About

Physician-founded. Independent.

h2know exists to make drinking water legible — what’s in the bottle, what’s in your tap, and what the evidence actually supports. We take no money from the brands we grade, and we say so when the science is thin.

Founder

Edward Ratush, MD

Founder · Board-certified psychiatrist and addiction medicine physician

[PLACEHOLDER BIO — replace before launch.] Edward Ratush, MD, is a board-certified psychiatrist and addiction medicine physician. He founded h2know after watching water marketing routinely outrun water science, and built it to hold every claim — including its own — to a published, checkable standard.

[PLACEHOLDER — add background, training, affiliations, and the personal reason h2know exists. This paragraph is a stub and should be replaced with final bio copy.]

Our mission

Study it. Don’t claim it.

We publish independent, physician-reviewed information about drinking water and hold ourselves to the same evidentiary standard we apply to everyone else. Our database reviews are independent of anything we may sell, our grades reflect what brands actually disclose, and where the evidence is thin — on skin, nails, and minerals, for instance — we say so plainly. See our methodology for exactly how grades are assigned and how we handle conflicts of interest.

Questions or corrections? Get in touch. Content on h2know is general education, not medical advice.