Lucy Jane Santos is an expert in the history of 20th century leisure, health and beauty, with a particular interest in (some might say obsession with) the cultural history of radioactivity. Writes & talks (a lot) about cocktails and radium. Her debut book Half Lives: The Unlikely History of Radium was published by Icon Books in July 2020. Why science? I have always been fascinated by the idea of science especially our daily interactions with and understandings of science – especially in a beauty context. I could spend hours pondering the labels of things on my bathroom shelf. What is 4-t-butylcyclohexanol (as a random example)? Do I really understand what I am putting on my face and spending my money on? Would it change my purchase habits if I did? Why this book? This book came from an accidental discovery – that there was a product called Tho Radia which contained radium and thorium. I found out about it because I actually bought a pot of it – along with a big bat...