← Alla produkter

Pure TMG

Methyl donor · Powder · 30 portioner#2 / 5 in Methyl donor
6.5
Overall score · out of 10
6.5
Overall score · out of 10
Dose vs. studies4.7
Transparency9.5
Value8.0
Community9.0
Formulation5.0
Tier 3
Ingredient RCT (matching dose)
The ingredient was tested in an RCT at the same dose this product sells.
Redaktionellt score, paid $0 No affiliate link Tested by independent lab Public analysintyg Sample received: No
How we scored this product Show the full breakdown
Composite How this 6.5 is built. 0.55 × 4.7 + 0.20 × 9.5 + 0.10 × 8.0 + 0.10 × 9.0 + 0.05 × 5.0 = 6.5 out of 10. Säkerhet caps applied after. 6.5
6.5 composite
Dose vs. studies55%4.7
Transparency20%9.5
Value10%8.0
Community10%9.0
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.

A methyl donor added to NAD+ formulas as a supporting cofactor, not a headline active.

No landmark RCTs listed · US: Dietary supplement, GRAS · EU: Food supplement, permitted
Question 2

Is this bottle good?

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

Dose vs research
67% av studiedosen
Below the full trial dose
Cost at trial dose
$1.50/day at trial dose
What one effective daily dose actually costs
Transparency
9.5/10 · Public analysintyg (quality: not assessed)
Independent batch testing confirmed
Consumer signals
No consumer signals collected yet
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 major red flags
Public analysintyg, tested by independent lab, dose within range
No safety, transparency, or dose concerns detected at this time.
Redaktionellt verdict

Quick verdict

6.5 / 10
Best for
Public analysintyg
Avoid if
Only 67% av studiedosen
Full-dose status
67% av studiedosen
Pris/month
$30
COA status
Public
Biggest caveat
Dose is 67% of the trial dose.
Nearest alternatives

The numbers

Pris
$30
per bottle · 30 portioner
Dose vs. research
Below trial dose 67%
of published effective dose
$ / day at studied dose
$1.50
what one effective daily dose costs
$ / g active
$0.50
per gram of active substance
Independently checked

Data verification

Pris
$30
Verified n/a
Dose
67% av studiedosen
Verified n/a
COA status
Public
Verified n/a
Bevisning grade
C
Per-ingredient breakdown
CBetaine (TMG)
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
Betaine (TMG)
A methyl donor added to NAD+ formulas as a supporting cofactor, not a headline active.
2000 mg 67% av studiedosen
3000 mg

Consumer signals

Consumer signals gathered from 1 platform.

Low confidence, small sample

Consumer sentiment compiled from 1 public source (Reddit). Small sample size, treat as directional only.

1 threads discussed · positive sentiment

PraiseFrequently paired with NMN/NR to offset methyl-donor depletion. DoNotAge is a common community pick.

Compiled from a Reddit r/longevity listing located during manual research; not independently re-verified against the live page 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, with a source hierarchy

We treat external opinion very differently depending on where it comes from. Tier A is our strongest signal. Tier C is background sentiment only. Tier Rejected is what we excluded, listed openly so you can see what we discarded.

These reviews are aggregated from third-party sources, not written by NO1GEVITY. Each entry shows its source, retrieval date, and whether the source has an affiliate or paid relationship. We do not edit reviews to change their meaning. Disclosure policy.

Tier B

Registered dietitians and physicians, without affiliate ties

Credentialed commentary from clinicians who disclose no paid relationship. Useful as supporting critique but not a substitute for a clinical outcome trial.

Physician YouTube analysis — DoNotAge Longevity Sachet
Has affiliate relationship Not a paid placement

Detailed ingredient walk-through. Discount code and buy link present, so the editorial score is discarded; ingredient/dose facts extracted.

How we use it: Ingredient/dose facts only. Redaktionellt rating rejected.
Tier C

Aggregated sentiment (Trustpilot, Reddit)

Mood indicator only. We never use aggregate stars as evidence of efficacy.

Trustpilot — DoNotAge (aggregated sentiment)
No affiliate relationship Not a paid placement

Aggregate score ≈ 4.3-4.5 / 5. Mood indicator only.

Finding: 4.3-4.5 / 5.
How we use it: Sentiment only. Never used as evidence of efficacy.

Community threads and aggregate ratings

Additional public mentions we located, kept separate from the deep independent reviews above.

Reddit r/longevity
positive

Frequently paired with NMN/NR to offset methyl-donor depletion. DoNotAge is a common community pick.

Read source → Unverified · we received no payment for this listing

Vår sammanfattning

Pure TMG (trimethylglycine/betaine) is DoNotAge's methyl-donor companion product, marketed specifically to be stacked with high-dose NAD+ precursors like Pure NMN to offset methylation demand — a legitimate physiological rationale, since NAD+ precursor metabolism does consume methyl groups. Of every product in this dossier, TMG has the cleanest, most directly dose-matched human evidence: a controlled trial tested exactly the 1000 mg/day dose DoNotAge markets and found it reliably lowers homocysteine, a recognized cardiovascular risk marker. Liver-health and cognitive claims on the product page, however, are not backed by specific cited studies at this dose.

Bevisning, what actually backs this product

Longevity brands rarely test their exact finished product. We separate what's tested from what's inferred.

Strongest evidence tier
Tier 3Ingredient RCT (matching dose)
3 studies mapped
Tier 3Ingredient RCT (matching dose)
Low dose betaine supplementation leads to immediate and long term lowering of plasma homocysteine in healthy men and women
Steenge GR, Verhoef P, Katan MB · 2003 · Tidskrift of Nutrition · 1000 mg/day (and other doses tested) · 6 weeks
ingredient-levelpeer-reviewed
This controlled trial found that 1000 mg/day betaine supplementation raised steady-state serum betaine substantially (from roughly 31 to 52 micromol/L, about 67%) and produced a measurable, lasting reduction in plasma homocysteine, directly matching DoNotAge's marketed dose.
One of the strongest dose-matches in this whole dossier: the exact 1000 mg/day dose DoNotAge markets was directly tested in healthy adults and found effective at lowering homocysteine, a genuine cardiovascular risk marker.
Conflicts: Academic study (Wageningen University); no disclosed link to DoNotAge.
Tier 3Ingredient RCT (matching dose)
Betaine supplementation decreases plasma homocysteine in healthy adult participants: a metaanalys
Various (systematisk översikt authors) · 2013 · peer-reviewed metaanalys (PMC-indexed) · Various, generally up to 6000 mg/day across pooled trials · Varies by pooled trial
ingredient-levelpeer-reviewed
This metaanalys confirmed that betaine supplementation reliably lowers plasma homocysteine by roughly 5-20% in healthy adults across a range of doses, reinforcing the consistency of this specific biomarker effect.
Strengthens confidence in the homocysteine-lowering claim generally, though it does not test cognitive or liver-health claims.
Conflicts: Academic metaanalys.
Tier 4Ingredient RCT (different dose)
Betaine supplementation decreases plasma homocysteine concentrations but does not affect body weight, body composition, or resting energy expenditure
Schwab U, Törrönen A, Toppinen L, et al. · 2002 · American Tidskrift of Clinical Nutrition · 6000 mg/day · 12 weeks
ingredient-levelpeer-reviewed
At a much higher dose than DoNotAge's product (6 grams vs 1 gram), betaine again lowered plasma homocysteine but had no effect on body weight, body composition, or metabolic rate — useful for confirming the homocysteine effect but not for any metabolic/weight claim.
Included to show the homocysteine-lowering effect replicates across a range of doses, but this specific trial used 6x DoNotAge's dose and is not directly dose-matched.
Conflicts: Academic study; no disclosed link to DoNotAge.
Bevisning

Research behind this product

No landmark studies linked yet. See the ingredient pages for the full evidence breakdown.

Claim check, vendor claims vs. our reading of the evidence

Not medical advice. We list the strongest claims made by the brand and check each against traceable evidence.

Supported
“Balances homocysteine, supporting heart health and vascular function”
This is the best-supported claim across the entire DoNotAge product range in this dossier: a dose-matched RCT (Steenge 2003) at exactly 1000 mg/day, backed by additional trials at other doses and a metaanalys, consistently show betaine lowers plasma homocysteine, a recognized cardiovascular risk marker.
Partial support
“Promotes liver health, encouraging detoxification and fat metabolism”
Betaine has documented lipotropic (fat-metabolizing) effects in liver physiology and has been studied in non-alcoholic fatty liver disease contexts in some research, but we did not locate a specific human RCT at DoNotAge's marketed dose directly testing a 'liver health' outcome to fully substantiate this specific framing.
No evidence
“Enhances cognitive function via neurotransmitter production”
No specific cognitive-outcome trial was located in the literature we reviewed for betaine/TMG at this dose; the ingredient's core, well-evidenced role is as a methyl donor affecting homocysteine metabolism, not a direct cognitive enhancer.

Regelverk status

Rules change often. We record when we last verified each row. See the full regulatory timeline →

US
Legal as supplement
Betaine/TMG is a long-established, GRAS-recognized dietary ingredient in the US with no restriction comparable to NMN.
Senast verifierad 2026-08-05
EU
Legal as supplement
Betaine has an established history of use as a food and supplement ingredient in the EU and is not subject to Novel Food restrictions.
Senast verifierad 2026-08-05
UK
Legal
Sold as a standard food supplement ingredient in the UK.
Senast verifierad 2026-08-05
CA
Legal as supplement
Betaine/TMG is commonly licensed as a Natural Health Product ingredient in Canada; specific DoNotAge NPN status was not confirmed.
Senast verifierad 2026-08-05

What we could not verify

We list this openly. If a claim isn't backed by a source we can trace, we'd rather flag it than repeat it.

  • The exact per-capsule milligram amount (as opposed to the marketed 'per portion' total) was not confirmed from the pages we could access, since the product page itself timed out during retrieval and details were sourced from secondary listings.
  • The liver-health and cognitive-function claims could not be traced to specific supporting human trials.
Important to know
Betaine (TMG)Doses under roughly 500 mg/day (as seen in most NAD+ combination produkter) are well below the gram-level doses used in the supporting human trials.

Redaktionellt notes

Companion to NAD+ boosters to offset methyl depletion.

In plain language

Why this scored this way

This DoNotAge Pure TMG scores 6.5, making it a mid-tier product with both strengths and weaknesses. It delivers 2000mg of Betaine (TMG) (67% of the 3000mg trial dose) with grade C evidence (mostly preclinical, limited human data). Transparency is a clear strength (score: 9.5), with third-party testing and a public analysintyg. At $1.50/day it's among the more expensive options in Methyl donor.

What drives the score up

  • Quality transparency of 9.5: tested by independent lab with a public analysintyg.
  • Community score of 9.0 with positive consumer feedback.

What drags it down

  • Dose-evidence score of 4.7 is below average for the site.

Why you'd choose it

  • You want a reasonably priced methyl donor product.
  • You prioritise tested by independent lab produkter with public lab certificates.

Why you might skip it

  • You want better value (this is $1.50/day with a value score of 8.0).
Go deeper

Where this sits

Varumärke owners

Spot an error?

If you are the manufacturer or brand owner of Pure TMG 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 →
Same shelf

Similar produkter

All Methyl donor →

The next highest-scoring produkter in Methyl donor, same scoring method, same rules.

Same maker

Other produkter from DoNotAge

Varumärke profile →