Alpha-ketoglutarate, or AKG, is a key molecule in the Krebs cycle, the engine that powers every cell in your body. As we age, natural AKG levels decline, which can slow cellular repair, reduce energy, and accelerate the visible and internal signs of aging. Supplementing with AKG has become a cornerstone strategy for those focused on longevity, mitochondrial health, and maintaining metabolic function well into their later years.
I’m Mohammad — the founder and writer behind ProteinJug. I’ve spent over a decade analyzing supplement research, ingredient sourcing, and bioavailability technologies, with a particular focus on the metabolic and longevity science behind AKG formulations.
After comparing the top products on the market, these are the most effective options available today in the best akg supplement category, ranked by quality, delivery method, and value.
How To Choose The Best AKG Supplement
Not all AKG supplements work the same way in your body. The delivery system, the form of AKG, and the supporting ingredients all determine whether you’re getting real cellular support or simply expensive urine. Focus on these three factors before anything else.
Delivery Method: Standard vs. Liposomal vs. Enteric Coated
Standard capsules often break down too early in the stomach, where stomach acid can degrade AKG before it reaches your small intestine for absorption. Liposomal technology wraps the AKG molecule in a phospholipid layer, protecting it from gastric acid and improving bioavailability dramatically. Enteric-coated capsules delay release until the capsule reaches the small intestine, also improving absorption. For serious results, choose a liposomal or enteric-coated formula.
Form of AKG: Ca-AKG vs. AAKG vs. Pure AKG
Calcium Alpha-Ketoglutarate (Ca-AKG) is the form most often used in longevity research because it combines AKG with calcium, supporting bone health while delivering the anti-aging benefits. AAKG (Arginine Alpha-Ketoglutarate) is popular among athletes for nitric oxide production and muscle pumps, but it’s not the same molecule for cellular aging. Pure AKG without a mineral carrier has lower stability and bioavailability. Always verify which form the supplement uses.
Third-Party Testing and Manufacturing Standards
A quality AKG supplement is manufactured in a GMP-compliant facility within the USA or Europe and undergoes independent third-party lab testing for purity and potency. Brands that publish their lab results publicly demonstrate transparency. Avoid products that list proprietary blends, low dose counts, or vague sourcing language.
Quick Comparison
On smaller screens, swipe sideways to see the full table.
| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Renue By Science CA AKG | Premium Liposomal | Longevity & high absorption | Liposomal, 300mg Ca-AKG | Amazon |
| Codeage Liposomal Calcium AKG | Mid-Range Liposomal | Dairy-free & vegan users | Liposomal, 1 capsule per serving | Amazon |
| LongJuvity Ca-AKG | Mid-Range Enteric | Enteric-coated absorption | Enteric-coated, 1000mg per serving | Amazon |
| Superior Formulas Liposomal AKG | Mid-Range Liposomal | Physician-formulated purity | Liposomal, 1100mg per serving | Amazon |
| ProHealth Ca-AKG | Budget-Friendly | Budget-friendly standard option | Standard, 1000mg per 2-capsule serving | Amazon |
| Nextdia Liposomal Ca-AKG + D3 & K2 | Premium Multi-Ingredient | Bone health with extra nutrients | Liposomal, 1500mg with D3, K2, Mg | Amazon |
| AJAXERRUE Liposomal Ca-AKG | Premium Liposomal | High potency & age defense | Liposomal, 1500mg per serving | Amazon |
In‑Depth Reviews
1. Renue By Science CA AKG Supplement
Renue By Science has engineered their CA AKG with a sustained-release liposomal delivery system that protects the molecule until it reaches the small intestine. At 300mg of Ca-AKG per capsule, this is a lower-dose-per-capsule formula, but the liposomal encapsulation ensures a much higher percentage of that dose actually enters your bloodstream. The brand publishes third-party lab results publicly, and the capsules are allergen-free, non-GMO, and manufactured in an FDA-registered, GMP-compliant facility. For longevity purists who care about absorption data, this is the cleanest option available.
The science backing Renue’s approach is solid: liposomal Ca-AKG bypasses the harsh acidic environment of the stomach, preventing degradation and maximizing bioavailability. The sustained-release profile also means a steady supply of AKG to your cells over several hours, rather than a single spike followed by rapid clearance. For users tracking biomarkers like DNA methylation or inflammatory cytokine levels, this precision delivery matters far more than raw milligram numbers. The company’s focus on lifespan extension research, including citing studies on healthspan in mice, gives this product a strong academic foundation.
One important note for dosing: the 300mg per capsule serving is lower than many competitors, so advanced users may need to take multiple capsules to match the total milligram count of other formulas. That said, the superior absorption likely means you need less to achieve the same or better cellular effect. The bottle provides 90 capsules, and the price point places it firmly in the premium tier. For anyone serious about mitochondrial function and age-related methylation support, this is the formulation to beat.
Why it’s great
- Sustained-release liposomal delivery for superior absorption.
- Third-party tested with publicly available lab reports.
- Allergen-free, non-GMO, and made in a GMP/FDA-registered facility.
Good to know
- Lower per-capsule dose (300mg) may require multiple capsules per serving.
- Premium price tier, not a budget option.
2. Nextdia Liposomal Calcium AKG Supplement with Vitamin D3 & K2
Nextdia goes beyond a simple AKG formulation by stacking 1500mg of liposomal calcium alpha-ketoglutarate with Vitamin D3, K2, magnesium glycinate, boron, probiotics, and Vitamin C. This is a comprehensive bone health and metabolic support complex, not just a standalone AKG supplement. The inclusion of D3 and K2 is particularly smart — Vitamin D3 improves calcium absorption from the gut, while K2 activates proteins that direct calcium into bone tissue rather than soft tissues. For women concerned about age-related bone density loss, this stack is far more complete than plain Ca-AKG alone.
The liposomal delivery uses sunflower lecithin to form protective phospholipid vesicles around the AKG and calcium, and the addition of five probiotic strains is designed to support gut health and further improve mineral absorption. The extended-release softgels are soy-free, gluten-free, and non-GMO, with a 2-month supply per bottle. The manufacturer is registered and certified, with testing for purity and potency. This formula is ideal for users who want to optimize both longevity pathways and bone mineralization in a single daily dose.
The downside is complexity for those who prefer a minimal, single-molecule supplement. With so many active ingredients, it’s harder to isolate the effects of AKG specifically. Additionally, some users may find the softgel size larger than standard capsules. But for those already taking separate D3 and K2 supplements, this stack consolidates everything into one bottle, potentially saving money and regimen complexity. It’s a premium product priced within reach of the mid-range buyer, offering genuine value for the multi-nutrient approach.
Why it’s great
- Multi-nutrient stack includes D3, K2, magnesium, boron, and probiotics.
- Liposomal delivery plus extended-release softgels for higher absorption.
- 2-month supply per bottle, good value for a complete bone/metabolic formula.
Good to know
- Complex formula makes it hard to isolate the effects of AKG alone.
- Softgels are larger than standard capsules.
3. AJAXERRUE Liposomal Calcium AKG Supplement 1500mg
AJAXERRUE delivers a high-dose liposomal Ca-AKG formula with 1500mg per serving — among the highest milligram counts in this roundup. The liposomal technology uses a phospholipid protective layer that shields the AKG from gastric acid, dramatically improving the amount that reaches systemic circulation. The brand specifically notes that conventional pills and powders show limited AKG absorption, which is an accurate assessment of the category problem. For users who want a single-capsule high dose without stacking multiple products, this is a straightforward solution.
The formula is soy-free, gluten-free, and dairy-free, and the capsules are unflavored. The product benefits listed include energy management, immune support, and metabolism improvement, all supported by AKG’s role in the Krebs cycle and AMPK pathway activation. The 120-count bottle provides a 2-month supply at the standard serving size. The brand is less established than some competitors, but the formulation itself is clean and focused on the key variables that matter: dose, liposomal delivery, and minimal excipients.
The potential trade-off is that the brand AJAXERRUE is relatively new in the longevity space, so long-term reputation data is limited. Third-party testing is mentioned but not as prominently documented as with Renue or Codeage. Some users might prefer a more established company with a longer track record. However, for those prioritizing high milligram content and liposomal absorption in a single-serve dose, this is a strong contender, especially at the premium end of the mid-range price spectrum.
Why it’s great
- High 1500mg liposomal Ca-AKG per serving in a single capsule.
- Liposomal delivery for enhanced bioavailability.
- 120-count bottle provides a solid 2-month supply.
Good to know
- Relatively new brand with less long-term reputation data.
- Third-party testing documentation less prominent than competitors.
4. Codeage Liposomal Calcium AKG Supplement
Codeage offers a liposomal calcium AKG formula designed for convenience — just one capsule per serving provides a 2-month supply per bottle. The liposomal delivery uses non-GMO sunflower oil phospholipids to create a protective complex around the Ca-AKG, which improves stability and absorption in the GI tract. This is a welcome approach because many AKG supplements require 2–4 capsules daily, which adds up quickly in cost and pill burden. For daily supplement takers who prefer simplicity, Codeage solves that problem elegantly.
The formula is vegan, non-GMO, dairy-free, gluten-free, and soy-free, making it one of the most diet-friendly options in the category. Manufactured in the USA in a cGMP-certified facility with global ingredients, Codeage also emphasizes quality control. The product dimensions are compact at 3.75 inches cubed, and the bottle feels sturdy. For users with multiple dietary restrictions, this is a safe choice that does not compromise on liposomal delivery. The brand has a solid reputation in the supplement space with a loyal customer base.
The main limitation is that the total AKG content per capsule is lower than some competitors, so users who want a very high dose may need to increase their serving size. The label does not specify the exact milligram amount of Ca-AKG per capsule in the product metadata, which is a small transparency gap. However, for the typical user aiming for a moderate daily maintenance dose of AKG, this delivers excellent value and simplicity. It sits comfortably in the mid-range price tier with a strong formulation.
Why it’s great
- Convenient single-capsule serving provides a 2-month supply.
- Liposomal delivery with non-GMO sunflower phospholipids.
- Vegan and free of major allergens including dairy, soy, and gluten.
Good to know
- Total AKG dose per capsule is not explicitly stated in product metadata.
- Higher-dose users may need multiple capsules per serving.
5. LongJuvity Calcium Alpha-Ketoglutarate Time Release AKG
LongJuvity differentiates itself with an enteric-coated capsule that resists stomach acid and releases the Ca-AKG in the small intestine for optimal absorption. This is a smart engineering choice: the enteric coating is essentially a delayed-release mechanism that prevents degradation in the harsh acidic environment of the stomach. The formula also includes piperine, a black pepper extract that inhibits certain enzymes and transporters, further enhancing bioavailability. For users who want absorption technology without the higher cost of liposomal delivery, this is a practical middle ground.
Each serving delivers 1000mg of Ca-AKG, a solid mid-range dose that supports cell repair, detoxification, and gene signaling pathways associated with healthy aging. The brand targets athletes and active individuals as well as longevity seekers, citing AKG’s role in muscle recovery and prevention of muscle loss. The capsules are manufactured in a GMP-compliant, ISO-certified facility in the USA, with independently lab-tested ingredients. The unflavored capsules are easy to swallow and come in a 60-count bottle, which at one serving per day provides a 2-month supply.
The enteric coating is a smart feature, but it is not quite as advanced as true liposomal encapsulation in terms of absorption efficiency. Some research suggests that liposomal delivery provides even higher bioavailability than enteric coating because the phospholipid layer actively fuses with cell membranes. Also, the inclusion of piperine, while beneficial for absorption, may be an extra ingredient that some purists prefer to avoid. Overall, this is a strong mid-range option that delivers good absorption technology at a fair price point.
Why it’s great
- Enteric coating protects AKG from stomach acid for improved absorption.
- Includes piperine to further enhance bioavailability.
- 1000mg per serving, good mid-range dose for general wellness.
Good to know
- Enteric coating is less advanced than liposomal delivery technology.
- Piperine may be an unwanted extra ingredient for some users.
6. Superior Formulas Liposomal Alpha-Ketoglutarate (AKG) 1100mg
Superior Formulas offers a liposomal AKG supplement at 1100mg per serving, divided into two 550mg vegetarian capsules. The formulation is physician-developed, which is a meaningful credential in a category where many products are simply rebranded generic ingredients. The liposomal delivery is intended to increase the stability of AKG during digestion, ensuring that the molecule reaches the cells intact. The product is non-GMO, gluten-free, and manufactured in a GMP-certified facility, which meets the baseline quality standards that knowledgeable buyers demand.
The serving size of two capsules per day delivers a solid 1100mg of AKG, which is a reasonable dose for supporting the Krebs cycle and ATP production. The formula avoids unnecessary fillers and binders, keeping the ingredient list clean. For users who prefer a liposomal product but want a moderate dose without the high milligram counts of some competitors, this hits a nice balance. The 60-count bottle provides a 30-day supply at the standard serving size, which is standard for the category.
The main considerations are that the product was first available in May 2025, meaning it is relatively new on the market with limited long-term user reviews and track record. Additionally, the liposomal claim is less detailed than some competitors — there is no information provided about the specific phospholipid source (e.g., sunflower lecithin vs. soy lecithin). For early adopters and those who trust physician-formulated products, this is a clean, effective option at a reasonable mid-range price.
Why it’s great
- Physician-formulated with a focus on cellular energy and healthy aging.
- Liposomal delivery for improved bioavailability.
- Clean formula with no unnecessary fillers, non-GMO and gluten-free.
Good to know
- Relatively new product (May 2025) with limited long-term user feedback.
- Liposomal source (phospholipid type) is not specified.
7. ProHealth Ca AKG Supplement (Alpha Ketoglutarate) 1000mg
ProHealth has been manufacturing supplements since 1988, and their Ca-AKG formula is a straightforward, no-frills entry into the category. Each two-capsule serving delivers 1000mg of calcium alpha-ketoglutarate, and the product is triple-tested for purity and potency with third-party lab results published online. For budget-conscious buyers who prioritize the transparency of a long-standing brand, this is the most accessible option in the roundup. The formula activates the AMPK pathway, which is central to cellular energy balance and mitochondrial function.
The key trade-off is the delivery method — this is a standard capsule, not liposomal or enteric-coated. This means a significant portion of the AKG may be degraded by stomach acid before it can be absorbed. However, ProHealth’s long track record and commitment to independent testing provide a baseline of trust that many newer brands lack. The product is manufactured in the USA and the company has been in the wellness space for over 30 years. For someone new to AKG and wanting to test the waters without a big investment, this is a reasonable starting point.
The 60-capsule bottle lasts 30 days at the recommended 2-capsule serving. The product is a good entry-level choice, but serious longevity enthusiasts will likely want to upgrade to a liposomal or enteric-coated formulation for better absorption. ProHealth also markets this as a Christmas gift option, which demonstrates the broad consumer demographics they target. For pure value and brand history, this earns its spot, but the absorption technology gap is real and should be weighed against user goals.
Why it’s great
- Long-standing brand since 1988 with a reputation for quality.
- Triple-tested for purity with publicly available third-party lab results.
- Most accessible price point in the roundup.
Good to know
- Standard capsules, no liposomal or enteric coating for absorption enhancement.
- Requires 2 capsules per serving for 1000mg dose.
FAQ
How much AKG should I take per day for anti-aging benefits?
Is liposomal AKG really worth the extra cost compared to standard capsules?
Can I take AKG with other supplements like NMN, resveratrol, or NAD+ precursors?
Final Thoughts: The Verdict
For most users, the best akg supplement winner is the Renue By Science CA AKG because it combines true sustained-release liposomal delivery with rigorous third-party testing and a research-backed approach to mitochondrial health and DNA methylation. If you want a bone-health stack with extra nutrients, grab the Nextdia Liposomal Ca-AKG with D3 & K2. And for a clean, convenient single-capsule daily dose, nothing beats the Codeage Liposomal Calcium AKG.







