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The science, in plain language.

Clear, sourced explainers on microplastics, the materials around us, and what actually reduces what enters your body.

Chewing simulation chambers used in the retainer wear study

We studied what's in your retainer. Here's what we found.

We put clear plastic retainers through six months of simulated chewing, then counted what came off them. Research Science

Glass water carafe and drinking glass with a steel bottle, wooden board, and linen cloth on a kitchen counter

Microplastics are everywhere, but you're not powerless

If we treat microplastics like we treated lead in the 1970s, they can stop hurting us. Read below to find out how. Practical Health Science

Two plastic threats, one confused conversation

Two plastic threats, one confused conversation

Microplastics and plastic additives both end up in your body, but they travel by very different routes, and the distinction matters enormously. Chemistry Pollution

We studied what's in your retainer. Here's what we found. Andrea H. Westlie, PhDOctober 01, 2026 Andrea H. Westlie, PhD October 01, 2026 5 min read Microplastics are everywhere, but you're not powerless Andrea H. Westlie, PhDJuly 24, 2026 Andrea H. Westlie, PhD July 24, 2026 5 min read Two plastic threats, one confused conversation Andrea H. Westlie, PhDJuly 24, 2026 Andrea H. Westlie, PhD July 24, 2026 11 min read