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Tom’s Weight LossRankings
Updated 2026 · 138 supplements and 461 providers researched

Most weight loss products are not worth your money.

I read what these companies publish about themselves — every ingredient, dose, price and cancellation term — and mark every gap where they publish nothing. Researched from public sources rather than hands-on tested, and we earn no commission on any of it.

No sponsored placements. No paid reviews. Here is exactly how we make money.

Featured placement

CoreAge Rx GLP-1 Support

A three-strain probiotic with prebiotic fibre, targeting the gut rather than appetite directly

Form
Delayed-release vegetarian capsule
From
$23.83

Featured placement

This position was chosen by us, not produced by our evidence ordering, and it did not earn the spot by out-performing anything. No money is involved — we are not paid for it and earn no commission on it. Everything below is ordered on published evidence as normal. Full terms

Read the full review

Read from the source

Every figure comes off the company's own published pages, and each entry carries the date we read it.

Nothing here pays us

We earn no commission on any supplement or provider on this site, including the featured placement.

Gaps stay visible

Where a company publishes nothing, the entry says so rather than filling the gap in for them.

Where the list starts

The featured placement, then the products whose manufacturers publish the most about them. Not a verdict on what works — we do not test these.

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Featured placementThird-party tested

CoreAge Rx GLP-1 Support

8/8Disclosed

A three-strain probiotic with prebiotic fibre, targeting the gut rather than appetite directly

From $23.83/moDelayed-release vegetarian capsule
Third-party tested

CoreAge Rx Full House

8/8Disclosed

1,525mg of fibre in two capsules at 63¢ a day — a published total, and well below research doses

From $19/moCapsule — two daily
Third-party tested

CoreAge Rx Strong Suit

8/8Disclosed

5g of plain creatine monohydrate, nothing else — the correct dose of the best-evidenced ingredient on this site

From $19/moUnflavoured powder — one 5g scoop daily
461 providers researched

The GLP-1 directory

Semaglutide and tirzepatide are the only things in this market with large randomised trials behind them — which is exactly why the companies selling them deserve scrutiny. We researched what 461 online providers actually publish about pricing, medication type and terms, and marked every gap where they publish nothing.

Researched from published sources, not hands-on tested. No scores, and we earn no commission from any of them.

Products that will not tell you the dose

Their actives sit behind a proprietary blend, so you cannot tell whether any ingredient reaches the amount its research used. That is the manufacturer's choice, and it is worth knowing before you buy.

See the full list
Doses not published

Pendulum Akkermansia

The best-known Akkermansia product, from the company that commercialised the strain

Most recently researched

Every entry carries the date we read the manufacturer's pages. These are the newest.

All reviews

States plainly on its own product page that it is not a GLP-1 agonist and contains no GLP-1

From $41.99/moCapsule