Why Interior Medicine is Different

Most non-toxic product round-ups skip the medical background, keep financial relationships vague, and compare products without a consistent, health-focused method. Interior Medicine is built on three things instead: a licensed physician doing the evaluation, full independence and disclosure from brands, and a published methodology applied the same way to every product.

By Dr. Meg Christensen | Physician-founder of Interior Medicine, a non-toxic home resource built on her background in medicine, biochemistry, epidemiology, and clinical research.

Published Sept 8, 2026 | Updated Sept 8, 2026

Physician Credentials

I'm a board-licensed naturopathic physician with a Bachelor's degree in Biochemistry and Biophysics and graduate coursework in Epidemiology and Biostatistics. I'm an affiliate member of the American College of Medical Toxicology and the National Association of Environmental Medicine. Before founding Interior Medicine, I spent nine years in cancer and neurological disease research, in both laboratory and clinical settings. I also hold a Healthier Materials and Sustainable Buildings certificate and have been WELL AP credentialed. See my full background here.

Documented Methodology

Every product is rated against fixed, published scales, not brand marketing, my opinion, or outdated facts echoing around the wellness world. Materials are checked against third-party certifications and documented test results and evidence. Some products are also rated on how well they perform the specific health job they exist to do. Strip away the marketing fluff and confusion, and you can compare how healthy products actually are, side by side. See the full Methodology, and the Material Health Scales and Health Function Scale that underpins it, for the exact criteria behind every rating.

Full Affiliate Transparency

Every affiliate relationship on this site is individually labeled. Most sites bury a single disclosure at the top or bottom of a page, so you can't tell which brands they're sponsored by or what they're earning a commission on, which leaves room for earnings to come before honesty. I do this to keep my own bias in check. Brands cannot pay for placement, higher ratings, or favorable coverage. The rating comes first, the partnership comes after, if it comes at all. Read the full Affiliate Disclosure and Editorial Guidelines for exactly how this works.