Caroline Hirons: The most powerful woman in beauty

Toilet roll isn't the only thing people have been stockpiling during quarantine - skincare has enjoyed a major boost since the world locked down. Retailer John Lewis reported that sales increased 183% in April, as many of us stuck at home sought to change up our regimen. But if talk of 'acid toning' still leaves you confused, and you can't tell whether your skin is dry or dehydrated, a new book arriving this month will answer all your questions.