Health & Personal Care
Personal-care picks backed by clinical evidence and certification data.
Ranked lists
Buying guides
Guide
How to Choose an Electric Toothbrush
The ADA Seal, what Cochrane actually found, and why replacement heads are the real price.
Guide
Is Your Protein Powder Actually Third-Party Tested?
"Lab tested" on the tub is a marketing phrase. We looked up 27 best-selling protein powders in the actual certification registries — several big Amazon best-sellers aren't there.
Guide
The SPF Testing Problem — and How to Buy Sunscreen Anyway
Why a bottle that says SPF 50 doesn't always test at SPF 50, and what actually predicts whether a sunscreen works.
Guide
Home Blood-Pressure Monitors Doctors' Registries Actually Validate
"FDA cleared" is not "clinically validated" — and several of the best-selling cuffs on Amazon appear on no validation registry at all.
Guide
How Loud Is Your White Noise Machine?
The 2014 study that measured 14 infant sleep machines at full volume — and what the actual safety numbers are.
Data tables
Data · Sortable
Home Blood Pressure Monitors — Checked Against the Clinical Validation Registry
12 of 26 home blood-pressure monitors checked here are on STRIDE BP's clinical validation registry — several popular Amazon/Walmart sellers, including Braun ExactFit and budget-brand cuffs, aren't.
Data · Sortable
Protein Powders — Checked Against Third-Party Anti-Doping Registries
20 of 27 best-selling protein powders checked here carry NSF Certified for Sport and/or Informed Choice certification — the rest, including several Amazon best-sellers, don't appear in either registry for their flagship SKU.
Data · Sortable
Electric Toothbrush Specs & Head Cost Data
Drive type, ADA Seal status, pressure sensor, and real annual head cost for every brush we researched — sortable.