Dr. Leila Chaychi
Bringing her Medical Expertise to the Aesthetics Field
Dr. Leila Chaychi is a renowned endocrinologist and the best weight loss doctor in San Mateo, with a wealth of experience in clinical practice. She attained her fellowship in Endocrinology and Metabolism from Dartmouth Medical School in 2010 after completing her medical training at Yale University.
Recognizing the need for a more comprehensive approach to patient care, Dr. Chaychi expanded her services to include aesthetic treatments. She became licensed in medical aesthetics a few years ago and now offers an array of cutting-edge treatments at Cosmetica Anti-Aging, Aesthetic Lasers, and Weight Loss, located in San Mateo, Los Gatos, and Danville. Over the years, Dr. Chaychi has distinguished herself as a Principal Investigator in numerous groundbreaking clinical trials for weight management.
Cosmetica Anti-Aging, Aesthetic Lasers, and Weight Loss has become a local hub for holistic health, seamlessly combining weight management services with aesthetic enhancements. Dr. Chaychi employs a variety of state-of-the-art devices and injectable treatments, ensuring that her patients not only achieve their weight loss goals but also experience anti-aging benefits.
Her methods have consistently proven effective in helping patients attain well-defined and sculpted body contours, results that are often unattainable through diet and exercise alone.
By incorporating advanced technologies into her weight loss coaching and treatments, Dr. Chaychi has successfully eliminated the need for post-weight loss surgical procedures like body lifts. Patients of Cosmetica Anti-Aging, Aesthetic Lasers, and Weight Loss experience enhanced muscle tone and reduced body fat, reaping the rewards of a comprehensive, state-of-the-art approach to health and beauty.
Discover the beginnings of Cosmetica Anti-Aging, Aesthetic Lasers, and Weight Loss through the voice of our founder, Dr. Leila Chaychi. Click the button below to access an exclusive audio message outlining our journey.
Paris Jalali, BSCN, NP
Nurse
Paris Jalali, MA, BScN, RN, is a nurse with 26 years of experience in medical-surgical nursing, intensive care, and a variety of healthcare settings. Currently completing her Family Nurse Practitioner certification and Doctorate in Nursing Practice, Paris combines advanced medical expertise with a refined approach to aesthetic care. Known for her meticulous technique and safety-first philosophy, she specializes in subtle, natural enhancements that refresh appearance and restore confidence. Paris believes true beauty is an extension of health and well-being and is dedicated to delivering personalized treatments that help clients look naturally radiant and feel their best.
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Dr. Armita Bakhtmand, PA-C
Former Medical Degree over seas
Dr. Armita Bakhtmand is a board-certified Physician Assistant with an extensive medical background and years of experience in aesthetic medicine. She earned her Doctor of Medicine degree from Yazd State University of Medical Sciences and her Master of Physician Assistant Studies from West Chester University of Pennsylvania.
Dr. Bakhtmand specializes in non-surgical facial rejuvenation, aesthetic injectables, laser treatments, regenerative medicine, and body contouring. She is dedicated to providing safe, personalized care and achieving natural-looking results that enhance each patient’s confidence and beauty.
Education
Doctor of Medicine (MD), Yazd State University of Medical Sciences
Master of Physician Assistant Studies (MPAS), West Chester University of Pennsylvania
Certifications
Board Certified Physician Assistant (PA-C), NCCPA
ACLS & BLS Certified
Advanced training in aesthetic injectables, laser procedures, and regenerative medicine
Sarah Long
Nurse Practitioner
With over a decade of medical experience, Sarah is a licensed Nurse Practitioner who began her career working in molecular and cellular biology research before advancing into clinical practice. Passionate about forward-thinking and evidence-based medicine, she specializes in integrative wellness, regenerative and biostimulation treatments with a personalized approach that support optimal health, longevity, and beauty. Her mission is to help every patient look and feel their absolute best through individualized, compassionate care.
In her free time, Sarah enjoys reading, traveling, and volunteering medical services to underserved communities.
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Janessa
Aesthetic Nurse
Over the past 13 years, I have dedicated my career to the field of medical aesthetics & wellness, nurturing my passion for helping clients achieve their wellness and aesthetic goals. My journey began during my college years, where I simultaneously pursued a degree in organizational communication studies while working at a renowned med spa. This experience served as a catalyst for my growing fascination with the world of aesthetics and wellness.
Following my graduation, I pursued my interest in aesthetics and wellness by obtaining an aesthetician license. This allowed me to delve deeper into the practical aspects of the field, gaining hands-on experience serving as Practice Manager and clinical roles at various plastic surgery clinics and med spas. As my expertise and profound understanding of the medical aesthetic industry expanded, I found myself collaborating with several startups, aiding them in establishing their own successful spa ventures.
Motivated by a relentless pursuit of excellence, I decided to take the next significant step in my career and enrolled in a program for an accelerated second bachelor’s degree in nursing. This educational endeavor has equipped me with a comprehensive understanding of the medical intricacies involved in providing holistic care to patients, further enhancing my ability to blend my aesthetic/ wellness expertise with a profound understanding of medical principles.
My diverse background ranging from extensive practice management, consulting, to hands-on experience in various medical aesthetic settings, has enabled me to cultivate a unique skill set.
Vicky Lara
Nurse Practitioner
Victoria Oliva Lara (Vicky) is an aesthetic nurse practitioner with over 10 years of experience in healthcare. She earned her undergraduate degree from the University of Miami before completing her Doctor of Nursing Practice and Family Nurse Practitioner education at Samuel Merritt University. Her clinical background includes acute care, dermatology, cosmetic surgery, and aesthetic medicine, providing a strong foundation in facial anatomy, skin health, and aesthetic treatments. After completing advanced aesthetic training in Miami, she brought the latest techniques and artistry of Miami aesthetics to the Bay Area.
Vicky is passionate about helping patients achieve refreshed, balanced, and natural-looking results. She believes aesthetic medicine is about enhancing each person’s natural beauty and helping them feel confident in their own skin. Known for her gentle touch, attention to detail, and personalized approach, Vicky is dedicated to creating customized treatment plans that help every patient look and feel their best.
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Grace Song
Registered Nurse
Grace is a highly experienced Registered Nurse with a background in critical care (ICU) and aesthetic medicine. Born and raised in Seoul, Korea, she incorporates her Korean background and continued K-beauty education through physician-led training and professional aesthetic seminars into her practice.
She specializes in Botox and other neuromodulators, dermal fillers, Radiesse, peptides, PRP skin rejuvenation, Rejuran, collagen-boosting treatments, microneedling, laser treatments, pigmentation and scar management, and hair restoration.
With a strong focus on safety, facial balance, and natural-looking results, Grace provides personalized treatment plans designed to enhance each patient’s natural beauty and confidence.
Mojgan Maali
Registered Nurse
Mojgan Maali, RN, is a highly skilled nurse with degrees in nursing, biology, and art, and more than 25 years of experience across surgery, gynecology, hospital care, and home health. After earning her nursing degree, she spent several years in visiting healthcare throughout the Santa Clara area — clinical work that shaped her meticulous attention to detail and unwavering commitment to patient safety.
Combining her medical background with an artistic eye for facial balancing, Mojgan transitioned into medical aesthetics. She’s completed advanced training in injectables (Botox, filler), peptides, hair restoration, hair removal, and laser therapies. Her philosophy: enhance patients’ natural features rather than alter them, so every client leaves feeling refreshed and confident in their own skin.
Outside of work, Mojgan stays active — hiking, exploring the Bay Area food scene, and keeping up with the latest in medical aesthetics.
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Maria Mercedes
Permanent Makeup Artist & Licensed Esthetician
Maria Mercedes is a licensed esthetician, 10x certified permanent makeup artist, and aesthetic medical assistant with roots in Miami and a Bay Area upbringing in San Francisco. After over a decade in law, she discovered her passion for aesthetics and fully immersed herself in the field, continuously studying the latest techniques in skin health, beauty, and wellness.
Maria Mercedes brings meticulous skill and genuine care to every treatment, helping clients enhance their natural beauty while honoring their unique features and goals. Outside the clinic, she teaches permanent makeup and facial techniques, enjoys cooking, reading, traveling, hiking, weight lifting, and cherishes life with her husband, son, and Rottweilers. She believes the energy you put into the world is what you get back.
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Ava Tehrani
Esthetician
With nearly 18 years of experience in advanced skincare and wellness, Ava is a certified esthetician holding professional credentials from both Canada and the United States. She specializes in advanced facials, customized skincare, and therapeutic massage, working with medical-grade brands like Obagi and pairing modern device technologies with personalized treatment plans for healthy, radiant skin. She also incorporates Reiki energy healing to support relaxation and overall well-being. Her goal: to enhance each client’s natural beauty while delivering a calming, rejuvenating experience every time.
Barbara Dixon
Office Manager
Barbara i s an experienced healthcare professional and practice management leader with a strong background in healthcare operations, team leadership, patient experience, and process improvement. Throughout her career, Barbara has successfully managed busy medical practices, led and developed teams, streamlined workflows, implemented operational improvements, and helped create efficient, patient-centered environments.
With experience spanning practice management, clinical operations, managed care, revenue cycle, authorizations, and front-office administration, Barbara brings a well-rounded understanding of both the clinical and administrative sides of healthcare. She is passionate about developing strong teams, improving operational efficiency, and ensuring patients receive a high level of care and service. Her strengths include leadership, communication, problem-solving, workflow optimization, staff development, and building collaborative relationships among healthcare teams.
Barbara is known for her hands-on leadership style, attention to detail, and ability to navigate the challenges of a fast-paced healthcare environment while maintaining professionalism and a strong focus on patient satisfaction. Her career has included leadership roles with Pediatrix/Obstetrix of Los Gatos, California Skin Institute, Arch Vet UrgentCare, Sutter Bay Medical Foundation, and Stanford.
Outside of her professional career, Barbara enjoys spending quality time with her family and traveling to new places. She values creating meaningful experiences with the people she loves and enjoys exploring new destinations, cultures, and experiences.
Brandon
Certified Medical Assistant
I hold a Bachelor of Science in Biology with a concentration in Physiology from San Francisco State University and completed my Medical Assistant training at Unitek College. My background in human biology and clinical training has given me a strong foundation in understanding how the body functions and how lifestyle choices impact overall health.
I’m passionate about fitness, weight loss, and helping others build healthier habits. As someone who enjoys working out and prioritizing an active lifestyle, I’m especially interested in the connection between exercise, physiology, and sustainable weight management. My goal is to continue applying my knowledge and personal experience to support healthier living and long-term wellness.
Samantha Salguera
Certified Clinical Medical Assistant
Samantha has been immersed in the medical field since age 16, working as a certified nursing assistant at a skilled nursing facility, a sports medicine intern under the supervision of an NFL sports physical therapist, and an emergency medical scribe at a Level 1 trauma center. Along the way, she has taken on numerous leadership roles, including president and student lead for several medical and STEM-related clubs and organizations.
She holds a Bachelor of Science in Molecular, Cellular, and Developmental Biology, with a minor in Education, from the University of California, Santa Cruz, and completed her medical assistant training at the Campbell Adult Education Center through CalRegional.
Looking ahead, she hopes to combine her passion for informed health care and education as she works toward becoming a medical student and, eventually, a doctor.