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Seasonal Defence Supplements

The changing seasons can invariably weaken the health of the immune system, leading to illnesses such as colds and flu. While ensuring a healthy balance of exercise and diet, vitamins and supplements can help to fortify immunity and support defences against seasonal illnesses.

Choose from our specially formulated range of seasonal defence supplements which are designed to support the normal function of the immune system, all year round. Additionally, as with all Simply Supplements products, these supplements are GMP approved for premium quality.

29 products found 

Chewable Calcium & Vitamin D3 Tablets

5 202 Reviews
  • Delicious strawberry flavour
  • Chewable for easy swallowing
  • Important nutrients for strong bones & muscles
  • Provides support for the immune system
 
£8.49 £7.49 VIEW PRODUCT

Chewable Vitamin B12 500µg Tablets

4 201 Reviews
  • Delicious orange flavour
  • Supports immune function and energy levels
  • Suitable for vegans
  • Made in the UK to strict GMP standards
 
£8.99 VIEW PRODUCT

Chewable Zinc Tablets

4 200 Reviews
  • Tasty mint flavour
  • Crucial nutrient for a healthy immune system
  • Provides support for hair, skin and nails
  • Supports fertility and reproduction
 
£8.99 VIEW PRODUCT

SimplyGo Immunity

4 200 Reviews
  • Delicious and comprehensive support for the immune system
  • Available in blackcurrant and honey & lemon flavours
  • Nine essential nutrients alongside an innovative fruit blend
  • Suitable for vegans
Price from 
£7.99 £6.99 VIEW PRODUCT

Vitamin D3 Tablets 2,000iu

4.85 1,492 Reviews
  • Exceeds the government’s recommended dosage
  • Bioavailable form of Vitamin D for maximised absorption rates
  • Perfect for the maintenance of a healthy Vitamin D status
  • Provides support for bones, muscles, teeth and the immune system
Price from 
£8.89 VIEW PRODUCT

Garlic Capsules 5,000mg

4.85 1,876 Reviews
  • Qualities of garlic without the unpleasant taste
  • Support for the heart and the immune system
  • Contains thiamine, vitamin C and iron for comprehensive support
  • Some of the strongest garlic capsules on the market
Price from 
£9.29 VIEW PRODUCT

Cranberry Tablets 12,000mg with Vitamin C 80mg

4.8 2,158 Reviews
  • Promotes a healthy immune system
  • Contributes to normal metabolism
  • Protects against oxidative stress
  • High-quality ingredients
 
£12.19 £10.97 VIEW PRODUCT

Vitamin B12 Tablets 250mcg

4.7 1,087 Reviews
  • Contributes to the formation of red blood cells 
  • Contributes to normal psychological function
  • Contributes to normal energy-yielding metabolism
  • Contributes to normal homocysteine metabolism
 
£10.39 £9.35 VIEW PRODUCT

Cranberry Tablets 5,000mg

4.8 1,469 Reviews
  • Standardised cranberry extract
  • Contains vitamin C for immune support
  • Popular with female customers
  • Made from 100% natural cranberries
Price from 
£11.79 £9.99 VIEW PRODUCT

Garlic Capsules 500mg

4.8 1,691 Reviews
  • Garlic extract without odour or taste
  • Supports heart health, circulation and immunity
  • Assessed for purity and quality
  • Manufactured in the UK to strict GMP standards
 
£12.19 VIEW PRODUCT

Selenium 220mcg with Multivitamins & Iron

4.65 1,398 Reviews
  • Hair and skin support
  • Maintenance of immune and thyroid function
  • May support men’s health
  • Synergistic formula in every tablet
Price from 
£11.49 VIEW PRODUCT

Vitamin C 500mg with Rosehip 400mg

4.9 2,030 Reviews
  • Premium grade immunity support supplements
  • Promotes healthy blood vessels, cartilage, skin, and gums
  • One of the most essential elements of any diet
  • Supports your body’s production and maintenance of collagen
 
£14.69 VIEW PRODUCT

Super ProBio Complex

4.7 1,890 Reviews
  • Providing 8 strains of 'friendly' bacteria
  • One of the UK's strongest multi-strain formula
  • Suitable for vegetarians
 
£20.79 VIEW PRODUCT

Iron 14mg

4.8 1,697 Reviews
  • Premium quality supplement for protection against iron deficiency
  • Supports normal cognitive and immune system function
  • For normal energy yielding metabolism  and the reduction of tiredness and fatigue
  • Formulated to be highly bioavailable and easy to swallow 
 
£8.29 VIEW PRODUCT

Odourless Garlic Capsules 2mg

4.7 1,170 Reviews
  • All the benefits of garlic without the taste and odour
  • Supports heart health and immunity
  • High-quality, rich ingredients 
  • Made in the UK to strict GMP standards
 
£8.29 VIEW PRODUCT

ImmunoBoost Tablets with Black Garlic - SimplyBest

4.7 2,006 Reviews
  • Contributes to a healthy immune system
  • Synergistic combination of vitamin C and zinc
  • Suitable for vegetarian customers
  • Formulated for bioavailability and odour-control
 
£15.69 £11.99 VIEW PRODUCT

Vitality - Multivitamin Powder

4 443 Reviews
  • Providing over 15 essential nutrients
  • Supports metabolism and psychological function
  • Helps maintain the health of bones, muscles and joints
  • For healthy hair, skin and nails
 
£14.99 VIEW PRODUCT

Zinc Tablets 15mg

4.7 1,881 Reviews
  • Contributes to normal fertility and reproduction
  • Contributes to the maintenance of normal hair
  • Contributes to the normal function of the immune system
  • Manufactured in the UK to GMP standards
Price from 
£11.29 VIEW PRODUCT

Cold & Flu Echinacea Tablets

4 3 Reviews
  • For the relief of cold and flu symptoms 
  • Registered Traditional Herbal Medicine
  • Suitable for adults and children over 12 years
  • Made in the UK
Price from 
£4.99 VIEW PRODUCT

Coldcare Echinacea with Vitamin C & Zinc

4 1 Review
  • For the relief of cold and flu symptoms
  • High in vitamin C & zinc for extra immune support
  • Registered Traditional Herbal Remedy
  • Unique formulation that is made in the UK
     
Price from 
£4.99 VIEW PRODUCT

HayMax Kids Organic Allergen Barrier Balm


  • All-natural, organic ingredients
  • Gentle-on-the-skin formulation
  • Fragrance-free allergy balm 
  • Award-winning results
 
£6.49 VIEW PRODUCT

HayMax Pure


  • Award-winning allergy relief
  • Non-drowsy barrier balm with beeswax
  • Fragrance-free, non-greasy formulation
  • Soil Association certified organic ingredients
 
£6.49 VIEW PRODUCT

Seven Seas Extra High Strength Cod Liver Oil

4 2 Reviews
  • Supports heart health, brain function and vision
  • Helps to maintain normal bone and muscle function
  • Strong support for the immune system
  • Ideal for those whose diet lacks omega 3
 
£6.99 VIEW PRODUCT

Vitamin C 1000mg with Rosehip & Citrus Bioflavonoids

4.7 2,156 Reviews
  • Premium-grade support for general health and wellbeing
  • Promotes healthy skin, gums, cartilage formation and blood vessels
  • May help protect your cells against oxidative damage
  • High-quality immunity support
 
£10.49 £8.39 VIEW PRODUCT

Floradix Liquid Iron Formula


  • Formulated for maximum absorption
  • No colourings or preservatives
  • Vegetarian-safe formula
  • Pleasant fruity flavour
 
£9.49 VIEW PRODUCT

Hayfever Relief Oral Spray


  • Traditional homeopathic remedy
  • Contains three herbal ingredients
  • Handy oral spray for easy consumption
  • Safe for vegetarians & vegans
 
£9.49 VIEW PRODUCT

Super Zinc Plus

5 1,859 Reviews
  • For those concerned about their zinc status
  • Immune support
  • For healthy hair, skin and nails
  • Supports brain function and vision
 
£9.69 VIEW PRODUCT

VeganShield – Vegan Multivitamins with Omega 3

4 200 Reviews
  • Perfect support for a plant-based diet
  • Day & Night serving to maximise nutrient absorption
  • Contains vegan sources of omega 3 and vitamin D3
  • Ideal for assisting with good general health
 
£17.99 VIEW PRODUCT

Vitamin C 1000mg with Rosehip & Citrus Bioflavonoids

4.9 1,280 Reviews
  • Contributes to the normal function of the immune system
  • Contributes to the reduction of tiredness and fatigue
  • Contributes to normal energy-yielding metabolism
  • Contributes to normal psychological function
 
£22.09 £19.88 VIEW PRODUCT
 
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