Dip powder nails are somewhere between a regular mani and a fake nail. We can consider them a “diet acrylic,” says celebrity manicurist Erica Marton. Instead of using UV rays to seal in your polish, the color comes from a pigmented powder. Between base coats and a sealant, you dip your nails into a little jar of your chosen color (SNS and Revel are the two most popular and vetted manufacturers) for a mani that could last three to four weeks. The trend isn’t exactly new per se—it’s actually been around for years—but the wonderful world of social media is quickly popularizing the process and helping it stage a comeback.