Silk is a great material to use for curly, dry, or damaged hair. Wrapping hair in silk is a great way to prevent it from going frizzy overnight. This is especially helpful for people with curly or textured hair and helps preserve braids and blow-dried hair. The natural properties of silk, including its smooth surface, can help reduce friction on your hair which often causes damage, like split ends. It’s naturally hypoallergenic. Silk has a natural resistance to dust mites and other allergens. Silk doesn’t strip the moisture out of your hair the way cotton does. Cotton is more porous than silk, which absorbs moisture from your hair.