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An Austin Original

One of Austin's first Medical Spas, open since 1998.


We specialize in non-surgical and non-invasive treatments such as Botox, filler, skin tightening and skin rejuvenation. We also offer a wide range of medical grade skincare lines. All of our treatments are provided by registered nurses under the supervision of our TOC Eye and Face physicians.

Our Doctors

As one of Austin’s original medical spas, TOC Medical Spa provides expert personalized solutions for restoring and maintaining healthy skin. All of our treatments are provided by registered nurses under the supervision of our TOC physicians.

Our Board Certified Doctors perform thousands of eye and face surgeries every year. With over 100 years of combined experience, TOC Eye and Face is dedicated to helping patients and doctors reach their goals.

The TOC Medical Spa Team

Our experienced team of registered nurses and aestheticians are passionate about what they do! They always put quality and care first, and strive to surpass your expectations.


Theresa Allen, RN

Theresa Allen is a graduate of the University of Texas at Austin, where she earned a Bachelor of Science in Nursing with Highest Honors. She has worked continuously in nursing for 43 years at various Austin hospitals including 21 years at Seton Medical Center. While there, she worked primarily in surgery including cardiovascular, neurological, ENT, trauma, plastic and reconstructive procedures. She also served as the Orthopedic Nurse Specialist in the OR and as an intensive care unit nurse. Theresa has extensive experience in the specialty areas of ophthalmic and oculoplastic surgery. She gained much of that experience in CAREOS, the on-site ambulatory surgical center at TOC Eye and Face. Theresa has been an aesthetic provider with TOC since 1998 and completed various trainings and certifications in all cosmetic treatments. This includes neuromodulators (such as Botox), facial fillers, IPL and laser treatments with special interest in Sciton Halo procedures. In addition to her nursing education, Theresa was initially an art major at the University of Texas. This gives her an appreciation for all things aesthetic. In her spare time, Theresa loves researching new products, reading, spending time with family but most of all participating in animal and wildlife rescue causes.

Meredith Brethé, RN

Meredith Brethé, RN has for years enjoyed integrating the specialized skills and knowledge required in aesthetic nursing  with  her equally strong surgical/perioperative nursing background. An honors graduate of Baylor University with a bachelor’s degree in Nursing, she worked at Baylor Medical Center in Dallas and the operating rooms of St. Luke’s Episcopal/Texas Heart Institute of Houston before making Austin her home. Meredith has had extensive experience in both public and private hospital surgical nursing locally. She was a CNOR (certified operating room nurse), Head Nurse, and RN IV for many years at Brackenridge Hospital’s operating rooms, with experience in all subspecialties as well as trauma surgery nursing. As her children grew older, she moved into surgical/perioperative nursing at several outpatient general and plastic surgery centers. Her experience in plastic and reconstructive surgical nursing led to a deeper interest in procedures involving eye and facial structures, furthered by her years here at CAREOS, TOC’s on-site ambulatory surgery center. The transition to aesthetic nursing in our office setting was a natural evolution for Meredith, and she’s remained fascinated with the ever-evolving science, techniques, and materials that are integral to a skilled aesthetic nursing practice. Meredith has been an aesthetic provider with TOC since 1998 and completed various trainings and certifications in all cosmetic treatments. Meredith enjoys the opportunity to combine nursing knowledge and technical skill with an aesthetic eye and deep interest in the nuanced possibilities for restoration, enhancement, and rejuvenation for each individual. She takes satisfaction in establishing professional, often long-lasting relationships with patients and helping them achieve their aesthetic goals. Meredith greatly enjoys books, music, family, and especially swimming and traveling with her husband.


Angelina Detmers, RN

Angelina earned her Bachelors of Science in Nursing at the University of Texas and is currently obtaining her Masters of Science as a Family Nurse Practitioner. She has delivered patient-centered care in multiple specialties including the post-operative, cardiac, and medical/surgical settings. Angelina has spent the last four years working closely with our TOC Eye and Face surgeons as a clinical nurse where she has had the unique opportunity of training in advanced aesthetic medicine and developing a deep and extensive understanding of facial anatomy. She utilizes her specialized and advanced knowledge to deliver safe, youthful, and harmonious results. Angelina has always felt that aesthetic medicine was her true calling and she feels privileged to work alongside some of the most brilliant and incredibly skilled aesthetic nurses and oculofacial plastic and cosmetic surgeons in the country. She is committed to providing comprehensive, individually designed treatments to enhance her patient’s natural beauty and confidence.

Andrea Guidry, RN

A longtime Austinite, Andrea earned a Bachelor of Science in Nursing from the University of Texas and a Master of Science in Counseling-Psychology from Mary Hardin-Baylor University.  Early in her career, she worked as a surgical nurse at Brackenridge Hospital, caring for patients undergoing cardiovascular, neurological, ENT, trauma, and plastic and reconstructive surgeries.  Later she served as the Nursing Director for a private outpatient surgical center where she worked with an array of Austin's finest plastic surgeons. In 1999, Andrea began her career with TOC as an aesthetic nurse consultant, treating patients with Botox, lasers, fillers, and other skincare procedures. A volunteer with Austin Smiles since 1994, she  has worked with medical mission teams of surgeons, nurses, and ancillary medical staff to provide surgical care for children in need of cleft lip and palate repair in Central America (Guatemala, El Salvador, Nicaragua) and Mexico.  Andrea  is impassioned about blending missionary work with world travel and has been fortunate to visit Uganda with the Kamukama Foundation and Cuba with Covenant Church. Andrea also enjoys outdoor bicycling, hiking, and traveling adventures with her husband. 


Dawn Sasiela, RN

Dawn Sasiela, RN, BSN received her Bachelor of Nursing Degree from Hartwick College in New York State.  She spent eleven years practicing inpatient care in a variety of subspecialties before transitioning into medical aesthetics over in 2005.  Dawn has worked with several prominent plastic surgeons in Austin and has been able to build on her own aesthetic practice and skills over the years.  Dawn is certified in injectables and is proficient with multiple laser platforms.  She enjoys keeping up with the latest treatment options in aesthetic medicine and educating her clients on the various options and customizing their treatment plans to meet their specific goals. Dawn enjoys the relationships she has cultivated over the years with her long term clients in addition to meeting new clients. When Dawn is away from work she enjoys travel, time outdoors, gardening, bird watching, cooking and entertaining friends and family. 

Adrianna Sanchez, LMA, CLT

Adrianna is a master aesthetician with years of experience providing luxe facials and comprehensive laser treatments at some of Austin's top spas and Dermatology offices. Adrianna is a Licensed Aesthetician, having received her education from Avenue Five Institute in Austin, TX. Adrianna went on to study Advanced Aesthetics at Texas Laser Academy and achieved her Certified Laser Technician License. Prior to entering cosmetics and aesthetics, Adrianna served as a Nursing Assistant in the fields of Pediatrics, Oncology, and Cardiology. Her diverse background and experience helped lead her to finding her true passion helping people and making them feel confident. She is proud to be able to offer her clients a comprehensive range of treatments including various chemical peels, Hydrafacial, Skin Pen microneedling, Halo laser resurfacing treatment, and Broad Band Light (BBL) for face and body. She also enjoys working hand in hand with clients to design an individualized home care regimen. Adrianna is dedicated to changing lives through skincare and educating her patients on how to protect and correct their skin. Outside of work you can find Adrianna spending time with her husband listening to live music outdoors or trying out Austin's prolific food truck scene. 


Erin Wayt, RN

Erin Wayt has practiced as a Registered Nurse since 1998. Upon earning her Bachelor of Science in Nursing from The University of Texas at Austin, she began her career in the Neonatal Intensive Care Unit (NICU) at Seton Medical Center.  While at Seton, Erin served as a nurse clinician for preterm and very sick newborns.  She was trained and certified to place percutaneous central venous lines and to perform arterial blood gas draws on neonates.  She was also selected for additional roles such as transporting neonates from hospitals in outlying areas and assisting with high-risk and C-section deliveries. In 2001, she left Seton and began working as the office nurse for one of Austin’s most prominent plastic surgeons. It was there that Erin discovered her passion for Aesthetic Nursing.  The combination of science and art appealed to her immediately, and she has worked in this niche ever since. For every patient and with every treatment, Erin strives to achieve the perfect balance between an optimal improvement and a natural appearance. She is highly regarded in the Austin aesthetic community for her keen eye, gentle touch, and artistic talent. During her 21 years as an Aesthetic Nurse, she has completed extensive trainings and performed thousands of procedures for her very valued and very loyal clients. In her free time, she loves spending time with her family – an awesome husband, two terrific kids, a dog, and three cats.

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