About this reference

Our editorial standard

Every factual claim on this site traces to one of four primary sources: the published ingredient list, the official order page, the stated return policy, or peer-reviewed literature indexed on PubMed and summarised by bodies such as the NIH Office of Dietary Supplements, the National Center for Complementary and Integrative Health and the American Heart Association.

Where a figure is not disclosed, we write that it is not disclosed rather than filling the gap with an estimate. Where an ingredient's research sits in a different field from the one it is being marketed for, we say so. Where a marketing claim is untrue — and in this category the “FDA approved” badge is untrue — we correct it on the same page that carries our affiliate link.

Why blood pressure content gets extra scrutiny here

This is not a category where a bad supplement decision costs you money and nothing else. Hypertension is symptomless and it is a leading contributor to stroke, heart attack, kidney failure and vascular dementia. A person who buys a botanical blend instead of seeing a doctor, or who quietly reduces a prescribed medication because a website implied a natural alternative exists, can be seriously harmed.

That is why every substantive page here carries the same standing notice, why we publish the American Heart Association blood pressure categories rather than burying them, and why our ingredient pages list drug interactions before benefits. If that costs us conversions, it is a trade we are comfortable making.

Why we carry affiliate links

This site earns commission when readers buy through our links. We disclose that in the footer of every page and on our affiliate disclosure page. The commission does not change what we publish: the same pages that link to the product also document the three non-cardiovascular botanicals, the undisclosed doses, the six drug interaction classes, the false FDA badge and the fact that no independent review record exists. If we only published favourable material the links would be worth more and the site would be worth less.

How we date our pages

Prices, formulations and policies change without notice. Every page carries the date its claims were last verified against primary sources. If you are reading this more than a few months after that date, confirm current pricing and terms on the official order page before buying. Spotted something out of date? Send us a correction.

The people behind it