While Kate Middleton’s style game is always on point (she’s the one to watch for fancy attire inspo), her beauty regimen is also enviable. The Duchess of Cambridge always seems to have a glow — and the reason behind that is shockingly simple.

According to Arabella Preston, Middleton’s makeup artist and founder of luxury natural beauty brand Votary, the mom of two’s secret ingredient in her routine is a simple terry washcloth, or as the British call it, a face flannel.

While many people probably consider washcloths to be a breeding ground for bacteria, Preston insists to The Cut that “it’s quite necessary.” Washcloths are gentler than brushes but get more done than your fingers can; they’ll remove makeup and grime while gently exfoliating to reveal the brighter skin beneath.

If you’re worried about germs, just make sure to cleanse the cloth every few days (much like you should wash your makeup brushes). If you want something that won’t be too abrasive, look for cloths made out of softer fibers — just be sure you use one.

Do you use a washcloth as part of your routine? Will you start? Tell us @BritandCo!

(h/t The Cut; photos via Chris Jackson/Getty + Anthropologie)