Momo Aesthetics is a medical aesthetics practice located in Santa Monica, California, specializing in injectables, regenerative treatments, and non-surgical facial rejuvenation. Services include Botox, dermal fillers, PRF microneedling, Sculptra, and chemical peels. The clinic is led by board-certified nurse injector Monica You-Booth and medically overseen by board-certified physician Dr. Maxwell Jen.
Monica You-Booth BSN RN-BC
Monica You-Booth is the owner and founder of Momo Aesthetics and a board-certified registered nurse. A graduate of the UCLA School of Nursing, she previously worked at UCLA Mattel Children’s Hospital in pediatric oncology before transitioning into aesthetic medicine in 2020, where she found a natural connection between clinical care and artistry.
Background & Approach
Board-Certified Registered Nurse (RN-BC)
UCLA School of Nursing graduate
Former pediatric oncology nurse at UCLA Mattel Children’s Hospital
Practicing aesthetics since 2020
Trained with world-class injectors
Guided by a “less is more” philosophy, Monica customizes each treatment plan with a focus on safety, subtle enhancement, and natural-looking results. Empowering patients to look and feel like the best version of themselves remains central to her work.
Maxwell Jen, MD
Dr. Maxwell Jen serves as the medical director of Momo Aesthetics and provides medical oversight for aesthetic treatments, ensuring care is delivered following individualized consultations with patient safety and clinical integrity at the forefront. He is a board-certified physician with expertise spanning emergency medicine, clinical informatics, regenerative medicine, and obesity medicine.
Clinical Background & Leadership
Board-certified emergency medicine physician
Former medical director and clinical teaching faculty at a university medical center
Supervised and educated medical students, interns, and residents
Earned an MBA and board certifications in clinical informatics
Aesthetic & Regenerative Training
Practicing aesthetics and anti-aging medicine since 2021
Extensive training in:
Neurotoxins and dermal fillers
Biostimulators and PRP/PRF therapy
Mesotherapy and IV therapy
Laser and light-based treatments
Microneedling and radiofrequency microneedling
High-intensity focused ultrasound (HIFU)
Minimally invasive body contouring
Clinical Focus
Facial rejuvenation and facial volume restoration
Skin resurfacing and non-invasive facelifts
Facial and body contouring
Hair restoration
Acne and scar treatments
Weight optimization therapy
Regenerative aesthetic care
Dr. Jen’s experience as a medical director spans emergency medicine, home health services, COVID-19 testing operations, and private anti-aging and aesthetic practice.