Understand what you take. Choose with more confidence.
You're about to spend money on something that goes in your body. You deserve to know what the research actually says before you do — not what the label wants you to believe.
What are you trying to figure out?
Pick a starting point below. Wherever you start, you'll end up with an answer — not a sales pitch.
Strength & Performance
See what's actually proven for creatine, pre-workout, and recovery.
Explore →Men's Health & Ageing
What changes after 40, and what to do about it.
Explore →Testosterone Support
The ingredients, the evidence, and where the two don't match up.
Explore →Is This Safe For Me?
Check this before anything else.
Explore →Independent guidance. Clear evidence. No miracle claims.
We don't sell supplements, so we have no reason to tell you a product works better than it does.
Every claim here is labeled by evidence strength — because "may support healthy testosterone" and "clinically proven to raise testosterone" are not the same claim, even printed the same size on a label.
We research the ingredient the same way no matter which brand is selling it. The chemistry doesn't change based on the marketing budget behind it.
The ingredient library
Twenty of the most common ingredients in men's performance and testosterone products — what they are, what's been studied, and what hasn't.
Picture the back of a supplement bottle: eleven ingredients, most in a "proprietary blend," no individual doses listed. That's not an accident — it's a formulation choice that makes the label impossible to evaluate.
We start from the other direction. Before we look at a single product, we look at what's actually in it — dose by dose, ingredient by ingredient — against what the clinical research on that ingredient actually shows. Then, when you read a product review, you'll already know what to look for.
Browse the ingredient library →How we evaluate
Every ingredient and product on this site is checked against the same six criteria: what the research actually shows, whether doses match the studies, who the formula is realistically suited for, how transparent the label is, what the safety profile looks like, and whether claims can be independently verified.
Before you buy anything, check this first
Not sure if something's safe for you specifically — your medications, your age, your situation? Start with these.
Supplementation changes after 40. So should your research.
The multivitamin that worked fine at 28 isn't necessarily the right one at 45. Nutrient absorption changes. Hormone baselines shift. The formulation that made sense a decade ago might now be solving a problem you don't have, or missing one you do.
Explore healthy ageing guides →Recently reviewed
New and recently updated pages, in order of publication.
No pay-for-placement
Products are covered based on search demand, not sponsorship.
Evidence-labeled claims
Every efficacy statement is graded by evidence strength.
Desk-research disclosure
We research every product from published evidence and label data. We do not claim to have personally tested products we review.
Regularly reviewed
Pages are checked and updated as evidence changes.