Rachel Apfel Glass discusses founding and growing her membership-based nail studio, Glosslab. : In this ongoing series, we are sharing advice, tips and insights from real entrepreneurs who are out there doing business battle on a daily basis. (Answers have been edited and condensed for clarity.) I'm Rachel Apfel Glass, founder of membership-based nail studio Glosslab. I worked in hedge fund fundraising for 10 years and was always in search of a quick, clean manicure because of my busy lifestyle. I always felt like manicures were errands; a very joyless and inefficient experience. I talked about recreating the nail space for years.