Best Antioxidant Supplements Australia 2026: 7 Compared

Last updated: October 9, 2026 · By Eternal Elixir Editorial

Last updated: October 9, 2026 · By Eternal Elixir Editorial · 7 products compared

About 3,600 Australians a month type “antioxidant supplements” into Google, and the first page they get back is mostly shop shelves: marketplace bestseller lists, pharmacy category pages and a brand homepage. Nobody on that page lines up what a daily serve of each product actually contains, or what it costs you per day in Australian dollars. This guide does that for seven antioxidant supplements you can buy in Australia today, with prices read from the sellers’ own pages on October 9, 2026.

We cover the main types people mean when they say antioxidant supplements: reduced glutathione, the stilbene resveratrol, grape seed extract, coenzyme Q10 and vitamin C, plus one pharmacy formula that mixes several of them in a single capsule. Each product gets its dose per serve, its cost per serve, honest pros and cons, and the job it suits best.

Disclosure: Eternal Elixir makes Reduced L-Glutathione 2000mg and Trans-Resveratrol 1200mg; glutathione is our pick, and every figure for the other products is taken from their own labels and retailer pages.

Antioxidant supplements in Australia compared: price per serve table

Every row below uses the label’s own daily directions. Price per serve is the shelf price divided by the number of daily serves in the pack, so a two-capsule serve is counted as one serve. Prices are in Australian dollars and include any current sale price shown on the seller’s page.

Two things stand out once the table is normalised. Vitamin C is by far the cheapest antioxidant to take every day, and the pharmacy multi-formula sits in the middle on price while spreading its dose across nine or more ingredients. Glutathione is where the spread is widest: the same 1000mg costs about $0.44 from the Eternal Elixir bottle and about $3.20 from a 250mg pharmacy capsule. If glutathione is the antioxidant you are after, our full glutathione supplement comparison for Australia ranks six glutathione products on their own.

What antioxidant supplements are, and what the evidence says

Antioxidants are compounds that neutralise free radicals, the unstable molecules your body produces during normal metabolism and in response to things like UV light, alcohol and smoke. Healthdirect describes them as substances made by the body and found in food that help protect cells from that damage, and it recommends getting antioxidants from a varied diet of fruit, vegetables, nuts and wholegrains (healthdirect: Antioxidants).

Antioxidant supplements package one or more of these compounds in a concentrated dose. They fall into two broad groups. The first is the classic dietary antioxidants: vitamin C, vitamin E, beta-carotene and the mineral selenium. The second is a newer group of compounds people take for healthy ageing and cellular support, including glutathione, resveratrol, pterostilbene, grape seed extract and coenzyme Q10.

The evidence is uneven, and it pays to know where it is strong and where it is thin before you spend money:

• Isolated high-dose vitamins have a mixed record. A Cochrane review led by Goran Bjelakovic pooled 78 randomised trials with 296,707 participants testing beta-carotene, vitamin A, vitamin C, vitamin E and selenium pills, and found no overall survival benefit; in the trials with a low risk of bias, the beta-carotene and vitamin E arms leaned slightly the wrong way (Bjelakovic et al., Cochrane Database of Systematic Reviews, 2012). That is one reason none of the products in this list is a high-dose beta-carotene or vitamin E pill.
• Oral glutathione has direct human data. In a six-month randomised, placebo-controlled trial of 54 non-smoking adults at Penn State, 250mg or 1000mg of oral glutathione a day raised glutathione stores in the blood; at the higher dose, levels in red cells, plasma and lymphocytes rose by 30 to 35 per cent at six months, and they returned to baseline a month after people stopped (Richie et al., European Journal of Nutrition, 2015).
• Delivery format has been studied too. A separate trial found that oral liposomal glutathione also elevated body stores of glutathione and markers of immune function (Sinha et al., European Journal of Clinical Nutrition, 2018).

The practical reading: food comes first, and if you add a supplement, choose one where the dose on the label matches the doses that have been tested in people. The US National Center for Complementary and Integrative Health makes the same point in its plain-language summary of antioxidant supplements (NCCIH: Antioxidant Supplements).

How We Evaluated these antioxidant supplements

We did not lab-test any of these products. Every figure comes from the product label, the seller’s page or the published studies linked in this guide. Eternal Elixir makes two of the seven products, and we weighted the criteria below before ranking:

• Dose of the main antioxidant against human-trial doses (30%). A serve that reaches the amounts used in published human studies scores higher than a sprinkle of many ingredients.
• Cost per daily serve and per milligram of the main active, in AUD (25%). Shelf price divided by serves at the label’s own directions.
• Australian availability and shipping (20%). How easily you can buy it from an Australian seller today, without waiting on an overseas parcel.
• Label clarity (15%). Whether the label states the exact form and amount of each active per serve.
• Range for stacking (10%). Whether the same seller offers matching single-ingredient products for people who want to combine them.

On these weights the Eternal Elixir glutathione ranks first on dose and on cost per milligram of glutathione. Blackmores Bio C 1000 wins on daily price, and Swisse Grape Seed is the lowest-cost polyphenol option. Each of those true, narrower wins is shown against the product below.

The seven reviews below follow the table order. Each one lists the label dose, the price we found, what the product does well and where it falls short.

#1. Eternal Elixir Reduced L-Glutathione 2000mg: Best overall

Eternal Elixir Reduced L-Glutathione 2000mg is a 90-capsule bottle of reduced glutathione, the form your cells use directly. The label serve is two capsules, which gives 2000mg of glutathione and 45 serves per bottle. At $39.99 that is $0.89 a day, or about $0.44 for every 1000mg of glutathione.

Glutathione is the antioxidant your own body makes in the largest amounts, which is why it is often called the master antioxidant. The Penn State trial above used 250mg and 1000mg a day and saw the bigger, faster rise at 1000mg. A 2000mg serve sits above both trial doses, and you can split it into one capsule twice a day if you prefer to stay at 1000mg per dose. Our glutathione dosage guide for Australians walks through how people usually time it and how long to give it before judging results.

Because it ships from Sydney within 24 hours, there is no wait on an overseas parcel or a customs hold. Every batch is third-party lab tested, and the certificate of analysis is available on request. The Eternal Elixir range also covers resveratrol, pterostilbene and NMN, so if you later want to build a healthy-ageing stack you can do it from one Australian order.

Key specs: 2000mg reduced L-glutathione per 2-capsule serve · 90 capsules · 45 serves · $39.99 · $0.89 per serve

Pros:

• Most glutathione per serve of any product in this comparison
• Lowest cost per 1000mg of glutathione in this list (about $0.44)
• Single-ingredient label, so you know exactly what each capsule holds
• Ships from Sydney within 24h, with a 30-day money-back guarantee and Afterpay

Cons:

• Covers one antioxidant, so it will not replace vitamin C from food or a multivitamin
• Two capsules per full serve, which some people find a lot to swallow in one go
• Not the cheapest daily serve in the list (vitamin C and grape seed cost less per day)

Best for: anyone who wants a meaningful daily dose of glutathione itself at the lowest cost per milligram in Australia.

Where to get it: View Reduced L-Glutathione 2000mg on Eternal Elixir ($39.99, free shipping on orders over $100).

#2. BioCeuticals AntiOx Excel: Best for a broad multi-antioxidant formula

BioCeuticals AntiOx Excel is a practitioner-style pharmacy formula that puts many antioxidants into one capsule. Per capsule the label lists giant knotweed standardised to 112.5mg trans-resveratrol, grape seed standardised to 57.4mg procyanidins, milk thistle standardised to 15mg silybin, tomato lycopene, carotenoids from dunaliella, bilberry anthocyanosides, 50mg reduced glutathione and 300 micrograms of retinol acetate, among other nutrients. The direction is one capsule a day.

At $44.99 for 60 capsules from Chemist Warehouse (RRP $51.95), a daily serve costs $0.75. That is good value if you want coverage across several antioxidant families without juggling bottles. The trade-off is depth: each ingredient sits well below the amounts used when it is studied on its own. The 50mg of glutathione, for example, is a fifth of the lowest dose in the Penn State trial.

The label also carries warnings to check: it contains selenium and vitamin A, it is for adults only, and it is not for use in pregnancy or while breastfeeding. If you already take a multivitamin, add up your vitamin A and selenium before doubling up.

Pros:

• Several antioxidant families in a single daily capsule
• Standardised extracts, with each active amount stated on the label
• Widely stocked by Australian pharmacies

Cons:

• Small amounts of each ingredient compared with single-ingredient products
• Contains vitamin A and selenium, so it can stack up with a multivitamin
• Not suitable in pregnancy or breastfeeding, per the label

Best for: people who want a one-capsule antioxidant blend and are happy with modest amounts of each ingredient.

#3. Eternal Elixir Trans-Resveratrol 1200mg: Best for a high-dose stilbene in a healthy-ageing stack

Eternal Elixir Trans-Resveratrol 1200mg holds 600mg of trans-resveratrol per capsule, 90 capsules to a bottle. The suggested serve is two capsules, so you get 1200mg a day and 45 serves for $59.99, or $1.33 per serve.

Resveratrol is the polyphenol found in grape skins and Japanese knotweed, and it is the antioxidant most often paired with NMN in longevity routines. Compared with the 112.5mg in the BioCeuticals blend above, a serve here carries more than ten times as much trans-resveratrol, which is why we rank it ahead of the multi-formulas for people who want resveratrol specifically. If you are deciding between resveratrol and its close relative pterostilbene, our pterostilbene vs resveratrol comparison sets the two side by side, and the resveratrol dosage guide covers timing and taking it with food.

Prefer pterostilbene? Eternal Elixir Trans-Pterostilbene 500mg is $64.99 for 90 capsules at one capsule a serve. If you would rather take NMN and resveratrol together, the Vitasolutions NMN & Resveratrol 1100mg combo sold by Eternal Elixir is $49.99 for 60 capsules (30 two-capsule serves).

Pros:

• 1200mg trans-resveratrol per serve, the highest resveratrol dose in this list
• Pairs with Eternal Elixir NMN 500mg in one Australian order
• Ships from Sydney within 24h

Cons:

• $1.33 per serve, the highest daily cost in this comparison
• Resveratrol is a single antioxidant family, so it is a stack component rather than an all-rounder

Best for: people building a longevity routine who want a high, clearly labelled dose of trans-resveratrol. Order Trans-Resveratrol 1200mg.

#4. Swisse Grape Seed 14,250mg: Best for low-cost grape seed polyphenols

Swisse Grape Seed 14,250mg comes as 180 tablets. Each tablet contains grape seed extract equivalent to 14.25g of dry seed, and the adult direction is two tablets a day with or after a meal. That gives 90 serves for $26.99 at Chemist Warehouse (RRP $58.99), or $0.30 a day.

Grape seed extract is a concentrated source of proanthocyanidins, the same polyphenol family that gives red grapes and red wine their colour. Swisse markets this product for skin health, and it is suitable for vegans and vegetarians. Its “14,250mg” headline is a dry-seed equivalent, which describes how much raw seed went into the extract, so it should not be read as 14g of active compounds in each tablet. The page we read did not give a standardised procyanidin figure per tablet.

Pros:

• Lowest price per serve among the polyphenol products here ($0.30)
• Vegan and vegetarian friendly
• Large 180-tablet pack lasts three months at the label dose

Cons:

• Dry-seed equivalent on the label rather than a standardised active amount
• Two tablets a day, taken with food
• Single ingredient, with no glutathione, vitamin C or CoQ10

Best for: budget-minded shoppers who want a daily polyphenol and like the skin-health angle.

#5. Blackmores CoQ10 150mg: Best for a single daily CoQ10 capsule

Blackmores CoQ10 150mg gives 150mg of ubidecarenone (coenzyme Q10) per capsule, one capsule a day with a meal. A 30-capsule pack is $26.99 at Chemist Warehouse (RRP $31.00), so a daily serve is $0.90.

CoQ10 is a fat-soluble compound your cells use to make energy in the mitochondria, and it also acts as an antioxidant in cell membranes. Taking it with a meal that contains some fat is the usual advice, and the label says so. People who take cholesterol-lowering medicine often ask about CoQ10; that is a conversation to have with your GP or pharmacist, since this guide does not cover medicines.

The label lists soy and sulfites, which matters if you avoid either. A one-month pack also means more frequent reordering than the larger bottles in this list.

Pros:

• One capsule a day at a common 150mg dose
• Major Australian brand, stocked in most pharmacies
• Simple single-ingredient label

Cons:

• Small 30-capsule pack, so you reorder monthly
• Contains soy and sulfites
• $0.90 per serve, about the same daily cost as 2000mg of glutathione

Best for: people who want CoQ10 on its own in a single daily capsule.

#6. Blackmores Bio C 1000: Lowest price per serve in this list

Blackmores Bio C 1000 delivers 1000mg of vitamin C per tablet from three forms (ascorbic acid, calcium ascorbate and sodium ascorbate), plus citrus bioflavonoids, rutoside, hesperidin, rosehip and acerola. The direction is one tablet a day with food. At $21.99 for 150 tablets from Chemist Warehouse (RRP $48.99), each serve costs about $0.15.

Vitamin C is the water-soluble antioxidant most people already know, and it is easy to get from food: an orange, a capsicum or a handful of strawberries covers the daily needs of most adults. A 1000mg tablet goes well beyond that. Its appeal is price and familiarity. For a closer look at how vitamin C and glutathione differ in what they do, see our glutathione vs vitamin C comparison.

Pros:

• Lowest price per serve of the seven products (about $0.15)
• 150 tablets, five months at one a day
• Includes buffered forms, which some people find gentler on the stomach

Cons:

• Easy to cover vitamin C from food, so the extra may add little for many people
• Contains sulfites
• No glutathione, stilbenes or CoQ10

Best for: anyone who wants the cheapest daily antioxidant and prefers a familiar vitamin.

#7. BioCeuticals Glutathione: Best for low-dose pharmacy glutathione

BioCeuticals Glutathione contains 250mg of reduced glutathione per capsule, with directions of one capsule once or twice a day. The 60-capsule pack is $47.99 at Chemist Warehouse (RRP $57.95). At one capsule a day a serve costs $0.80; at two capsules it is $1.60.

The 250mg capsule matches the lower dose in the Penn State trial, which is a fair starting point. The cost per milligram is the catch: 1000mg of glutathione from these capsules costs about $3.20, roughly seven times the cost from the Eternal Elixir 2000mg bottle. It is vegan and widely stocked, which suits people who prefer to buy from a pharmacy counter. If you are weighing reduced glutathione against liposomal formats as well, our liposomal vs reduced glutathione guide compares the two.

Pros:

• Reduced glutathione at a trial-matched 250mg per capsule
• Suitable for vegans
• Easy to find in Australian pharmacies

Cons:

• About $3.20 per 1000mg of glutathione, the highest per-milligram cost here
• Only 30 days at two capsules a day
• Not for use in pregnancy or breastfeeding, per the label

Best for: people who want a small glutathione dose and prefer a pharmacy brand.

Antioxidant per dollar: what $10 buys you

Price per serve hides one useful question: how much of the named antioxidant does each dollar buy? We worked it out from the same label and price data used in the table above. This is our own calculation, rounded to the nearest whole number.

Read across a single row only. A milligram of vitamin C and a milligram of glutathione do different jobs, so the useful comparison is within each antioxidant: for glutathione, $10 buys about seven times more from the Eternal Elixir bottle than from the 250mg pharmacy capsule, and about 34 times more than the glutathione in the multi-formula.

Which antioxidant supplement fits your goal?

Most people searching for antioxidant supplements have a reason in mind. Match the product to that reason rather than to the biggest number on the front of the box.

• General cellular support and the “master antioxidant”: reduced glutathione at a trial-level dose. The Eternal Elixir 2000mg capsules are the most cost-effective way to get there in this list.
• Skin and glow routines: glutathione and grape seed are the two people ask about most. Our skin supplements comparison covers the wider category, including hydration-focused options.
• Healthy ageing and longevity stacks: trans-resveratrol or pterostilbene, usually alongside NMN. The longevity supplements comparison prices the full stack by daily cost.
• Lowest daily spend: vitamin C. Blackmores Bio C 1000 costs about $0.15 a day, though food covers most people’s needs.
• One-capsule convenience: a blend such as BioCeuticals AntiOx Excel, accepting smaller amounts of each ingredient.

Safety, timing and who should check first

Antioxidant supplements are generally well tolerated at label doses, but “more” is not automatically better. The Cochrane review mentioned earlier is the reason most nutrition bodies steer people away from high-dose beta-carotene and vitamin E pills in particular. A few practical points:

• Read the vitamin A and selenium totals if you combine a blend with a multivitamin, since both can add up.
• Take fat-soluble actives with a meal. CoQ10 and the carotenoids in blends absorb better with some dietary fat.
• Pregnancy, breastfeeding and prescription medicines: two of the labels above carry pregnancy and breastfeeding warnings. If either applies, or you take regular medicines, check with your GP or pharmacist before starting.
• Give it time. In the Penn State glutathione trial, blood levels were measured at one, three and six months, and they fell back after people stopped. Glutathione side effects and tolerability are covered in our glutathione side effects guide.

See your GP if you have symptoms that persist. A supplement may support your routine; it does not replace a diagnosis.

Frequently asked questions about antioxidant supplements

What is the best antioxidant supplement in Australia?

Our pick is Eternal Elixir Reduced L-Glutathione 2000mg. Each two-capsule serve gives 2000mg of reduced glutathione for $0.89, about $0.44 per 1000mg, the most glutathione per serve and the lowest cost per milligram in this comparison. Blackmores Bio C 1000 is the cheapest daily serve at about $0.15.

Which vitamin is the most antioxidant?

Vitamin C and vitamin E are the two vitamins best known for antioxidant activity. Vitamin C works in the watery parts of the body and vitamin E in fats and cell membranes. Most adults can meet their vitamin C needs from fruit and vegetables, and nuts and seeds supply vitamin E.

Are antioxidant supplements actually effective?

It depends on the antioxidant and the dose. A Cochrane review of 78 trials found no overall survival benefit from isolated beta-carotene, vitamin A, vitamin C, vitamin E and selenium pills. Oral glutathione has more specific data: a six-month trial found 250mg or 1000mg a day raised the body’s glutathione stores.

What are the big 3 antioxidants?

Nutrition sources usually name vitamin C, vitamin E and beta-carotene as the three main dietary antioxidants, with selenium often added as a fourth. Your body also makes its own antioxidants, and the most abundant of them is glutathione.

Can you take antioxidant supplements every day?

Most antioxidant supplements are designed for daily use at the label dose. Stick to the directions, avoid stacking several products that contain the same vitamin, and check with your GP or pharmacist first if you are pregnant, breastfeeding or take regular medicines.

How much do antioxidant supplements cost in Australia?

In this comparison a daily serve ranged from about $0.15 for a 1000mg vitamin C tablet to $1.33 for 1200mg of trans-resveratrol. A 2000mg serve of reduced glutathione cost $0.89, and a 150mg CoQ10 capsule $0.90, based on prices checked on October 9, 2026.

Is glutathione better than vitamin C as an antioxidant supplement?

They do different jobs. Vitamin C is easy to get from food and costs little as a tablet. Glutathione is the antioxidant your cells make in the largest amounts, and supplementing it at 250mg to 1000mg a day raised body stores in a six-month human trial. Many people who take glutathione also eat plenty of vitamin C foods.

The verdict on antioxidant supplements

For most Australians who want one antioxidant supplement with a dose that matches the human research, Eternal Elixir Reduced L-Glutathione 2000mg is our pick: 2000mg of reduced glutathione per serve for $0.89 a day, shipped from Sydney. If your focus is a healthy-ageing stack, add Eternal Elixir Trans-Resveratrol 1200mg. If you want the lowest daily cost, Blackmores Bio C 1000 is about $0.15 a day; if you want a blend in one capsule, BioCeuticals AntiOx Excel covers the most ingredients; and Swisse Grape Seed is the lowest-cost polyphenol. Whatever you choose, keep the colourful food on your plate as the foundation, because that is where the strongest evidence for antioxidants sits.