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Cell Protection

Cell protection is the shorthand for a group of nutrients and plant compounds bought for the same broad reason: the body is under constant oxidative pressure, and a handful of vitamins and minerals have an authorised role in protecting cells from it. Vitamin E, selenium, vitamin C, zinc, copper, manganese and riboflavin all contribute to the protection of cells from oxidative stress. That claim is permitted because the evidence behind it was assessed and accepted – it is worth knowing which nutrients carry it and which do not.

Alongside them sit the compounds that get talked about far more than they are regulated: glutathione, quercetin, alpha lipoic acid, resveratrol, astaxanthin, grape seed and pine bark extract, sulforaphane, NAC, NMN and NAD precursors, and Salvestrol. None of these carry an authorised health claim in the UK, so you will not find one made here. They are included because customers ask for them by name and buy them knowingly, not because we can tell you what they will do.

Everything on this page is sold by Quickvit with free UK delivery over £40. If you want to talk something through before ordering, call us on 01323 928523.

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SolgarUbiquinol 100mg (Reduced CoQ10) 50 Softgels

Original price £62.68 - Original price £62.68
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Solgar Coenzyme Q10 plays a vital role in cellular health and energy production. Solgar Ubiquinol is the reduced, antioxidant form of Coenzyme Q10 ...

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SolgarAstaxanthin 5mg 30 Softgels

Original price £20.00 - Original price £20.00
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Astaxanthin is a naturally occurring carotenoid derived from marine fish and algae. Astaxanthin promotes antioxidant health, protecting the body's ...

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SolgarQuercetin Complex 50 Vcaps

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Quercetin is a non-citrus bioflavonoid that works in synergy with Vitamin C. Bioflavonoids are naturally present in fruit, vegetables and herbs, an...

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SolgarSelenium 200ug (Yeast Free) 50 Tablets

Original price £12.95 - Original price £12.95
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Selenium is an essential trace mineral that works synergistically with Vitamin E. As a constituent of glutathione peroxidase, an antioxidant enzyme...

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SolgarVitamin E 134mg (200iu) 50 Softgels

Original price £12.95 - Original price £12.95
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Solgar Vitamin E 134mg (200iu) Softgel capsules are natural source of d-alpha tocopherol plus mixed tocopherols. Vitamin E is the major fat soluble...

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SolgarMaximised L-Glutathione 250mg 60 Vcaps

Original price £59.50 - Original price £59.50
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Solgar L-Glutathione is a natural sulfur-bearing peptide formed from the linking of three amino acids: glutamic acid, cysteine and glycine. It acts...

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Pharma NordBio-Pycnogenol 40mg 30 Tablets

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Pycnogenol is pine bark extract that has potent antioxidant qualities.

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True VedaOrganic Pomegranate 60 capsules

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True Veda Organic Pomegranate capsules are rich in Punicalagins, potent antioxidants that are three times more powerful than those found in red win...

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Higher NatureRed Sterol Complex 90 Tablets

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'- Maintaining cholesterol in the normal range is important for cardiovascular health - Provides red yeast rice traditionally eaten and made in...

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Higher NatureQuercetin & Bromelain 60 Capsules

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- A great synergistic combination of nutrients - With vitamin C which protects the cells from oxidative stress - Quercetin is a plant-derived...

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ViridianAlpha Lipoic Acid 200mg 30 Capsules

Original price £15.20
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Viridian Alpha Lipoic Acid delivers 200mg of alpha lipoic acid per capsule, a compound found naturally in the body and in every cell, in a base of ...

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SolgarVitamin E 671mg (1000iu) 100 Softgels

Original price £60.50 - Original price £60.50
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Solgar Vitamin E 671mg (1000iu) Softgel capsules are a natural source of d-alpha tocopherol plus mixed tocopherols. Vitamin E is the major fat solu...

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BalancedOrganic Ceylon Cinnamon 36g

Original price £4.49 - Original price £4.49
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As a provider of qualities, antioxidant, and antimicrobial effects, Ceylon Cinnamon is a great supplement for immune system support as well as redu...

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Source NaturalsWellness Formula 45 Tablets

Original price £15.99 - Original price £15.99
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This formula combines a potent dose of vitamin C with more than 30 vital vitamins, minerals, and proven herbs to strengthen immune defense. It aids...

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New LeafQuercetin 500mg 180 Capsules

Original price £23.99 - Original price £23.99
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New Leaf's Quercetin 500mg supplement delivers a potent dose of this powerful bioflavonoid in each vegan capsule. Sourced from Sophora Japonica ext...

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ViridianAstaxanthin 30 Capsules

Original price £24.65
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Discover the exceptional benefits of Viridian Astaxanthin, a premium dietary supplement designed to support your overall health and well-being. Eac...

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LambertsPycnogenol 40Mg 60 Capsules

Original price £35.50 - Original price £35.50
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Pycnogenol is not a generic ingredient. It is a patented, standardised extract of French maritime pine bark, and products are only allowed to use t...

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Patrick HolfordOptimum Nutrition Formula 60 Tablets

Original price £12.99 - Original price £12.99
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A potent daily supplementation regime providing optimum amounts of vitamins, minerals, antioxidants and essential fatty acids to support health and...

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BioTech Life SciencesNMN 80 grams Ultra Pure >99.5% 320 Servings

Original price £79.99 - Original price £79.99
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Experience the benefits of our ultra-pure Nicotinamide Mononucleotide (NMN), a powerful NAD+ precursor designed to support healthy ageing and enhan...

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LambertsNAC (N-Acetyl Cysteine) 300mg 90 Capsules

Original price £17.95 - Original price £17.95
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Lamberts NAC delivers 300mg of N-acetyl cysteine, an amino acid derivative, per capsule — a lower-dose alternative to the standard 600mg NAC formul...

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Hunter and GatherKidney 90 Capsules

Original price £30.99 - Original price £30.99
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Hunter and Gather Kidney Support delivers targeted nutritional assistance for renal function through a scientifically-formulated capsule blend. Thi...

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HealthAidBlack Seed 60 Capsules

Original price £21.99 - Original price £21.99
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HealthAid Black Seed Capsules: Premium Quality for Optimal Wellness Product Overview Introducing HealthAid Black Seed Capsules, a premium dietary...

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Well ActuallyReduced L-Glutathione (500mg) 150ml

Original price £29.99 - Original price £29.99
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Glutathione is further supported with Selenium and Vitamin B6 in its active form (p5p). Selenium is a cofactor to Glutathione, i.e. it is needed to...

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HealthAidVitamin E 1000iu Natural 100 Capsules

Original price £47.99 - Original price £47.99
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Vitamin E functions as a natural powerful antioxidant, which helps combat free radical damage to the body. It is also used to support vital nutrien...

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Natures AidUbiquinol Reduced CoQ10 50mg 30 Softgels

Original price £19.99 - Original price £19.99
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Statins deplete stores of CoQ10 in the body. Statin Users - the group of drugs collectively known as statins are well known to deplete levels of C...

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Original price £19.99 - Original price £19.99
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Natures AidQuercetin Formula 90 Capsules

Original price £16.99 - Original price £16.99
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Natures Aid Quercetin Formula is an advanced formula containing Ester-C®, Highly absorbable, non-acidic Vitamin C.

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HealthAidProstavital Capsules 90 Capsules

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HealthAid Prostavital provides key Vitamins, Minerals, Micro elements, Antioxidants and plant extracts specially formulated for supporting optimum ...

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NutriburstDaily Nutrition Green Vita 60 Gummies

Original price £7.99
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Nutriburst Daily Nutrition Green Vita Gummies - 60 Count Comprehensive Daily Nutrition Elevate your daily wellness routine with Nutriburst Daily ...

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KIKI HealthSpermidine 60 Capsules

Original price £39.99 - Original price £39.99
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KIKI Health Spermidine - 60 Capsules Product Overview Discover the benefits of KIKI Health Spermidine, a premium dietary supplement designed to s...

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KIKI HealthResveratrol 60 Capsules

Original price £34.99 - Original price £34.99
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KIKI Health Resveratrol - 60 Capsules Premium Quality Resveratrol Supplement Elevate your wellness routine with KIKI Health Resveratrol, a high-q...

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Only a short list of nutrients may legally be described as protecting cells from oxidative stress: vitamin E, vitamin C, selenium, zinc, copper, manganese and riboflavin. If a product is built on one of those, the claim on the box is authorised and means something specific.

Everything else in this category – glutathione, quercetin, resveratrol, NMN, sulforaphane, Salvestrol – sells on reputation rather than an approved claim. That is not a criticism of them, but it does mean the packaging has to stay quiet, and a product making bolder promises is the one to be sceptical about.

Selenium is the one people most often get wrong. It carries an authorised role in cell protection at a modest intake, and UK soils are low in it, so a supplement is reasonable. But the gap between a useful amount and too much is narrower than with most minerals, which is why reputable products sit around 100–200mcg rather than going higher.

Yeast-bound selenium and sodium selenite are the two common forms. If you already take a multivitamin, check what is in it before adding a standalone – the totals add up quickly.

Glutathione is the body's own compound, and swallowing it is not straightforward – standard capsules are broken down before much arrives. This is why liposomal and reduced forms exist and cost more, and Well Actually, Coyne and Balanced all sell them for that reason.

NAC takes the other route: it supplies a building block rather than the finished compound. Both approaches are legitimate and neither is proven superior, so buy on format and price rather than on which sounds more advanced.

NMN and nicotinamide riboside are precursors – raw material the body converts. The research is genuinely active but it is early, most of it is not in humans, and no health claim is authorised in the UK. Anyone telling you otherwise is ahead of the evidence.

Purity and dose are where these products differ. BioTech Life Sciences state a purity figure and sell by the gram; KIKI Health, Phytoceutics and Feel Supreme sell capsules, sometimes paired with resveratrol or astaxanthin. Compare cost per gram rather than cost per bottle, because bottle sizes vary enormously.

Cell protection: common questions

Which nutrients here have an approved claim?

Vitamin E, vitamin C, selenium, zinc, copper, manganese and riboflavin contribute to the protection of cells from oxidative stress. The plant compounds and NMN products do not carry an authorised claim.

Is there any point taking more than one of these?

Usually not. Most people are better served by one well-chosen product than by stacking several. Check your multivitamin first – it may already cover the selenium, zinc and vitamin E.

Why is liposomal glutathione so much dearer?

Plain glutathione is largely broken down during digestion. Liposomal and reduced forms are made to survive that, which costs more to produce. Whether the difference justifies the price is a judgement call.

What is Salvestrol?

Salvestrol is a branded range of concentrated plant compounds sourced from fruit and vegetables. It has a loyal following and we stock the full range, but no health claim is authorised for it and we do not make one.

Can I take these alongside prescribed medication?

Check with your GP or pharmacist first. NAC, quercetin and high-dose antioxidants can interact with some medicines, and anyone on treatment should ask before adding anything.

How much is delivery?

UK delivery is free on orders over £40. If you would like advice before ordering, call us on 01323 928523.