How we evaluate brands and products

At Health Protocol we aim to give you honest, useful guidance. Here's how our reviews and rankings are produced.

Our process

• We research each product using reputable, published sources.
• Where possible, we test products hands-on over a meaningful period.
• We assess effectiveness, ingredients/specs, value, and user experience.
• Ratings reflect our overall assessment against these criteria.

What we look at

• Formula and evidence — what's actually in it, at what dose, and what the published research says about those ingredients.
• Delivery and quality — manufacturing standards, third-party testing where disclosed, and whether the product is built to actually work as intended.
• Value — price relative to dose, formula quality, and comparable products in the category.
• Real-world experience — hands-on testing and reader-reported feedback, where available.

Independence

Some links on Health Protocol are affiliate links and we may earn a commission — this never changes our verdicts or rankings. See our affiliate disclosure for details.

Our content is informational and is not a substitute for professional medical advice, diagnosis, or treatment.