Independent supplement reviews

Is it worth it? Honest, label-based supplement reviews

Before you buy a supplement you saw in an ad, read what is really on the label. We check every ingredient and dose, the real price per day, and the fine print of the refund policy, and we list the cons just as clearly as the pros.

Browse reviewsHow we review
Full labelevery ingredient checked
Cost per daynot just the bottle price
Pros and consalways both sides
Michelle Hert, nutrition researcher and author of the reviews

Your reviewer

Michelle Hert

Nutrition researcher and product tester. Reads every Supplement Facts panel line by line and compares the doses with NIH research.

Read Michelle's story →

Browse reviews by category

Find reviews for the health goal you care about.

Blood Sugar

Glucose and metabolic support formulas

1 review →

Men's Health

Male vitality and performance supplements

1 review →

Weight Management

Metabolism and appetite products

Coming soon

Joints & Mobility

Joint comfort and flexibility formulas

Coming soon

Sleep & Stress

Relaxation, sleep and mood support

Coming soon

Brain & Memory

Focus and cognitive support

Coming soon

How we review a supplement

The same four steps for every product, so you can compare reviews side by side.

Read the real label

We use the Supplement Facts panel, not the sales page, as the source of truth for ingredients and doses.

Compare with research

Each dose is compared with what studies actually used, using public sources like the NIH Office of Dietary Supplements.

Check price and refunds

We calculate the real cost per day and read the refund and billing terms, including the fine print.

List pros and cons

Every review shows who the product may suit, who should skip it, and what to ask your doctor.

Read our full review method →

Questions about this site

Who writes the reviews on Is It Worth It?
Every review is written by Michelle Hert, a nutrition researcher and product tester. Her name, background and review method are on the About page.
How do you decide the rating?
We score ease of use, refund policy and billing, label transparency, value for money, and dosing compared with published research. The cons are listed as clearly as the pros.
Do you get paid by the brands?
We do not accept payment or free products in exchange for a rating. Some links are affiliate links, which means we may earn a commission if you buy, at no extra cost to you.
Is this site medical advice?
No. Our reviews explain what is on the label and what the research says about each ingredient. Always talk to your doctor before starting a supplement, especially if you take medication.