Chemistry

Chemists are hard at work figuring out how to make tattoos last—and ensure they’re safe.

Promethium, one of the rarest and most mysterious elements in the periodic table, has finally given up some crucial chemical secrets

A number of whole-body deodorants are coming to market. But are they safe and effective?

Regulating chemicals one-by-one has allowed the tobacco industry to skirt menthol bans by creating new additives with similar effects but unclear safety profiles

Recycled materials contribute to a pollutant-neutralizing paint

New research into weed reveals how a lemon-scented terpene can ease anxiety without reducing the high.

This beer-making by-product could offer a sustainable way to isolate metals for recycling electronic waste

Scientists think they’ve cracked the long-standing mystery of attraction among particles with a similar charge

Extreme atoms are pushing the bounds of physics and chemistry

A decade after Congress told the FDA to expedite the approval of more effective sunscreens, the federal government still has not approved sunscreen ingredients that are safely being used around the world

Tricks to produce strange “ordered” ice could reveal new ice forms

A massive new dataset highlights more than 4,200 plastic chemicals linked to health and environmental risks. But scientists say there are still large gaps in the scientific understanding of plastic ingredients