Key Son is an Exercise Specialist in Personal Training, Sports Nutrition, Sports Stress Management, and Athletic Performance Enhancement. He is certified by the National Academy of Sports Medicine for Personal Training, Sports Performance, and has additional certifications in post-rehabilitation, nutrition, and functional movement coaching. Son also has a Bachelor of Science from Cornell University and over 10 years of experience.

His clients include Actors, Actresses, Models, Film and TV Producers, CEOs, and Athletes. He works in the West Village of New York City.

Son's work has been featured in Allure, Glamour, V Magazine, Elle, Vogue, and Fitness Magazine.