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LifeTabs Men's Formula

Metabolic · Tablet · 30 portioner#15 / 18 in Metabolic
5.0
Overall score · out of 10
5.0
Overall score · out of 10
Dose vs. studies4.0
Transparency7.5
Value4.9
Community6.0
Formulation5.0
Tier 5
Mechanistic / animal / marketing
Only mechanistic studies or marketing claims. No human RCT for this ingredient.
Redaktionellt score, paid $0 No affiliate link Tested by independent lab No public analysintyg Sample received: No
How we scored this product Show the full breakdown
Composite How this 5.0 is built. 0.55 × 4.0 + 0.20 × 7.5 + 0.10 × 4.9 + 0.10 × 6.0 + 0.05 × 5.0 = 5.0 out of 10. Säkerhet caps applied after. 5.0
5.0 composite
Dose vs. studies55%4.0
Transparency20%7.5
Value10%4.9
Community10%6.0
Formulation5%5.0

Bevisning 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. Säkerhet 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.

Read the full method →

Question 1

Does the molecule work?

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.

2 landmark RCTs · US: Dietary ingredient · EU: Permitted as food supplement
Question 2

Is this bottle good?

The specific product: dose, price, transparency, and what buyers report.

Dose vs research
100% av studiedosen
Meets or exceeds the published effective dose
Cost at trial dose
$3.67/day at trial dose
What one effective daily dose actually costs
Transparency
7.5/10 · No public analysintyg
Independent batch testing confirmed
Consumer signals
39 reviews across platforms · 4.2/5 · low confidence
Operational signal only, never used as clinical evidence
Question 3

What's the catch?

Säkerhet flags, transparency gaps, dosing concerns, and recurring buyer complaints.

No public analysintyg
Certificate of Analysis not published
Without a public analysintyg, batch purity and potency cannot be independently verified.
Buyer complaints
Trustpilot: high price point; Trustpilot: limited independent verification
Recurring themes from consumer review platforms.
Redaktionellt verdict

Quick verdict

5.0 / 10
Best for
Full trial dose
Avoid if
No public analysintyg, Premium pricing
Full-dose status
Meets trial dose
Pris/month
$110
COA status
Not public
Biggest caveat
No public Certificate of Analysis.
Nearest alternatives

The numbers

Pris
$110
per bottle · 30 portioner
Dose vs. research
Överensstämmer med studier 100%
of published effective dose
$ / day at studied dose
$3.67
what one effective daily dose costs
$ / g active
$3.67
per gram of active substance
Independently checked

Data verification

Pris
$110
Verified n/a
Dose
100% av studiedosen
Verified n/a
COA status
Not public
Verified n/a
Bevisning grade
D
Per-ingredient breakdown
DCa-AKG
Verified n/a

All product data is checked against original sources. Prices, doses, and testing status are updated when product pages change. Bevisning grades are reviewed when new human RCTs are published. Read how we verify.

What's inside

Ingredient
Dose in this product
Trial dose
Bevisning
Ca-AKG
Krebs-cycle intermediate sold as a longevity supplement. Lifespan results exist in mice; human evidence is a single retrospective, company-funded analysis.
1000 mg 100% av studiedosen
1000 mg
4.2 /5
Medium confidence
39 reviews across 4 platforms (4 sources)
Source diversity: 92%
AmazonRedditTrustpilotiHerb
Praiseinterest in patented Ca-AKG longevity formulaCa-AKG longevity science appeals to buyers
Complaintshigh price pointlimited independent verification
Last checked: 2026-08-07

Consumer signals

4.2 out of 5 across 39 verified reviews on 4 platforms.

Low confidence, small sample

Consumer sentiment compiled from 4 public sources.

mixed sentiment

Praiseinterest in patented Ca-AKG longevity formula
Complaintshigh price pointlimited independent verification
ThemesNo 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

PraiseCa-AKG longevity science appeals to buyers
Complaintsexpensive relative to generic Ca-AKGeffects hard to notice short-term
ThemesRejuvant'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

Praisegeneral iHerb reviewer trust in longevity category
Complaintsproduct not widely stocked/reviewed on iHerb
ThemesRejuvant 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

Praisescientific interest in Ca-AKG lifespan research
Complaintsskepticism about direct-to-consumer marketing claims
Themesr/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.

What others say (unverified)

No external reviews aggregated yet for this product.

Bevisning

Research behind this product

The studies that established the trial dose and evidence grade for each active ingredient in this product. Click through to read the original paper.

Important to know
Ca-AKGLong-term human safety data is essentially absent. Biological-age tests used in marketing are proxies, not proof of slowed aging.

Redaktionellt notes

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.

In plain language

Why this scored this way

This Rejuvant LifeTabs Men's Formula scores 5.0, making it among the lowest-scoring produkter we track. It delivers the full 1000mg trial dose of Ca-AKG with grade D evidence (very early-stage, mostly animal models). At $3.67/day it's among the more expensive options in Metabolic.

What drives the score up

  • Tested by independent lab (transparency 7.5).

What drags it down

  • Dose-evidence score of 4.0 is below average for the site.
  • No public analysintyg available for independent verification.
  • Limited consumer feedback (community score: 6.0).
  • At $3.67/day it's on the expensive side.

Why you'd choose it

  • You want a tested by independent lab product.

Why you might skip it

  • You want a product with a publicly available CoA.
  • You want a cheaper option (this is $3.67/day).
  • You want a higher-scoring product (this scores 5.0).
Go deeper

Where this sits

Varumärke owners

Spot an error?

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 primär sources, and publish any change with a dated note in the version history above. Corrections from brand owners are treated the same as corrections from anyone else: verified before they move.

Request a correction →
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