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About Interior Medicine

Interior Medicine is a physician-founded, evidence-based resource evaluating household chemical exposures, non-toxic products, and their impact on health. Founded in 2021 by Dr. Meg Christensen, the site applies a consistent, evidence-based methodology across healthier home product reviews, material guides, educational resource pages, lab and home testing guidance, and consultations. It replaces marketing hype and fear with curiosity and research-backed evaluation. The deeper aim is to share the underlying chemistry, research, and reasoning behind exposures, and deeper still is finding common ground between conventional medicine and wellness culture, where most people actually land.

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.

Interior Medicine’s Values

Transparency

Rating scales show exactly how and why a product earns its score. Affiliate partnerships are disclosed directly under each product, not in a blanket statement buried elsewhere.

Evidence Over Ideology

Skepticism is applied equally to brand healthwashing and wellness fear-mongering. Claims are backed by research, and "we don't know yet" is treated as a legitimate answer instead of brushing off potential future importance.

Balance Over Perfection

Home toxicity is one factor in health, not the whole picture. There are legitimate reasons to choose something other than the "healthiest" option. Informed decision matters more than a perfectly non-toxic one.

Discernment Over Trend

Not every new claim or warning in the non-toxic space deserves equal weight. Discernment means separating evidence from noise, a skill covered in depth in the free course.

Clear Priorities

Sustainability matters, but eco-friendly and human-friendly aren't always the same thing yet. In time, I hope they will be, but “non-toxic” isn’t confused with the being the same thing as “sustainable” here. (Recycled polyester is great for removing plastic water bottles from the ocean, but not necessarily healthy for direct skin contact, as one example.)

Education Over Shopping Lists

The goal is to explain the reasoning rather than handing over a Top 10 list. Depth is available for readers who want it; the recommendations stand on their own for readers who don't.

A Note On Language

You might notice I use the words non-toxic, chemical, toxin and toxic, even though there is no agreed-upon definition of the term non-toxic, and that everything, even water, is made of chemicals, so nothing is truly chemical-free. Likewise, toxin refers to a natural substance like a plant poison or venom, whereas toxicant is a more accurate term for the chemicals in products that have a negative health impact. I recognize that something that is toxic does not automatically make it a health risk.

I choose to use these scientifically inaccurate words anyway purely for practical purposes. These words are currently the most culturally agreed-upon, descriptive, and accessible terms that allow people to find the information they’re looking for. “Non-toxic” is shorthand for a complicated problem. Read my full view on it in my free What “Non-Toxic” Actually Means course. I’ll update my terminology as the cultural conversation around it shifts.