THE CLEVER WOMAN'S GUIDE TO SMARTER BEAUTY BUYS

Can you mix & match?

"I feel it's a myth that you can't mix and match brands," says facialist Emma Hardie. "If you like a cleanser from one range but the moisturiser makes you break out, try another one. However, I would recommend you don't mix ingredients such as AHAs, retinol and glycolic acid. Too many very active ingredients can cause irritation and sensitivity."