.
13. Figueroa-Mendez R, Rivas-Arancibia S. Vitamin C in Health and Disease 2015.
14. Motta V et al. Effects of Oral Vitamin C Supplementation on Anxiety in Students. Pak J Biol Sci. 2012;15(23):1030-1034.
15. Office of Dietary Supplements, NIH. Vitamin C: Health Professionals Fact Sheet. ods.od.nih.gov.
16. Choi Y et al. Effect of different cooking methods on the content of vitamins and true retention in selected vegetables. Food Sci Biotechnol. 2018;27(2):333-342.
17. Pullar JM, Carr AC, Vissers MCM. The Roles of Vitamin C in Skin Health. Nutrients. 2017;9(8):866.
18. Tada A, Miura H. The Relationship between Vitamin C and Periodontal Diseases. J Clin Med. 2019;8(10):1705.
19. Telang PS. Vitamin C in dermatology. Indian Dermatol Online J. 2013;4(2):143-146.
20. Padayatty SJ, Levine M. Vitamin C physiology 2016.
21. Faizallah R et al. Alcohol enhances vitamin C excretion in the urine. Alcohol Alcohol. 1986;21:81.
