TMG Supplement (Trimethylglycine)
How we scored this product Show the full breakdown
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.
Question 1
Does the molecule work?
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.
Question 2
Is this bottle good?
Is this bottle good?
The specific product: dose, price, transparency, and what buyers report.
Question 3
What's the catch?
What's the catch?
Säkerhet flags, transparency gaps, dosing concerns, and recurring buyer complaints.
Quick verdict
The numbers
Data verification
Per-ingredient breakdown
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
Consumer signals
3.5 out of 5 across 169 verified reviews on 4 platforms.
Medium confidenceConsumer sentiment compiled from 4 public sources.
169 reviews · 3.5/5 · mixed sentiment
Compiled from Trustpilot listing located during research; verified at build time.
positive sentiment
Compiled from Amazon listing located during research; verified at build time.
positive sentiment
Compiled from iHerb listing located during research; verified at build time.
negative sentiment
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.
Research behind this product
No landmark studies linked yet. See the ingredient pages for the full evidence breakdown.
Redaktionellt notes
Frequently backordered/unavailable (was listed as backordered at time of check). Label serving (1000mg) is well below the 3000mg dose the vendor's own marketing cites for homocysteine reduction, would require 3x the recommended serving to hit the cited trial dose.
Why this scored this way
This Double Wood Supplements TMG Supplement (Trimethylglycine) scores 5.7, making it below the site average. It contains 1000.0mg of Betaine (TMG), which is only 33% of the 3000mg trial dose with grade C evidence (mostly preclinical, limited human data). Transparency is a clear strength (score: 9.0), with third-party testing and a public analysintyg.
What drives the score up
- Quality transparency of 9.0: tested by independent lab with a public analysintyg.
What drags it down
- Dose-evidence score of 3.8 is below average for the site.
- Overall dose is only 33% of the trial dose across ingredients.
- Betaine (TMG) (1000.0mg is 33% of the 3000mg trial dose) is significantly under-dosed.
- Limited consumer feedback (community score: 6.0).
Why you'd choose it
- You want good value at $0.66/day.
- You prioritise tested by independent lab produkter with public lab certificates.
Why you might skip it
- You need a full trial dose of betaine (this product under-doses it).
- You want a product that hits the full trial dose (this is at 33%).
- You want a higher-scoring product (this scores 5.7).
Where this sits
Spot an error?
If you are the manufacturer or brand owner of TMG Supplement (Trimethylglycine) 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 →Similar produkter
All Methyl donor →The next highest-scoring produkter in Methyl donor, same scoring method, same rules.