Questions, answered.

4VIA is a UK daily nutrition routine of two formulas: Intelligent Systems Nutrition™, a 15 g powder drink in the morning, and Rest Phase™, two capsules at night. Together they contain 120+ different ingredients, formulated across the 12 Systems of Healthy Ageing, for the health you notice every day and the longevity built in the background.

Systems Longevity is daily nutrition formulated across all of the body's systems, not one molecule or one pathway. It's based on research showing that ageing is measurable from our 20s and 30s, and happens across the body's organ systems at once.¹

No. Greens are one part of the morning formula, alongside 24 vitamins and minerals, live cultures, fibres, digestive enzymes, amino acids, functional mushrooms and bioactives such as NR and CoQ10. And there's a separate night formula, Rest Phase™.

4VIA is pronounced "for via" and means "for life": for the life you live today, and the life you want to live later.

4VIA was founded by Dr Farhaan Essoof, an honours medical graduate of the National University of Ireland and former Clinical Innovation Lead at University College Dublin. He spent three years researching and developing the formulas. Read the story

Adults who want one routine for their daily health and for ageing well, instead of a cupboard of separate supplements. It isn't suitable during pregnancy or breastfeeding, or for under-18s.

They're 4VIA's framework for formulating across the whole body: Energy & Metabolism, Immune Health, Brain, Nerves & Vision, Heart Health, Hormonal Regulation, Gut & Digestion, Blood Health, Thyroid & Blood Glucose, Muscle Function, Bones & Cartilage, Skin, Hair & Nails, and Cellular Function & Protection. Each is linked to authorised claims for the vitamins and minerals in the formula. See the map

It's how Intelligent Systems Nutrition™ is organised: six formulation groups (Vitamins & Minerals, Phytonutrient & Botanical Matrix, Microbiome & Digestive Core, Structural & Recovery Foundations, Neuroendocrine Network, and Cellular Metabolism & Renewal Platform), designed to complement each other rather than overlap.

Intelligent Systems Nutrition™ contains 111 ingredients, and Rest Phase™ contains 12. Every ingredient and dose is listed on our Ingredients page and on the nutrition label. See every ingredient

Because a routine that only looks after the day leaves half of it out. Intelligent Systems Nutrition™ is the morning formula; Rest Phase™ completes the routine at night with magnesium, zinc and copper bisglycinates, a seven-botanical blend, PQQ and myo-inositol. You can take Intelligent Systems Nutrition™ on its own, but the routine is designed as Morning + Night.

Some ingredients are at the amount used in published research†, for example saffron 30 mg, astaxanthin 4 mg and PQQ 10 mg. Others are deliberately lower than single-ingredient studies, because 4VIA is made to be taken every day, for years, alongside everything else in the formula. Every vitamin and mineral stays within established safe upper levels.

Because many studies test one ingredient at a high dose for a few weeks. 4VIA is one formula for long-term daily use, so doses are set by each ingredient's role, how ingredients work together, total daily intake, tolerability and taste. A 15 g scoop isn't 111 separate supplements compressed into one.

No, and we won't claim it is. 4VIA has not been tested in a clinical trial as a finished product. What we can say: the vitamins and minerals carry authorised health claims, some doses match amounts used in published research†, and every batch is tested for quality and safety. A finished-product study is part of our long-term planning.

Because the form matters. We use calcium L-methylfolate instead of folic acid, P-5-P for B6, MK-7 for K2, two forms of B12 instead of cyanocobalamin, and magnesium bisglycinate instead of magnesium oxide. NR and CoQ10 are microencapsulated to protect them in the powder.

4VIA doesn't rely on one NAD+ ingredient. It's built as an NAD+ network: 125 mg of nicotinamide riboside (NR), a form of vitamin B3 the body uses to make NAD+, together with niacin (another form of B3), the B-vitamin cofactors B2 and B6, CoQ10 (50 mg), trans-resveratrol and PQQ (10 mg). Niacin contributes to normal energy-yielding metabolism.¹ The NR and CoQ10 are microencapsulated to protect them in the powder.*

The network sits inside 4VIA's wider cellular group, alongside spermidine (5 mg), astaxanthin (4 mg) and quercetin, so cellular cover comes from many ingredients in one formula rather than a megadose of one.*

On the dose: 125 mg of NR is within the range used in published research†, where human studies have used doses such as 100, 300 and 1,000 mg a day, and below the 300 mg daily maximum authorised for NR in food supplements in Great Britain. We haven't measured NAD+ levels in people taking 4VIA, so we don't claim it raises them.

Because NR (as nicotinamide riboside chloride) is authorised as a novel food for food supplements in Great Britain, and NMN is not currently authorised as a novel food in Great Britain, so it can't be sold as a food supplement in Great Britain.

Yes. Intelligent Systems Nutrition™ contains 10 billion CFU from five cultures (Bacillus coagulans, Bacillus subtilis, Bifidobacterium lactis, Lacticaseibacillus rhamnosus and Lactobacillus acidophilus), counted at the end of shelf life, not the day it's made.

Only a trace. Guarana is included for its polyphenols, not as a stimulant, and the caffeine it brings is at trace level.

No to both. Rest Phase™ is a melatonin-free night food supplement. Magnesium contributes to the reduction of tiredness and fatigueᴿ¹ and to the normal functioning of the nervous systemᴿ².

Iron needs vary more than almost any other nutrient. Women who have periods need almost twice as much as men (UK reference intake: 14.8 mg a day for women aged 19–50, 8.7 mg for men), while for many others extra iron isn't needed and too much isn't safe. So we leave iron out and suggest checking your levels with a blood test before supplementing. Vitamin C in 4VIA increases iron absorption from food.⁷

Creatine works at about 3–5 g a day, which is too much to fit into a 15 g scoop alongside everything else. We do recommend it as part of a full daily routine, and it's easy to buy on its own. See: A full-day routine, and where creatine fits

Yes. Intelligent Systems Nutrition™ contains DHA omega-3 from microalgae, so it's vegan with no fishy taste.

The current formulas are Intelligent Systems Nutrition™ and Rest Phase™ as listed on the label. If we ever update a formula, we'll say what changed and why on this page and in the Journal.

In the morning, mix one scoop (15 g) of Intelligent Systems Nutrition™ with 300–400 ml of cold water and shake. In the night, take two Rest Phase™ capsules, about an hour before bed.

Intelligent Systems Nutrition™ early in the morning, before or with breakfast. Rest Phase™ at night. Consistency matters more than the exact time.

Berry-forward: açaí, blueberry and pineapple, with cocoa and vanilla underneath. It's a deep berry colour, not green, smooth rather than gritty, and not too sweet.

Yes. It works in a smoothie, or with oats or yoghurt. Avoid hot drinks, because heat can affect the live cultures and some vitamins. Drink it within about 5 hours of mixing.

No. Don't exceed one 15 g scoop of Intelligent Systems Nutrition™ and two Rest Phase™ capsules a day.

Start with half a scoop for the first few days, then move to a full scoop. If your digestion is sensitive, build up gradually.

Just carry on the next day. Don't take a double serving to catch up.

Yes. Many people have it before or with breakfast and coffee. There's no need to space them out.

Treat it as part of your eating window. It contains 17 kcal and nutrients, so it fits best when you break your fast or with your first meal.

17 kcal per 15 g scoop of Intelligent Systems Nutrition™, with 0.5 g of sugars.

Often, but check for overlap. 4VIA already provides 24 vitamins and minerals, including 50 µg of vitamin D3, zinc and magnesium, so you may not need separate versions. If you take extra vitamin D, iron or other high-dose supplements, check the label totals or ask your doctor or pharmacist.

Everyone is different. Many people enjoy the routine from the first day; daily health and longevity are built over months of consistency, which is why the 3-Month Supply comes with a 90-day guarantee.

Somewhere cool and dry, away from sunlight. Reseal the pouch after use, don't freeze it, and use within 60 days of opening.

It can, slightly. 4VIA is made with many fruits, vegetables and botanical extracts, which vary naturally from harvest to harvest, so there can be minor differences despite our taste-masking. The formula and doses don't change.

4VIA is formulated by a medical doctor for long-term daily use, with every vitamin and mineral within established safe upper levels. Check with your doctor first if you take medication, are under medical care, or are pregnant or breastfeeding.

Speak to your doctor first if you take any medication or have a medical condition. This is especially important for anticoagulants such as warfarin (Intelligent Systems Nutrition™ contains vitamin K2), antidepressants including SSRIs, additional vitamin D, or treatment that requires monitoring potassium or iodine.

No. 4VIA isn't suitable during pregnancy or breastfeeding.

No. 4VIA is for adults only, not for under-18s.

Yes. Both formulas are suitable for vegans. Our DHA omega-3 comes from microalgae, not fish.

Intelligent Systems Nutrition™ contains wheat (wheat germ extract), and every batch is tested for gluten, below 20 mg/kg. If you have coeliac disease or a wheat allergy, speak to your doctor first.

Intelligent Systems Nutrition™ contains wheat (wheat germ extract) and soy-derived ingredients. It's made without dairy or peanuts, every batch is tested for peanut and soy, and no other major allergens are handled in the facility.

No added sugar. It's sweetened with stevia (steviol glycosides, including Reb M), with no artificial sweeteners, colours or preservatives.

Yes. 4VIA uses halal ingredients and is made in a halal-certified facility.

All the botanical ingredients in 4VIA are certified organic, with supplier documentation kept on file.

Yes. Every ingredient arrives with its own certificate of analysis, and every batch is tested for ingredient concentrations, microbiology, heavy metals, pesticide residues, mycotoxins and allergens. The results are published on our Standards page.

Not yet. Every batch is tested and every ingredient is supplied with its own certificate of analysis, and the batch results are published on our Standards page.

Yes. Lead, arsenic, cadmium and mercury, each against a limit of 1.0 mg/kg. The latest batch measured below 1.0 mg/kg for all four.

The batch report shows the tests run on the finished batch and the results: heavy metals, mycotoxins, PAHs, pesticides, microbiology and gluten. Ingredient certificates are kept on file and available on request. See the lab report

Not at the moment, though it's part of our future plans. If you compete in tested sport, check with your governing body before use.

4VIA is a UK brand, developed in Poland and made in GMP-certified facilities.

Buy only from 4viahealth.com, our only official store. Every pouch has a batch number and a safety seal; don't use it if the seal is broken or missing.

A subscription delivers automatically, so the routine never runs out, with the best price and welcome gifts. A one-time purchase is a single order.

The 1-Month Supply (Intelligent Systems Nutrition™ + Rest Phase™ every 4 weeks) or the 3-Month Supply (three of each every 12 weeks). The 3-Month Supply includes the Tritan shaker bottle and a utility tote, and a 90-day money-back guarantee.

Yes. Manage it from your account: pause, change your plan or delivery date, or cancel. To avoid being charged for your next renewal, cancel at least 48 hours before your next billing date. Full terms are in our Refund Policy.

Yes, on your first purchase. The 1-Month Supply has a 30-day money-back guarantee, and the 3-Month Supply 90 days, both counted from the day your first order is delivered. It's one refund per customer or household, and it doesn't cover renewal orders. If you cancel the 3-Month Supply early, unused and unopened products are returned. Full terms are in our Refund Policy.

UK delivery is free with Royal Mail (1–3 working days), or choose DPD next-day delivery (price shown at checkout). Orders are dispatched Monday to Friday, within 24 hours, and you'll get a tracking link by email as soon as your order is fulfilled.

Not at the moment. We're working hard to bring 4VIA to more countries.

Under UK law, the 14-day right to cancel doesn't apply to sealed supplements once they're opened, unless they're faulty, damaged or not as described. Our money-back guarantee still covers your first purchase. Email care@4viahealth.com before sending anything back.

Email care@4viahealth.com within 7 days of delivery with your order number, a short description and photos of the product and packaging, and we'll put it right.

From your account, under your subscription. Or email care@4viahealth.com and we'll help.

Email care@4viahealth.com or use the form on our Contact page. We reply within 24 hours.

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