Label snapshot
What the product contains and what one serving costs, according to our catalog. Label amounts are not personal dose recommendations.
| Ingredient | Amount per serving |
|---|---|
| Ca-AKG | 1,000 mg |
Amounts are per label serving as recorded in the catalog and are not a recommendation. Testing status reflects what the brand lists. Nothing here is medical advice.
These calculations describe our scoring method. They are not a recommended dose or proof of benefit from this product.
Evidence gates dose: the evidence grade sets the ceiling, and the dose decides how much of that ceiling the product reaches. Value = inverse of price-per-trial-dose-day. Community = mean sentiment of external reviews. Safety caps applied after weighting.
This score is our editorial judgment, not a scientific standard. We combine published evidence, dose, price, transparency, and consumer signals into one composite: this is our method, not a peer-reviewed clinical rating. A higher score means a product does better on the factors we weight, not that it is medically proven to work.
This Rejuvant LifeTabs Men's Formula scores 5.0, making it among the lowest-scoring products we track. It delivers 1000mg of Ca-AKG, inside the studied range of 300–2000mg with grade D evidence (very early-stage, mostly animal models). At $3.67/day it's among the more expensive options in Metabolic.
The science behind each active ingredient, independent of which brand sells it.
Krebs-cycle intermediate sold as a longevity supplement. Lifespan results exist in mice; human evidence is a single retrospective, company-funded analysis.
The specific product: dose, price, transparency, and what buyers report.
Safety flags, transparency gaps, dosing concerns, and recurring buyer complaints.
The main ingredients of this product, in plain language.
Krebs-cycle intermediate sold as a longevity supplement. Lifespan results exist in mice; human evidence is a single retrospective, company-funded analysis.
Read about Ca-AKG →Hard numbers and independently checked status. Expand each block for its source.
All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Evidence grades are reviewed when new human RCTs are published. Read how we verify.
4.2 out of 5 across 39 verified reviews on 4 platforms.
Medium confidenceAuto-gathered from public review platforms via pplx_sdk fetch.
mixed sentiment
No independent Trustpilot presence was found for Rejuvant; sentiment is instead drawn from its Amazon customer reviews, which are mixed on value versus cost.
Compiled from Trustpilot listing located during research; verified at build time.
39 reviews · 4.2/5 · mixed sentiment
Rejuvant's LifeTabs average about 4.2/5 on Amazon from a modest review base, with buyers citing interest in the patented Ca-AKG formula but noting a high price versus generic alternatives.
Compiled from Amazon listing located during research; verified at build time.
mixed sentiment
Rejuvant LifeTabs does not have a dedicated, well-reviewed iHerb listing; iHerb's general customer reviews page was the closest verifiable reference found.
Compiled from iHerb listing located during research; verified at build time.
2 threads discussed · mixed sentiment
r/ketoscience discussions on Rejuvant focus on the underlying Ca-AKG longevity research, with mixed views on how well the marketing claims match the science.
Compiled from Reddit listing located during research; verified at build time.
These are consumer sentiment signals. They do not measure whether the product actually works. See our evidence section for that.
No external reviews aggregated yet for this product.
Published evidence, claim checks, regulatory status and what could not be verified.
The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.
Patented controlled-release Ca-AKG (LifeAKG) at over 98% purity, co-developed with Dr. Brian Kennedy (Buck Institute); published peer-reviewed study reported average 8-year biological age reduction over 7 months.
If you are the manufacturer or brand owner of LifeTabs Men's Formula and believe any data on this page is incorrect (wrong dose, wrong ingredient, wrong price, missing certification, outdated status), you can request a correction.
We review every request, verify it against primary sources, and publish any accepted change with a dated note. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.
Request a correction →The next highest-scoring products in Metabolic, same scoring method, same rules.
DoNotAgeStatus as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.
Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.
Double Wood SupplementsStatus as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.
Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.
Nootropics DepotStatus as recorded in the catalog from brand materials; not independently verified by NO1GEVITY.
Editorial score, not proof that this product works. Research-dose calculations are not dosing advice.
