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Our mission at the HTB Aesthetics Academy is to elevate education in Aesthetic Medicine through the delivery of best-in-class training.


The HTB Aesthetics Academy will positively impact 33 million people through teaching, training, and collaboration in Aesthetic Medicine, resulting in top-notch patient care delivery.









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Medical Director

Dr. Amanda Holden is double board certified in Emergency Medicine and Medical Aesthetics. She is the founder and CEO of Holden Timeless Beauty, a multi-location medical aesthetics practice in Southern California.


She co-founded the HTB Aesthetics Academy which trains injectors in the art of minimally invasive injectables. She serves on the Advisory Board for The
Aesthetics Industry Association and speaks as a faculty educator at Medical Aesthetics Conferences nationally.


She tours nationally as the keynote speaker for the global device company BTL. In 2022, she joined the Galderma GAIN Business team to teach best practices to Aesthetics Practice Owners nationwide. She has been featured on multiple podcasts, and she started her own podcast last year called, Reveal the Appeal.


Her personal mission is to be a global thought leader in Medical Aesthetics and teach people how to age agelessly. She has an immense passion for business and marketing with a focus on education, excellence and entertainment. She has built both personal and business brands on social media over the past 6 years and loves helping other entrepreneurs grow their businesses and brands to be more successful.


  • CEO of Holden Timeless Beauty

  • International Speaker and Educator

  • ABC 10 News Makeover Monday Doctor

  • Founder of HTB Aesthetics Academy

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Director of Clinical Education

Katie Allyne Martin, PA-C is a board-certified Physician Assistant who has specialized in aesthetic medicine since 2015.  She is the Vice President of Clinical Operations and an Advanced Injector at HTB Aesthetics in San Marcos, CA. 


Katie co-founder the HTB aesthetics Academy and has a passion for education - seasoned and aspiring injectors as well as business leaders.  Her philosophy is collaboration over competition.  She believes that together we can uplift the aesthetic industry to provide better, safer and more natural results for all patients.


As a highly-sought after GAIN trainer with Galderma for Restylane, Dysport and Sculptra, she travels the country to train other injectors in safe techniques with natural results.  Katie also speaks for Galderma on podium and is a member of the prestigious Sculptra Center of Education program.


Katie also serves as an Alastin Skin Care Key Opinion Leader and speaks across the nation.


She is a National Speaker at industry conferences such as The Aesthetic Show, Vegas Cosmetic Surgery, MAC San Diego, Aesthetic Next and AMWC.  She passionately speaks on broad topics from business to leadership and clinical treatments.


  • Vice President of Clinical Operations & Advanced Injector at Holden Timeless Beauty

  • Co-Founder  & Director of Clinical Education of the HTB aesthetics Academy

  • National GAIN Trainer & Faculty

  • National Alastin KOL

  • National Speaker & Educator

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