Best Ca-AKG Supplements in Australia 2026: 8 Calcium Alpha-Ketoglutarate Products Compared

Last updated: September 27, 2026 · Originally published: May 3, 2026 · By Eternal Elixir Editorial

Quick answer: our pick of the best AKG supplements in Australia is Eternal Elixir Ca-AKG 500mg: 500 mg of calcium alpha-ketoglutarate per capsule, 90 capsules per bottle and a one-capsule daily serve, so one bottle lasts 90 days at $59.99 (about $0.67 a day). It ships from Sydney within 24 hours. Eternal Elixir makes this product, so read the comparison below with that in mind. If lowest cost per gram is all you care about, Toniiq Calcium AKG on iHerb AU is cheaper per gram, at three capsules a day.

Below, we compare eight Ca-AKG products you can buy in Australia on price in AUD, dose per capsule, label serve, cost per day and how long a bottle lasts. We also cover what the human research on alpha-ketoglutarate actually shows, which is less than most product pages suggest.

The best Ca-AKG supplements in Australia at a glance

Prices as of Sep 2026, taken from each seller’s product page. “Cost per 1,000 mg” divides the bottle price by the total Ca-AKG in it, so different capsule sizes compare fairly. Eternal Elixir makes Ca-AKG 500mg. It is our pick, and every figure for the other products comes from their own labels and listings.

Numbers 2 to 8 are ordered by cost per 1,000 mg, cheapest first. Label serves range from 300 mg to 1,500 mg a day, so “cost per day” is only comparable if you’d follow each label as written.

What Ca-AKG is, and does AKG really work?

Alpha-ketoglutarate (AKG) is a small molecule your cells make every day as part of the Krebs cycle, the chain of reactions that turns food into cellular energy. Ca-AKG is AKG bound to calcium, which makes a stable powder that fits in a capsule. It is also the form used in the research that made AKG popular as a healthy-ageing supplement.

Here is what that research shows, and what it doesn’t:

• Mice: at the Buck Institute, mice fed CaAKG lived longer, healthier lives with lower levels of inflammatory markers in their blood (Asadi Shahmirzadi and colleagues, 2020). Mouse results often don’t carry over to people.
• People, without a placebo group: a retrospective analysis of 42 self-reported healthy adults who took Rejuvant, a sustained-release product with 1 g of Ca-AKG a day plus vitamin A or D, found their DNA methylation age was an average of 8 years lower after 4 to 10 months (Demidenko and colleagues, 2021). There was no control group, the participants chose to buy the product, and one author sits on the board of the company that sells it. The authors themselves say a placebo-controlled trial is needed.
• People, with a placebo group: that trial, called ABLE, is running in Singapore. It enrolled 120 adults aged 40 to 60 and compares 1 g of sustained-release Ca-AKG with placebo for 6 months, with 3 months of follow-up (Sandalova and colleagues, 2023, Lim and colleagues, 2025). As of September 2026, its results on biological age haven’t been published.

So does AKG really work? The honest answer is that it looks promising in animals, and the only human data on biological age is uncontrolled. Anyone telling you Ca-AKG is proven to slow ageing in people is ahead of the evidence. If you take it, take it as a low-cost bet on a well-studied metabolite, not a sure thing.

How we compared these products

Eternal Elixir makes Ca-AKG 500mg and it is our pick. We don’t claim this list is neutral. What we can promise is that every competitor figure comes from the product’s own label or retailer listing, checked in September 2026, and each product keeps the label it earns. We looked at:

• Ca-AKG per capsule and per label serve, straight from each supplement panel.
• Cost per day at the label serve and cost per 1,000 mg, so you can compare both ways.
• How long a bottle lasts at the label serve.
• Getting it in Australia: AUD pricing, where it ships from, and the free-shipping threshold where the seller publishes one.

#1. Eternal Elixir Ca-AKG 500mg: our pick for a 90-day bottle

Label facts: 500 mg calcium alpha-ketoglutarate per capsule, 90 capsules per bottle, 90 servings. Suggested use is one capsule daily or as directed by your physician. Other ingredients are rice flour and a cellulose capsule.

At $59.99, the bottle works out to about $0.67 a day at the label serve and lasts 90 days, the longest of any bottle here at its own label serve (Renue’s 90-capsule bottle matches it). It ships from Sydney within 24 hours with a 30-day money-back guarantee, Afterpay and free shipping on orders over $100. Two bottles save 10%, three save 15% and five save 20%.

It is not the cheapest per gram. At $1.33 per 1,000 mg, Toniiq, Codeage and Genetix all cost less per gram of Ca-AKG. Where ours wins is one capsule a day from a bottle that lasts three months, priced in AUD and sent from within Australia.

• Suits you if you want a simple one-capsule routine, a bottle that lasts a season, and local dispatch alongside NMN 500mg or Spermidine 10mg on one order.
• Doesn’t suit you if you want the 1 g a day used in the human studies from a single capsule, or you only care about the lowest cost per gram.

#2. Toniiq Calcium AKG: lowest cost per gram

Label facts (iHerb AU): A$46.32 for 120 capsules. The serve is 3 capsules, giving 1,500 mg of 99% calcium alpha-ketoglutarate and 300 mg of calcium, with 40 servings per bottle. Other ingredients are an HPMC capsule, microcrystalline cellulose, silicon dioxide and vegetable magnesium stearate. The label says it’s for healthy adults 18 and over, and not for use in pregnancy or breastfeeding.

At $0.77 per 1,000 mg, it is the cheapest Ca-AKG per gram in this comparison. The catch is the serve: three capsules a day is 1,500 mg, more than the 1 g used in the human studies, and a bottle lasts 40 days. iHerb AU offers free delivery on orders over AU$80.

Where to buy: Toniiq Calcium AKG, 120 capsules, on iHerb AU

• Suits you if cost per gram matters most and you’re happy to take fewer capsules than the label suggests if you want to match the 1 g study dose.
• Doesn’t suit you if you want one capsule a day or local dispatch.

#3. Codeage Sport Liposomal Calcium AKG: most Ca-AKG per capsule

Label facts (iHerb AU): A$47.99 for 60 capsules, 700 mg calcium alpha-ketoglutarate per capsule. The directions are one capsule twice a day with water, with or without food, which is 1,400 mg a day. The capsule includes sunflower lecithin phospholipids for what Codeage calls liposomal delivery. The warnings say pregnant or nursing women, under-18s and people with a medical condition should consult a doctor first.

That works out to $1.14 per 1,000 mg and $1.60 a day at the label serve, with a bottle lasting 30 days. No study has compared a liposomal Ca-AKG capsule with a plain one, so treat the liposomal claim as marketing until one does.

Where to buy: Codeage Sport Liposomal Calcium AKG on iHerb AU

• Suits you if you want the most Ca-AKG in each capsule.
• Doesn’t suit you if you’d rather take one capsule a day or avoid lecithin.

#4. Genetix Nutrition Essentials CA-AKG: cheapest bottle

Label facts (Nutrition Warehouse): A$34.95 for 60 capsules, with 500 mg Ca-AKG and 95 mg calcium per one-capsule serve and 60 servings per tub. Directions are 1 to 2 capsules daily. Other ingredients are rice flour, magnesium stearate, silicon dioxide and a vegan HPMC capsule.

It has the lowest bottle price here and the lowest cost per day at one capsule ($0.58). Per gram it lands at $1.17 per 1,000 mg, close to Codeage. Nutrition Warehouse lists free shipping on orders over $150.

Where to buy: Genetix CA-AKG at Nutrition Warehouse

• Suits you if you want the lowest upfront price from an Australian retailer.
• Doesn’t suit you if you’d rather avoid flow agents like magnesium stearate and silicon dioxide.

#5. ProHealth Longevity Calcium AKG: a plain 1,000 mg serve

Label facts (iHerb AU): A$43.74 for 60 capsules at 500 mg each. The serve is 2 capsules (1,000 mg) in the morning, with or without food, for 30 servings. Other ingredients are plant cellulose and rice flour. The label says not for use in pregnancy or while nursing.

At $1.46 a day, you get the same 1 g daily amount as the human studies in two plain capsules, although those studies used a sustained-release form.

Where to buy: ProHealth Longevity Calcium AKG on iHerb AU

• Suits you if you want a 1,000 mg label serve without doing any maths.
• Doesn’t suit you if you want a bottle that lasts longer than a month.

#6. Naturecan Calcium Alpha-Ketoglutarate: clearest label breakdown

Label facts: A$52.70 for 60 capsules (listed down from $62.00). Two capsules a day give 1,000 mg Ca-AKG, of which 753 mg is alpha-ketoglutaric acid and 205 mg is calcium, for 30 servings. It can be taken with or without food. The only other ingredient is the HPMC capsule, and the page links a certificate of analysis.

That’s $1.76 a day. Orders ship from Naturecan’s UK warehouse, with transit of 7 to 14 business days. Shipping is A$19.99 on orders up to A$99, A$9.99 above that, and free over A$179.

Where to buy: Naturecan Ca-AKG on naturecan.com.au

• Suits you if you want to see exactly how much AKG and calcium you’re getting.
• Doesn’t suit you if you want it within the week or you’re buying one bottle.

#7. Renue by Science CaAKG: smallest dose per capsule

Label facts: US$48.95 for 90 capsules. Each 300 mg capsule of LIPO CaAKG is 60 mg calcium and 240 mg AKG, and the serving is one capsule, giving 90 servings. Prices are in US dollars. Renue says Australian orders ship from its Gold Coast hub, free on orders of US$35 or more.

At one capsule a day it costs US$0.54 a day, but per gram it’s one of the dearer options at US$1.81 per 1,000 mg, before currency conversion.

Where to buy: Renue by Science CaAKG on renuebyscience.com

• Suits you if you want a small 300 mg daily dose.
• Doesn’t suit you if you want AUD pricing or a dose near 1 g without taking several capsules.

#8. DoNotAge Ca-AKG: priced in AUD, dearest per gram

Label facts: A$79.00 for 60 capsules on DoNotAge’s Australian store. Each capsule has 400 mg Ca-AKG and the recommended daily serving is 800 mg (two capsules), so a bottle lasts 30 days. Multi-buy and subscription discounts are offered. DoNotAge ships from distribution centres in the UK, USA and EU and quotes 3 to 7 working days for the rest of the world, with free delivery on orders over $300.

That’s $2.63 a day and $3.29 per 1,000 mg, the highest in this comparison.

Where to buy: DoNotAge Ca-AKG on donotage.org (choose the Australian store)

• Suits you if you already buy other DoNotAge products and want one order.
• Doesn’t suit you if price per gram matters to you.

How much Ca-AKG to take

Label serves in this comparison run from 300 mg to 1,500 mg a day. The human studies used 1 g a day of a sustained-release form. Our label serve is one 500 mg capsule daily, or as directed by your physician, so talk to your doctor before taking more than that.

Ca-AKG is part calcium. Naturecan’s label lists 205 mg of calcium per 1,000 mg of Ca-AKG. If you already take a calcium supplement, count what’s in your Ca-AKG too. Several labels here say with or without food. If a capsule unsettles your stomach, take it with a meal.

Who should not take Ca-AKG

• People who are pregnant or breastfeeding. Several labels here, including Toniiq’s and ProHealth’s, say not to use it then.
• Anyone under 18.
• Anyone taking prescription medicines or managing a medical condition, until they’ve spoken with their doctor.
• Anyone already taking a lot of calcium, because Ca-AKG adds more.

Ca-AKG, plain AKG and AAKG: which one is this?

Three similar names turn up in searches for the best alpha ketoglutarate supplement, and they aren’t the same thing:

• Ca-AKG (calcium alpha-ketoglutarate): the form used in the mouse lifespan study and in the Rejuvant and ABLE human studies. Every product in our list is Ca-AKG.
• Plain AKG (alpha-ketoglutaric acid): sold by brands such as Double Wood and Nutricost. It isn’t the salt the ageing studies used.
• AAKG (arginine alpha-ketoglutarate): a sports supplement sold for workouts, often in pre-workout products. It isn’t a longevity product.

Stacking Ca-AKG with other longevity supplements

Ca-AKG is often taken alongside NAD+ precursors and spermidine. Our NMN 500mg comes in 90-capsule bottles at 500 mg per capsule, one a day, so it lines up with a 90-day Ca-AKG bottle. If you’re choosing between them, read Ca-AKG vs NMN and Ca-AKG vs spermidine. No study has tested these combinations together, so stack them because each one suits you, not because the pair has been shown to do more.

The verdict: best AKG supplement by buyer

• Our pick for most Australians: Eternal Elixir Ca-AKG 500mg. One capsule a day, 90 days per bottle, $0.67 a day, shipped from Sydney.
• Lowest cost per gram: Toniiq Calcium AKG on iHerb AU, if three capsules a day suits you.
• Most Ca-AKG per capsule: Codeage Sport Liposomal Calcium AKG, 700 mg each.
• Cheapest bottle: Genetix Nutrition Essentials at Nutrition Warehouse.
• Smallest daily dose: Renue by Science, 300 mg per capsule.

Frequently asked questions

Which is the best AKG supplement?

Our pick is Eternal Elixir Ca-AKG 500mg: 500 mg per capsule, 90 capsules, one a day, so a bottle lasts 90 days at $59.99. Eternal Elixir makes it. If you only want the lowest cost per gram, Toniiq Calcium AKG on iHerb AU costs less per gram but uses a three-capsule serve.

Add Ca-AKG 500mg to cart · $59.99

Does AKG really work?

In mice, Ca-AKG in the diet was linked to longer, healthier lives. In people, the only biological-age data comes from a retrospective study of 42 adults with no placebo group, who showed an average 8-year drop in DNA methylation age after 4 to 10 months. A placebo-controlled trial of 120 adults (ABLE) is under way, and its main results aren’t published yet. So it’s promising, not proven.

Who should not take Ca-AKG?

People who are pregnant or breastfeeding, anyone under 18, and anyone on prescription medicines or with a medical condition until they’ve checked with their doctor. Ca-AKG also contains calcium, so count it if you already take a calcium supplement.

What is an AKG supplement good for?

AKG is part of the Krebs cycle your cells use to make energy. Ca-AKG supplements are sold to support healthy ageing and cellular energy. The strongest evidence so far is in animals, with one uncontrolled human study on biological age, so expectations should be modest.

How much Ca-AKG should I take?

Follow your product’s label. Label serves in our comparison range from 300 mg to 1,500 mg a day. Ours is one 500 mg capsule daily. The human studies used 1 g a day of a sustained-release form, so speak with your doctor before going above your label.

Add Ca-AKG 500mg to cart · $59.99

Where can I buy Ca-AKG in Australia?

Eternal Elixir sells Ca-AKG 500mg and ships from Sydney. Nutrition Warehouse stocks Genetix CA-AKG, and iHerb AU sells Toniiq, Codeage and ProHealth. Naturecan and DoNotAge ship from overseas warehouses, and Renue by Science ships Australian orders from the Gold Coast.

Is Ca-AKG the same as AAKG?

No. Ca-AKG is calcium alpha-ketoglutarate, the form used in the ageing research. AAKG is arginine alpha-ketoglutarate, a sports supplement usually found in pre-workout products.

More buying guides

• Best NMN supplements in Australia
• Best spermidine supplements in Australia
• Building a longevity supplement stack in Australia
• Healthy-ageing supplements compared
• The full Eternal Elixir range

Sources

• Asadi Shahmirzadi A, Edgar D, Liao CY, et al. Alpha-ketoglutarate, an endogenous metabolite, extends lifespan and compresses morbidity in aging mice. Cell Metab. 2020;32(3):447-456. PubMed 32877690
• Demidenko O, Barardo D, Budovskii V, et al. Rejuvant, a potential life-extending compound formulation with alpha-ketoglutarate and vitamins, conferred an average 8 year reduction in biological aging, after an average of 7 months of use, in the TruAge DNA methylation test. Aging (Albany NY). 2021;13(22):24485-24499. PubMed 34847066
• Sandalova E, Goh J, Lim ZX, et al. Alpha-ketoglutarate supplementation and BiologicaL agE in middle-aged adults (ABLE): intervention study protocol. Geroscience. 2023;45(5):2897-2907. PubMed 37217632
• Lim ZM, Chew YE, Guan L, et al. Recruitment evaluation of a gerotherapeutic randomized controlled trial testing alpha-ketoglutarate in biologically older, middle-aged adults (ABLE). Exp Gerontol. 2025;209:112867. PubMed 40819772
• Product pages checked September 2026: Eternal Elixir Ca-AKG 500mg, Toniiq Calcium AKG, Codeage Sport Liposomal Calcium AKG and ProHealth Longevity Calcium AKG (iHerb AU), Genetix Nutrition Essentials CA-AKG (Nutrition Warehouse), Naturecan Calcium Alpha-Ketoglutarate and its delivery page, Renue by Science CaAKG and its shipping page, DoNotAge Ca-AKG (Australian store).