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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.

17 products found

Vitamin D3 Tablets 2,000iu


4.85   1,254 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

Garlic Capsules 5,000mg


4.85   1,637 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 £7.43

Cranberry Tablets 12,000mg with Vitamin C 80mg


4.8   1,939 Reviews
  • Promotes a healthy immune system
  • Contributes to normal metabolism
  • Protects against oxidative stress
  • High-quality ingredients

£12.19

Vitamin B12 Tablets 250mcg


4.7   869 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

Cranberry Tablets 5,000mg


4.8   1,259 Reviews
  • Standardised cranberry extract
  • Contains vitamin C for immune support
  • Popular with female customers
  • Made from 100% natural cranberries
Price from
£11.79

Garlic Capsules 500mg


4.8   1,468 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

Selenium 220mcg with Multivitamins & Iron


4.9   1,893 Reviews
  • Hair and skin support
  • Maintenance of immune and thyroid function
  • May support men’s health
  • Synergistic formula in every tablet

£11.49

Vitamin C 500mg with Rosehip 400mg


4.8   1,821 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 £11.75

Super ProBio Complex


5   1,699 Reviews
  • Providing 8 strains of 'friendly' bacteria
  • One of the UK's strongest multi-strain formula
  • Suitable for vegetarians

£20.79

Iron 14mg


4.8   1,487 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 £7.46

Odourless Garlic Capsules 2mg


4.6   954 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 £7.46

ImmunoBoost Tablets with Black Garlic - SimplyBest


4.7   1,806 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

Selenium 220mcg with Multivitamins & Iron


4.9   1,119 Reviews
  • Hair, skin and nails support
  • Maintenance of immune and thyroid function
  • Highly popular with male customers
  • Synergistic formula 

£6.29

Zinc Tablets 15mg


4.65   1,648 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
£6.79

Super Zinc Plus


5   1,657 Reviews
  • For those concerned about their zinc status
  • Immune support
  • For healthy hair, skin and nails
  • Supports brain function and vision

£9.69

Vitamin C 1000mg with Rosehip & Citrus Bioflavonoids


4.8   1,949 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

Vitamin C 1000mg with Rosehip & Citrus Bioflavonoids


4.9   1,070 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

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