Here’s everything you need to know about the sensitive-skin staple, plus exactly how to incorporate muslin cloths into your routine. Cleansing with a muslin cloth also increases blood flow and circulation, which is great for stimulating collagen and pumping oxygen and nutrients to those skin cells, making your skin look plump and glowy post-rinse. And after the final wipe, your skin is primed and ready for active ingredients to penetrate those pores. The cleanup is also quite simple: Just chuck them into the washing machine or clean them by hand. Whether you use them to exfoliate, deeply cleanse, or swipe on a toner (more on that in a minute!), muslin cloths absorb products and glide across the skin with ease—a type of washcloth that’s fit for the delicate skin of the face, if you will. We should also note that you must always, always start with a clean, dry muslin cloth. If it’s dirty and damp, it’s likely a hotbed for bacteria—and you definitely don’t want to massage that grime into your face. Always clean the cloths after each use, and let them dry completely before stepping up to the sink, King advises.