purra.

Learn

Plain-language articles on the research behind going plastic-free. Every factual claim links to the actual study or publication it comes from — and where the science is still unsettled, we say so instead of rounding up.

Microplastics are showing up inside us

Peer-reviewed studies have found plastic particles in human blood, placentas, and brain tissue. What's actually been measured, and what nobody knows yet.

Read the evidence →
How plastic gets into your food and drink

Plastic tea bags, bottled water, cutting boards, and synthetic laundry — the routes researchers have measured, with the numbers.

See the pathways →
Does going plastic-free actually help?

The honest case for switching: which swaps measurably cut what you take in, which ones matter most, and where the limits are.

See what works →
How to spot greenwashing

"Plastic-free" tea bags made of bioplastic mesh, "eco" labels nobody regulates, vegan leather that's polyurethane — a field guide to reading past the marketing.

Learn the tells →
Ready to act on it? Our plastic-free buying guides hold the hand-vetted picks, and the Purra app — launching soon on iPhone — finds a swap for anything you point it at.