Dhaval G. Bhanusali believes a skincare formula should be evaluated not just by its star ingredient, but by the sum of its parts. The same can be said for his varied professional pursuits. A dermatologist who opened Hudson Dermatology & Laser Surgery in New York about two years ago, Bhanusali’s business ventures have extended his reach beyond his practice to fellow dermatologists with custom skincare platform Skin Medicinals, hair loss treatment specialist Hairstim and Aire, a medical services and software company enabling doctors’ offices to offer savings on skincare products to their patients. He’s also consulted for big companies as different as Johnson & Johnson, Solta Medical and Amazon.