Buy Supplements Without Being Had

Four compounds worth the money, a method for judging the rest, and the categories that are pure marketing.

5 steps · ~25min · tick as you go

5 steps

  1. Creatine monohydrate

    See what a genuinely well-evidenced supplement page looks like.

  2. Testosterone boosters

    See what an unproven one looks like, in the same house style, for contrast.

  3. Supplement explorer

    Filter the whole database by evidence grade rather than by advertising.

  4. "Natural Testosterone Boosters", Rated

    Learn the sleight of hand the whole category runs on: correcting a deficiency is not boosting.

  5. Grade the Claim

    Grade supplement claims cold, without the label in front of you — the test the aisle never gives you.

How this works

Nothing here is gated and nothing is new: every step is a page or a calculator already on the site, and you can jump straight to any of them. The order is the contribution, along with the last step — a round of Grade the Claim, because reading something and being able to judge it later are different skills, and only the second one survives the week.

Ticks are saved on this device. Claims you meet in the check come back on a spacing schedule, and what you know keeps the tally.

Written and reviewed by Mathew Beale, MSc Biotechnology, University of Reading.

Last reviewed: