BioCare Vitamin C Powder: A high potency, low acid form of vitamin C in a convenient to use powder form. For immune support, healthy skin and collagen and energy production
Effective: Vitamin C contributes to the normal functioning of the immune system, reduction of tiredness and fatigue, and skin and collagen formation. It is one of our go-to essential products for everyday needs
Optimum Support: Delivers optimum support, providing over 1600mg of vitamin C per daily dose as magnesium ascorbate which is a low-acid form of vitamin C, making it gentler on the stomach
Flexible: Can be easily mixed into liquids. An alternative to tablets or capsules or for those with digestive and absorption difficulties. No unnecessary additives or allergens. Vegan friendly
BioCare uses the best possible ingredients and processes to ensure the products are of highest quality. These highly effective products are accompanied by the best level of support and service, to effectively meet the requirements of each individual
Complete daily multivitamin with 24 key nutrients – vitamins and minerals – Contains 24 individual vitamins and minerals, including all 13 essential vitamins, in one easy to swallow tablet. Each tablet includes Vitamin A, Vitamin E, Vitamin C, Vitamin K, Vitamin B1, vitamin B2, Vitamin B6, Vitamin B12, Vitamin D, Biotin, Folic Acid, Niacin, Pantothenic acid, Calcium, Phosphorus, Magnesium, Iron, Iodine, Copper, Manganese, Chromium, Molybdenum, Selenium, Zinc. Giving you a complete multivitamin with high quality micronutrients to help support your general wellbeing and nutritional needs
Multivitamin tablets for men and women over 50 – Centrum Advance 50 Plus is specically developed with adjusted levels of key nutrients to help meet the changing needs that come with age. Vitamin B12 & Thiamine for instance, each help unlock energy from your diet, Vitamin C supports the normal function of the immune system, Vitamin A and riboavin support your eyesight, and Calcium, Vitamin D and Vitamin K help maintain normal strong bones. In addition, it contains Vitamins B6, B12 and iron which each contribute to reduction of tiredness and fatigue. The vitamins have been carefully selected to support your overall health and wellbeing
100 Days full supply – incredible 100 tablets pack gives amazing Value helping to keep you replenished with a range of 24 vitamins and minerals for more than 3 months. The nutrient formula for Centrum Advance 50 Plus contains an adjusted level of all essential vitamins, plus important minerals and trace elements making it an ideal supplement to help fulll the nutritional needs for adults over 50
Peace of mind – Centrum Advance 50 Plus is sugar, gluten and lactose-free and is backed by over 35 years of nutritional expertise. Centrum is the world’s No. 1 brand of multivitamins and minerals
COMPLETE DAILY MULTIVITAMIN WITH 24 KEY NUTRIENTS – VITAMINS AND MINERALS – Contains 24 individual vitamins and minerals, including all 13 essential vitamins, in one easy to swallow tablet. Each tablet includes, Vitamin C, Vitamin B12 and Vitamin D
The World’s No. 1 Multivitamin, based on Worldwide value sales of the Centrum range. For verification please contact customer relations
MULTIVITAMINS TABLETS FOR A BUSY LIFESTYLE – Centrum Advance Multivitamin is designed to help you meet your nutritional needs and support your everyday health and wellbeing
Centrum Advance is free from wheat, gluten, milk, lactose, nuts, sugar and GMO
Contains vitamins B2 and B6 to help unlock energy from food to contribute to your overall health and wellbeing. Additionally, Centrum Advance contains vitamin C which is important to the normal function of the immune system
✔ MADE IN THE UK – Formulated by Shona Wilkinson one of UK top Nutritionist, Genius Mind doesn’t leave quality up to chance. Highlights from our extra strength formula include 100mg of Phosphatidylcholine, 120mg of Gingko Biloba and 100mg of L-Tyrosine for higher-level thought processing, Neurogenesis and nerve support.
✔ THINK CLEARLY – Genius Mind was developed to help you thrive – whether at work, studying, playing sports, and more. Genius Mind’s formula includes powerful natural cognitive enhancers like Ginkgo Biloba, Bacopa Monnieri, DMAE and natural caffeine to facilitate short-term mental performance and long-term neuro health. Other ingredients like Vitamin B12 and Zinc also promote improved energy levels and mood, aiming to keep you happy, alert, and operating at your peak!
✔ IMPROVES MOOD & LOGICAL PROCESSING – The ingredients in Genius Mind work to improve mood and alertness to aid logical processing. When the mind is energised and in the right state, logical reasoning and creativeness are at its best.
✔ HIGH QUALITY NOOTROPIC – Each capsule contains highly effective ingredients that support memory, focus, mental clarity and alertness. All products are manufactured in the UK and have been expertly packed in a GMP certified facility.
✔ VEGAN AND GLUTEN-FREE – Genius Mind is made from all-natural vitamins, minerals & herbal extracts, without the use of harmful additives; non-GMO, Vegan friendly, Gluten free and free of hormones.
✔ HI THERE. WE’RE JUSTFLOOW: Before there is an action, there is an idea. We started JustFloow to enable people to get in the flow-state, unlocking their full potential and putting their ideas into action. Be the best version of yourself.
HIGH-DOSAGE: One dose, one capsule, of Jarrow Formulas colostrum contains 400mg of colostrum, including 120mg of immunoglobulins, which you can supply to your body daily
GOOD BIOAVAILABILITY: Jarrow Formulas Colostrum is characterised by good bioavailability and is suitable for a vegetarian lifestyle
HIGH QUALITY: Jarrow Formulas colostrum capsules are tested in independent laboratories for quality and purity
WITHOUT UNWANTED ADDITIVES: The colostrum complex from Jarrow Formulas is gluten-free and produced without genetic engineering
ORIGINAL PRODUCT: The recommended intake differs from the US recommended intake due to German and European guidelines. Please consult a doctor or alternative practitioner for an individual intake recommendation
Osteo Intensive: A unique combination of high potency, powerful nutrients for bone support
Effective: Providing high potency nutrients including vitamins D3, K2, calcium and magnesium for healthy bones and muscle function, along with boron and manganese
Optimum Support: Contains an effective dose of silica derived from bamboo extract. Silica is a natural component of connective tissue in the body, including bone
Advanced: Calcium and magnesium are provided in citrate forms, vitamin D as vegan D3 (cholecalciferol), and vitamin K2 as Menaquinone-7, for optimum absorption and use by the body
Flexible: Only use what you need, easily mixed into liquids. An alternative to tablets or capsules or for those with digestive and absorption difficulties
HIGH-DOSAGE: One dose, one capsule, of Jarrow Formulas colostrum contains 400mg of colostrum, including 120mg of immunoglobulins, which you can supply to your body daily
GOOD BIOAVAILABILITY: Jarrow Formulas Colostrum is characterised by good bioavailability and is suitable for a vegetarian lifestyle
HIGH QUALITY: Jarrow Formulas colostrum capsules are tested in independent laboratories for quality and purity
WITHOUT UNWANTED ADDITIVES: The colostrum complex from Jarrow Formulas is gluten-free and produced without genetic engineering
ORIGINAL PRODUCT: The recommended intake differs from the US recommended intake due to German and European guidelines. Please consult a doctor or alternative practitioner for an individual intake recommendation
Immune & Gastrointestinal Health – USDA-certified Colostrum Prime Life contains high concentrations of natural immunoglobulins, which are proteins that support immune and gastrointestinal health. The formula includes a minimum of 30% immunoglobulins.
Free From Antibiotics & Added Hormones – Colostrum is collected within 16 hours of calving from American pasture-fed cows that have been raised without the use of growth hormone (rBGH), antibiotics, or pesticides in their feed.
Retention of Biological Activity – Colostrum low-temperature processing ensures that immunoglobulin fractions are not denatured. To further minimize the denaturation of immunoglobulins, the formula is delivered in delayed release capsules.
Convenient Veggie Caps – Take one capsule once or twice per day between meals or as directed by your qualified healthcare professional.
Superior Nutrition & Formulation – The goal of Jarrow Formulas is to promote optimal health with high-quality, effective, affordable, and superior formulation of dietary supplements. Our customers can be assured of purity, value, and potency.
✔ HIGH STRENGTH, PURE, AND SUPER CONCENTRATED – Genius Ionic Zinc Sulphate delivers 200% of your daily amount, 10 drops gives 20mg with 2 Months supply.
✔ YOUR DAILY DOSE OF IMMUNE SUPPORT – Zinc supports your immune system, metabolism function, wound healing, cardiovascular health and your sense of taste and smell. Genius Ionic Zinc Sulphate is the best form of Zinc that is easily recognise by the body for optimal effect.
✔ GREAT ABSORPTION – Ionic Zinc is more readily bioavailable and has the most optimal absorption level in the body compared to powder, capsules and tablet form.
✔ FOR YOUR BONE, TEETH, SKIN, HAIR & NAILS – Our super concentrated Zinc supports the growth and repair of your bones and teeth. Zinc can help defend the skin against sun damage and has antimicrobial effects, which means that zinc can help treat skin conditions such as bacterial acne. A symptom of zinc deficiency is hair loss, so adding zinc to a hair, skin and nail supplement may help correct suboptimal levels.
✔ SUPPORT YOUR FERTILITY AND REPRODUCTION FUNCTION – Zinc has properties for maintaining normal testosterone levels in the blood and for normal fertility and reproduction function.
✔ HI THERE. WE’RE JUSTFLOOW – Before there is an action, there is an idea. We started JustFloow to enable people to get in the flow-state, unlocking their full potential and putting their ideas into action. Be the best version of yourself.
✔ MADE IN THE UK – Formulated by Shona Wilkinson one of UK top Nutritionist, Genius Mind doesn’t leave quality up to chance. Highlights from our extra strength formula include 100mg of Phosphatidylcholine, 120mg of Gingko Biloba and 100mg of L-Tyrosine for higher-level thought processing, Neurogenesis and nerve support.
✔ THINK CLEARLY – Genius Mind was developed to help you thrive – whether at work, studying, playing sports, and more. Genius Mind’s formula includes powerful natural cognitive enhancers like Ginkgo Biloba, Bacopa Monnieri, DMAE and natural caffeine to facilitate short-term mental performance and long-term neuro health. Other ingredients like Vitamin B12 and Zinc also promote improved energy levels and mood, aiming to keep you happy, alert, and operating at your peak!
✔ IMPROVES MOOD & LOGICAL PROCESSING – The ingredients in Genius Mind work to improve mood and alertness to aid logical processing. When the mind is energised and in the right state, logical reasoning and creativeness are at its best.
✔ HIGH QUALITY NOOTROPIC – Each capsule contains highly effective ingredients that support memory, focus, mental clarity and alertness. All products are manufactured in the UK and have been expertly packed in a GMP certified facility.
✔ VEGAN AND GLUTEN-FREE – Genius Mind is made from all-natural vitamins, minerals & herbal extracts, without the use of harmful additives; non-GMO, Vegan friendly, Gluten free and free of hormones.
✔ HI THERE. WE’RE JUSTFLOOW: Before there is an action, there is an idea. We started JustFloow to enable people to get in the flow-state, unlocking their full potential and putting their ideas into action. Be the best version of yourself.
Osteoplex is a combination of magnesium and calcium in their bioavailable citrate form with boron, vitamins D & K. Vitamins D, K, calcium and magnesium contribute to maintenance of normal bones.
The formulation has been improved and now includes increased vitamin K2 as menaquinone-7, a more effective form of vitamin K for bone support. Also contains increased amount of 1000iu of vitamin D.
BioCare Osteoplex provides the key structural minerals, calcium and magnesium, in their bioavailable citrate form, to ensure maximum absorption and utilisation.
This supplement comes in an easy to take capsule form and is suitable for vegetarians and vegans. This pack contains 30 days’ supply at 3 capsules per day.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
✔ UNIQUE, STRONG AND EFFECTIVE FORMULA – Feeling uncomfortable with being bloated? Genius Gut is a scientifically-Proven formula that effectively alleviates constipation issues. Order today and help your gut health to feel good all over again.
✔ NATURAL COLON DETOX – Naturally flush out your body’s waste build-up to improve your gut health while getting your digestive system into an optimal shape. Genius Gut acts as an effective natural laxative for constipation.
✔ A GAME-CHANGING FORMULA: Genius Gut is a unique blend of herbs and botanicals – Alleviating Constipation, Bloating and Gas. This revolutionary formula is a natural herbal laxative supplement and stool softener promoting healthy bowel movements.
✔ SAFE & EFFECTIVE: Clinically tested in a GMP-certified facility in the UK. No Side-Effect, safe for long-term and daily Use. We stand behind our product with confidence. If you are not completely satisfied, get in touch within 30 days, and we will give you your money back.
✔ UNIQUE, STRONG AND EFFECTIVE FORMULA – Feeling uncomfortable with being bloated? Genius Gut is a scientifically-Proven formula that effectively alleviates constipation issues. Order today and help your gut health to feel good all over again.
✔ NATURAL COLON DETOX – Naturally flush out your body’s waste build-up to improve your gut health while getting your digestive system into an optimal shape. Genius Gut acts as an effective natural laxative for constipation.
✔ A GAME-CHANGING FORMULA: Genius Gut is a unique blend of herbs and botanicals – Alleviating Constipation, Bloating and Gas. This revolutionary formula is a natural herbal laxative supplement and stool softener promoting healthy bowel movements.
✔ SAFE & EFFECTIVE: Clinically tested in a GMP-certified facility in the UK. No Side-Effect, safe for long-term and daily Use. We stand behind our product with confidence. If you are not completely satisfied, get in touch within 30 days, and we will give you your money back.
Liquid iron gluconate comes in a simple, purified water base with no unnecessary additives to help form red blood cells, support energy and reduce tiredness and fatigue.
Optimally absorbed, high potency liquid form providing 7mg per 10 drops. Particularly suited to individuals who are sensitive to inorganic iron supplements.
Iron contributes to normal oxygen transport, normal formation of red blood cells and reduction of tiredness and fatigue. It also contributes to normal cognitive function.
Can easily mixed into liquids or under the tongue. Especially suited to individuals who have difficulty swallowing tablets or capsules, those with absorption difficulties. It is also vegan friendly.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
Liquid iron gluconate comes in a simple, purified water base with no unnecessary additives to help form red blood cells, support energy and reduce tiredness and fatigue.
Optimally absorbed, high potency liquid form providing 7mg per 10 drops. Particularly suited to individuals who are sensitive to inorganic iron supplements.
Iron contributes to normal oxygen transport, normal formation of red blood cells and reduction of tiredness and fatigue. It also contributes to normal cognitive function.
Can easily mixed into liquids or under the tongue. Especially suited to individuals who have difficulty swallowing tablets or capsules, those with absorption difficulties. It is also vegan friendly.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
Liquid iron gluconate comes in a simple, purified water base with no unnecessary additives to help form red blood cells, support energy and reduce tiredness and fatigue.
Optimally absorbed, high potency liquid form providing 7mg per 10 drops. Particularly suited to individuals who are sensitive to inorganic iron supplements.
Iron contributes to normal oxygen transport, normal formation of red blood cells and reduction of tiredness and fatigue. It also contributes to normal cognitive function.
Can easily mixed into liquids or under the tongue. Especially suited to individuals who have difficulty swallowing tablets or capsules, those with absorption difficulties. It is also vegan friendly.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
Liquid iron gluconate comes in a simple, purified water base with no unnecessary additives to help form red blood cells, support energy and reduce tiredness and fatigue.
Optimally absorbed, high potency liquid form providing 7mg per 10 drops. Particularly suited to individuals who are sensitive to inorganic iron supplements.
Iron contributes to normal oxygen transport, normal formation of red blood cells and reduction of tiredness and fatigue. It also contributes to normal cognitive function.
Can easily mixed into liquids or under the tongue. Especially suited to individuals who have difficulty swallowing tablets or capsules, those with absorption difficulties. It is also vegan friendly.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
Liquid iron gluconate comes in a simple, purified water base with no unnecessary additives to help form red blood cells, support energy and reduce tiredness and fatigue.
Optimally absorbed, high potency liquid form providing 7mg per 10 drops. Particularly suited to individuals who are sensitive to inorganic iron supplements.
Iron contributes to normal oxygen transport, normal formation of red blood cells and reduction of tiredness and fatigue. It also contributes to normal cognitive function.
Can easily mixed into liquids or under the tongue. Especially suited to individuals who have difficulty swallowing tablets or capsules, those with absorption difficulties. It is also vegan friendly.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
Liquid iron gluconate comes in a simple, purified water base with no unnecessary additives to help form red blood cells, support energy and reduce tiredness and fatigue.
Optimally absorbed, high potency liquid form providing 7mg per 10 drops. Particularly suited to individuals who are sensitive to inorganic iron supplements.
Iron contributes to normal oxygen transport, normal formation of red blood cells and reduction of tiredness and fatigue. It also contributes to normal cognitive function.
Can easily mixed into liquids or under the tongue. Especially suited to individuals who have difficulty swallowing tablets or capsules, those with absorption difficulties. It is also vegan friendly.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
Liquid iron gluconate comes in a simple, purified water base with no unnecessary additives to help form red blood cells, support energy and reduce tiredness and fatigue.
Optimally absorbed, high potency liquid form providing 7mg per 10 drops. Particularly suited to individuals who are sensitive to inorganic iron supplements.
Iron contributes to normal oxygen transport, normal formation of red blood cells and reduction of tiredness and fatigue. It also contributes to normal cognitive function.
Can easily mixed into liquids or under the tongue. Especially suited to individuals who have difficulty swallowing tablets or capsules, those with absorption difficulties. It is also vegan friendly.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
BioCare Magnesium Citrate is a potent supplement of magnesium that is easily absorbed and used by the body. It provides 100mg of elemental magnesium per capsule and is suitable for everyday use.
Minerals are more easily digested and absorbed by the body when they are bound to organic acids. Magnesium citrate is a natural combination of magnesium bound to citric acid.
Magnesium is an essential mineral that is vital for health and well being. It supports energy metabolism and can help reduce fatigue. It also supports nervous and muscle function.
Biocare Magnesium Citrate comes in a small capsule size making it easy to swallow. This magnesium citrate supplement is citrus free and it is also suitable for vegetarians and vegans.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
Magnesium Malate provides a complex of malic acid and magnesium. Magnesium contributes to a number of important functions including normal muscle function and maintenance of normal bones and teeth.
Magnesium contributes to normal energy metabolism and the reduction of tiredness and fatigue. It also contributes to normal functioning of the nervous system and normal psychological function.
BioCare Magnesium Malate provides a complex of malic acid and magnesium for optimal bioavailability. It may be particularly useful for sports people or those who undertake extensive exercise.
Magnesium Malate provides 116mg of magnesium and 720mg of malic acid per daily intake. It is free from dairy and soya, and no gluten containing ingredients. Suitable for vegetarians and vegans.
BioCare provides the most effective and highest quality products, accompanied by the best level of support and service, to effectively meet the requirements of each individual. BioCare uses the best possible ingredients and processes to ensure the products are of highest quality.
Unique daily multivitamin with 21 essential nutrients plus ginkgo biloba & ginseng extracts – Contains 21 individual vitamins and minerals, including all 13 essential vitamins, in one easy to swallow tablet. Each tablet includes Vitamin A, Vitamin E, Vitamin C, Vitamin D, Vitamin K, Vitamin B1, Vitamin B2, Vitamin B6, Vitamin B12, Biotin, Folic Acid, Niacin, Pantothenic Acid, Magnesium, Iron, Iodine, Copper, Manganese, Chromium, Molybdenum, Selenium, Zinc, Ginkgo Biloba Extract, Ginseng Extract. Giving you a unique daily multivitamin with high quality micronutrients to help support the physical demands of an active lifestyle.
Multivitamins tablets specially formulatd for sports people and active lifestyles – Centrum Performance has been developed with Micronutrients to specifically support the health and wellbeing of adults with an active lifestyle. Centrum Performance contains Gingko Biloba and pantothenic acid to help maintain an active mind, Ginseng to support physical performance for active lifestyles and zinc which contributes to the maintenance of normal bones. In addition vitamins B6 and B12 help unlock energy from your diet.
60 Days full supply – incredible 60 tablets pack gives amazing Value helping to support your active lifestyle with a range of 21 essential vitamins and minerals for 2 months. The nutrient formula for Centrum Performance contains a balanced amount of all essential vitamins, plus important minerals, trace elements and extracts making it an ideal supplement to your own diet
Peace of mind – Centrum Performance is sugar, gluten and lactose-free and is backed by over 35 years of nutritional expertise. Centrum is the world’s No.1 brand of multivitamins and minerals
Helps With – Energy Release, Physical Performance, Immunity Support, Cognitive Function and Heart Function
Complete daily multivitamin with 24 key nutrients – vitamins and minerals – high in Vitamin D – Contains 24 individual vitamins and minerals, including all 13 essential vitamins, in one easy to swallow tablet. Each tablet includes Vitamin A, Vitamin E, Vitamin C, Vitamin K, Vitamin B1, Vitamin B2, Vitamin B6, Vitamin B12, Vitamin D, Biotin, Folic Acid, Niacin, Pantothenic Acid, Calcium, Phosphorus, Magnesium, Iron, Iodine, Copper, Manganese, Chromium, Molybdenum, Selenium, Zinc. Giving you a complete daily multivitamin with high quality micronutrients to help support your general wellbeing and nutritional needs.
Multivitamins tablets tailored for men over 50# – Centrum Men 50+ has been developed with Micronutrients to specifically support the nutritional needs of Men over 50 who want to live life to the fullest. Centrum Men 50+ contains Zinc, which helps maintain normal testosterone levels in the blood, Vitamin C which supports the normal functioning of the immune system and Iron which contributes to normal cognitive function as well as reduction of tiredness and fatigue. Additionally, B vitamins such as B2 & B5 contribute to supporting energy yielding metabolism and B1 to support normal heart function, plus Magnesium which contributes to normal muscle function.
30 Days full supply – incredible 30 tablets pack gives amazing Value helping to keep you replenished with a range of 24 vitamins and minerals for 1 month. The nutrient formula for Centrum Men 50+ contains a balanced amount of all essential vitamins, plus important minerals and trace elements making it an ideal supplement to your own diet.
Peace of mind – Centrum Men 50+ is sugar, gluten and lactose-free and is backed by over 35 years of nutritional expertise. Centrum is the world’s No. 1 brand of multivitamins and minerals.
Helps With – Nutritional support, Vitality Support, Cognitive Function, Heart Function and Immunity Support#.
Do not exceed the recommended daily dose. Keep out of reach of children
COMPLETE DAILY MULTIVITAMIN WITH 24 KEY NUTRIENTS – VITAMINS AND MINERALS – Contains 24 individual vitamins and minerals, including all 13 essential vitamins, in one easy to swallow tablet. Each tablet includes, Vitamin C, Vitamin B12 and Vitamin D
The World’s No. 1 Multivitamin, based on Worldwide value sales of the Centrum range. For verification please contact customer relations
MULTIVITAMINS TABLETS FOR A BUSY LIFESTYLE – Centrum Advance Multivitamin is designed to help you meet your nutritional needs and support your everyday health and wellbeing
Centrum Advance is free from wheat, gluten, milk, lactose, nuts, sugar and GMO
Contains vitamins B2 and B6 to help unlock energy from food to contribute to your overall health and wellbeing. Additionally, Centrum Advance contains vitamin C which is important to the normal function of the immune system