Immunity Support Supplements & Boosters

The right immunity supplement depends on your individual health needs, diet, and lifestyle. The most commonly recommended nutrients for immune health include vitamin C (for antioxidant support and white blood cell function), vitamin D (particularly important for those with limited sun exposure), zinc (which supports immune defence mechanisms), and probiotics (which support gut health and immune regulation).

If you're unsure where to start, a broad-spectrum immune support formula combining multiple key nutrients can be a convenient all-in-one option. Our pharmacists at Giant Chemist Harbour Town are also available to provide personalised guidance in-store.

Many people choose to take immunity support supplements year-round as part of their daily wellness routine, while others prefer to increase their intake heading into autumn and winter when cold and flu season is at its peak. Starting immune support supplements two to four weeks before the cooler months can give nutrients time to build up to therapeutic levels in the body.

If you feel a cold coming on, some supplements. particularly high-dose vitamin C, zinc lozenges, echinacea, and elderberry — may help reduce the severity or duration of symptoms when taken at the early onset. Always follow the dosage instructions on the label.

There is no single 'best' immune booster supplement — the most effective choice depends on your specific needs. That said, some of the most widely researched and recommended immune support nutrients include vitamin C, vitamin D, zinc, and elderberry extract. Combination immune support formulas — such as those from Blackmores, Swisse, and Nature's Way — are popular options that provide multiple immune-supporting nutrients in a single daily dose.

It's worth noting that supplements work best alongside a balanced diet, regular exercise, adequate sleep, and good hygiene practices. No supplement can replace the fundamentals of a healthy immune system.

Many immunity supplements are formulated specifically for children, including chewable tablets, gummies, and liquids that are dosed appropriately for younger age groups. Brands like Kids Smart, Nature's Way Kids Smart, and Sambucol Kids offer child-friendly immunity formulas.

Always check that any supplement you give to a child is appropriate for their age and weight, and consult your pharmacist or GP if you have any concerns — particularly for children under two years of age or those with underlying health conditions.

Elderberry (Sambucus nigra) is a dark purple berry that has been used in traditional medicine for centuries to support immune health. It contains high levels of antioxidants, particularly anthocyanins, and has been studied for its potential to reduce the severity and duration of cold and flu symptoms.

Elderberry supplements are available in a range of formats including syrups, capsules, and gummies, and are popular for both adults and children. Sambucol is one of the most well-known elderberry supplement brands and is available in our collection at Giant Chemist Harbour Town.

Yes — vitamin C and zinc are commonly taken together and are found in many combination immune support formulas. Both nutrients play important and complementary roles in immune function. Vitamin C supports the production and function of white blood cells and acts as an antioxidant, while zinc is essential for the development and activation of immune cells.

Combination vitamin C and zinc supplements are widely available at Giant Chemist Harbour Town in tablet, effervescent, and powder formats. If you're taking them separately, there is no known issue with taking both at the same time with food.

Giant Chemist Harbour Town stocks a wide range of immunity support supplements in-store at Harbour Town Premium Outlets, Gold Coast, including vitamin C, vitamin D, zinc, elderberry, probiotics, echinacea, and multi-nutrient immune formulas for adults and children.

You can also shop our full immunity support range online at giantchemistharbourtown.com.au with fast delivery Australia-wide. As a discount pharmacy, we offer competitive pricing on leading brands including Blackmores, Swisse, Sambucol, Nature's Way, Bioceuticals, and more.