Interior
Medicine
“Non-toxic” has no definition, but a healthier home is still worth pursuing.
Interior Medicine uses the closest thing to a definition: a consistent method based on materials, ingredients, and third-party certifications, applied to every product.
No healthwashing, fear-mongering, or perfectionism; just informed choices for real life.
Interior Medicine is a healthier home resource founded and written by Dr. Meg Christensen. It includes non-toxic product reviews, material health guides, a free course, and clinical consultations. Read more about Interior Medicine’s philosophy.
What “Non-Toxic” and “Clean” Mean on Interior Medicine
Nothing is free of chemicals, and nothing labeled “clean” guarantees it’s safe. I evaluate every product the same way:
What it’s made of: Materials and ingredients, layer by layer, as far as the brand discloses them.
What’s verified: Third-party certifications fill in where full ingredient lists don’t exist. I explain which ones I trust and why.
What’s missing: Disclosure gaps are part of the rating, not an afterthought.
This is the closest thing to a definition of “non-toxic” that exists. It’s applied the same way to every review, so you can compare products fairly. See the full methodology.
Informed Choice, Not Perfectionism
You don’t need to replace everything you own. Some changes matter more than others, and the right ones depend on your home, your budget, and your health. Keep what you love. My goal is to help you understand the tradeoffs so you can decide what’s worth changing. Start with my guide How to Use Data to Detox Your Home.
What “Non-Toxic” Actually Means: A Free Course
A free 10-part course on how your home affects your health. Learn to tell hazard from risk, read certifications, and separate real chemical concern from fear. Start the course.
Healthier Home Product Reviews
Dr. Meg Christensen’s deep-dive reviews based on material evaluation, verified certifications, and medical and environmental health research. Browse the product reviews library.
Material Health Guides & Resources
What’s in fabrics, foams, coatings, and adhesives, and what the research says about their health effects. These guides are the foundation of every product review. Explore the guides.
Interior Medicine Clinic
Consultations are available now with Dr. Meg Christensen. Lab testing for you and your home is coming soon, along with more providers.
