On Guard - The Comprehensive One a Day Immune Support
On-Guard isn’t just for those cold winter months. Our potent one-a-day premium immune formulation is ready for action and on guard to help provide your body with vitamins (including Vitamin D) to support the immune system. Enhanced with immune lifting vitamins and balancing plant extracts, to keep you on great form all year round.
Free UK delivery
Top Notch Nutrition
Only high quality ingredients
Gold Standards
Made to GMP certified standards
100% Vegan
Ethical & sustainable
Fully Natural
No artificial colours of flavours
Free Delivery
Fits through the letterbox!
- Why choose On Guard?
- Product Information
- Key Ingredients
- How to take?
- Your immune system
Key Features:
- On-guard comes with a month’s supply of vitamins for the immune system, containing 29 high-quality ingredients.
- A convenient, one-a-day tablet. No need to dissolve.
- Complete multivitamin for the immune system designed by an expert Biochemist Nutritionist and Pharmacist.
- Contains potent micronutrients specifically designed to protects your body’s immune defence with optimal levels.
- Not only does it contain vitamins for the immune system, On-Guard also contain a wide spectrum of vitamins to support normal skin and hair, strong bones and teeth, the maintenance of heart function and the reduction of tiredness.
- Manufactured in the UK to the highest standards aligned with the Good Manufacturing Process (GMP).
- Vegan approved formula.
This one’s for you:
- Perma-busy bodies
- Fatigued over-doers
- Seasonal flu fighters
- Always-on individuals
Ingredient List:
Ingredient | Each tablet typically provides; | % NRV |
---|---|---|
Vitamin A | 190mcg RE | 24 |
Vitamin D | 10mcg | 200 |
Vitamin E | 20mg TE | 167 |
Vitamin C | 200mg | 250 |
Thiamine (Vitamin B1) | 1.1mg | 100 |
Riboflavin (Vitamin B2) | 6mg | 429 |
Niacin (Vitamin B3) | 27mg NE | 169 |
Vitamin B6 | 10mg | 714 |
Folic acid | 200mcg | 100 |
Vitamin B12 | 5mcg | 200 |
Pantothenic Acid (Vitamin B5) |
20mg | 333 |
Magnesium | 57mg | 15 |
Iron | 8mg | 57 |
Zinc | 15mg | 150 |
Copper | 1000mcg | 100 |
Manganese | 2mg | 100 |
Selenium | 180mcg | 327 |
Chromium | 100mcg | 250 |
Co-Enzyme Q10 | 20mg | - |
Tomato Extract Providing Lycopene |
6.5mg 250mcg |
- |
Black Elderberry Extract Providing flavonoids |
50mg 1mg |
- |
Astaxanthin | 1.5mg | - |
Resveratrol | 30mg | - |
Grapeseed Extract Providing Polyphenols |
50mg 47.5mg |
- |
Maritime Pine Bark Extract Equivalent to Fresh Herb Providing Proanthocyanidins 30mg |
31.5mg 1575mg 30mg |
- |
Siberian Ginseng Extract Equivalent to Fresh Herb |
5mg 175mg |
- |
Astralagus Extract equivalent to fresh herb |
5mg 25mg |
- |
L-Cysteine | 20mg | - |
L-Carnitine | 30mg | - |
NRV = Nutrient Reference Value
Major players:
B vitamins

B-vitamins are widely known to be one of the best vitamins for the immune system. They provide your bodies with a wide range of immune benefits such as helping convert nutrients into energy, supporting cellular signalling, healthy DNA repair and production, neurological function and red blood cell production.
Minerals
Zinc, copper and iron are another group of great vitamins for immune system support. They also maintain cell division and normal DNS synthesis helping you to recover, aiding blood cell generation and maintaining energy metabolism they help keep you fighting.
Vitamin D

Many scientists believe that we pick up more colds and flu’s during the winter due to lower vitamin D levels from shorter days and less sunlight. Our bodies need sunshine to make vitamin D, and our diets do not provide the amount our bodies required and so during the winter our vitamin levels reduce. Vitamin D is essential in maintaining our immune system and anti-inflammatory response, making Vitamin D one of the best vitamins to boost immunity.
Synergistics
Black Elderberry Extract has been used for hundreds of years and is well-known to be packed full of vitamins for the immune system. The berries grow lush in hedgerows and their juice is rich in vitamin C which reduces oxidative stress. We have added other herbal heavyweights, Lycopene, Siberian Ginseng, Astralagus, Resveratrol, Grapeseed, Astaxanthin and maritime pine bark which are packed full of polyphenols, carotenoids, proanthocyanidins and flavonoids.
All of our colourings are entirely made from vegetable and fruit concentrates, with no artificial ingredients.
Recommended intake:
Directions: Take one tablet a day with water, preferably at mealtimes. Don’t exceed the recommended dose.
Cautions: Do not use this product if you are under 18 years of age, or are pregnant or breastfeeding. If you are on medication, please check with your doctor before taking.
How long do vitamins take to work?
You may feel some of the effects of a multinutrient supplement within the first few days, with additional effects noticeable after 2 to 4 weeks in some individuals. To experience the full benefits of a supplement you may need to take it for several months.
Immune's the name, protecting you is the game:
Our immune system is a seriously impressive network of cells, tissues, organs and proteins, all pulling together to guard against invading bacteria or harmful organisms. Second in complexity only to the nervous system, without it we’d be scuppered. Eating healthy nosh, exercising, getting enough shuteye and reducing stress all play a part in keeping your immune system happy. It’s also important to get the best vitamins for immune system support.
Why choose On Guard?
Key Features:
- On-guard comes with a month’s supply of vitamins for the immune system, containing 29 high-quality ingredients.
- A convenient, one-a-day tablet. No need to dissolve.
- Complete multivitamin for the immune system designed by an expert Biochemist Nutritionist and Pharmacist.
- Contains potent micronutrients specifically designed to protects your body’s immune defence with optimal levels.
- Not only does it contain vitamins for the immune system, On-Guard also contain a wide spectrum of vitamins to support normal skin and hair, strong bones and teeth, the maintenance of heart function and the reduction of tiredness.
- Manufactured in the UK to the highest standards aligned with the Good Manufacturing Process (GMP).
- Vegan approved formula.
This one’s for you:
- Perma-busy bodies
- Fatigued over-doers
- Seasonal flu fighters
- Always-on individuals
Product Information
Ingredient List:
Ingredient | Each tablet typically provides; | % NRV |
---|---|---|
Vitamin A | 190mcg RE | 24 |
Vitamin D | 10mcg | 200 |
Vitamin E | 20mg TE | 167 |
Vitamin C | 200mg | 250 |
Thiamine (Vitamin B1) | 1.1mg | 100 |
Riboflavin (Vitamin B2) | 6mg | 429 |
Niacin (Vitamin B3) | 27mg NE | 169 |
Vitamin B6 | 10mg | 714 |
Folic acid | 200mcg | 100 |
Vitamin B12 | 5mcg | 200 |
Pantothenic Acid (Vitamin B5) |
20mg | 333 |
Magnesium | 57mg | 15 |
Iron | 8mg | 57 |
Zinc | 15mg | 150 |
Copper | 1000mcg | 100 |
Manganese | 2mg | 100 |
Selenium | 180mcg | 327 |
Chromium | 100mcg | 250 |
Co-Enzyme Q10 | 20mg | - |
Tomato Extract Providing Lycopene |
6.5mg 250mcg |
- |
Black Elderberry Extract Providing flavonoids |
50mg 1mg |
- |
Astaxanthin | 1.5mg | - |
Resveratrol | 30mg | - |
Grapeseed Extract Providing Polyphenols |
50mg 47.5mg |
- |
Maritime Pine Bark Extract Equivalent to Fresh Herb Providing Proanthocyanidins 30mg |
31.5mg 1575mg 30mg |
- |
Siberian Ginseng Extract Equivalent to Fresh Herb |
5mg 175mg |
- |
Astralagus Extract equivalent to fresh herb |
5mg 25mg |
- |
L-Cysteine | 20mg | - |
L-Carnitine | 30mg | - |
NRV = Nutrient Reference Value
Key Ingredients
Major players:
B vitamins

B-vitamins are widely known to be one of the best vitamins for the immune system. They provide your bodies with a wide range of immune benefits such as helping convert nutrients into energy, supporting cellular signalling, healthy DNA repair and production, neurological function and red blood cell production.
Minerals
Zinc, copper and iron are another group of great vitamins for immune system support. They also maintain cell division and normal DNS synthesis helping you to recover, aiding blood cell generation and maintaining energy metabolism they help keep you fighting.
Vitamin D

Many scientists believe that we pick up more colds and flu’s during the winter due to lower vitamin D levels from shorter days and less sunlight. Our bodies need sunshine to make vitamin D, and our diets do not provide the amount our bodies required and so during the winter our vitamin levels reduce. Vitamin D is essential in maintaining our immune system and anti-inflammatory response, making Vitamin D one of the best vitamins to boost immunity.
Synergistics
Black Elderberry Extract has been used for hundreds of years and is well-known to be packed full of vitamins for the immune system. The berries grow lush in hedgerows and their juice is rich in vitamin C which reduces oxidative stress. We have added other herbal heavyweights, Lycopene, Siberian Ginseng, Astralagus, Resveratrol, Grapeseed, Astaxanthin and maritime pine bark which are packed full of polyphenols, carotenoids, proanthocyanidins and flavonoids.
All of our colourings are entirely made from vegetable and fruit concentrates, with no artificial ingredients.
How to take?
Recommended intake:
Directions: Take one tablet a day with water, preferably at mealtimes. Don’t exceed the recommended dose.
Cautions: Do not use this product if you are under 18 years of age, or are pregnant or breastfeeding. If you are on medication, please check with your doctor before taking.
How long do vitamins take to work?
You may feel some of the effects of a multinutrient supplement within the first few days, with additional effects noticeable after 2 to 4 weeks in some individuals. To experience the full benefits of a supplement you may need to take it for several months.
Your immune system
Immune's the name, protecting you is the game:
Our immune system is a seriously impressive network of cells, tissues, organs and proteins, all pulling together to guard against invading bacteria or harmful organisms. Second in complexity only to the nervous system, without it we’d be scuppered. Eating healthy nosh, exercising, getting enough shuteye and reducing stress all play a part in keeping your immune system happy. It’s also important to get the best vitamins for immune system support.