Check if a Product is Non-Toxic
Second Opinion: A Non-Toxic Product Checker by Interior Medicine
The Second Opinion Product Checker app is currently in development. It takes the method I use to evaluate any product and hands it over to you, to check any product you’re curious about. It’s based on my Methodology, the Material Health Guides, and the toxicology concepts covered in the What “Non-Toxic” Actually Means course to separate hazard from risk. Below is the experimental widget version; check it out and let me know what works well and what you’d like to see in the feedback form at the bottom.
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 May 26, 2026 | Updated Sept 2, 2026
Second Opinion
Navigate the non-toxic world well. Check any home product against Interior Medicine's methodology.
If something didn’t work, I’d love to hear what it was, and consider adding your product to the Request Tracker for me to investigate by hand instead.
Feedback Form
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Don’t see what you’re looking for? Request a review, or check it yourself in seconds with the Second Opinion Product Checker. Spot something outdated? Let me know and I’ll update it. Join the spam-free newsletter for interesting info and to hear when new reviews are up.
FYI, “non-toxic” has no official definition, so I rate every product with the same method. It’s built on third-party certifications and published test data, not brand claims. For a deeper dive, my free course walks you through it.
Everything on Interior Medicine is educational information, not medical advice. Read my full disclaimer.
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