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Mack Stewart M.D.
Medical Doctor

Mack Stewart, M.D.

A native of Texas, Dr. Stewart graduated with a Bachelor of Science in Biology from Texas A&M University. He completed two years of biochemical research at Baylor College of Medicine in Houston and then went on to attend The University of Texas Health Science Center Medical School. Dr. Stewart became Board Certified in Family Medicine after completing his residency in 1987 at the Dallas Southwestern Family Practice Program. He went on to practice Emergency Medicine in Texas for over twenty-five years.

Over the past fifteen years, Dr. Stewart has become extremely focused on Aesthetic Medicine. He studies throughout the United States to acquire the newest advancements and studies released in Aesthetic Medicine. Dr. Stewart has become an expert in the CO2 Fractional Laser, offering various treatment options at Pure Radiance. Finding a personal need for Hormone Replacement Therapy, Dr. Stewart became a mentor and instructor for BioTE Medical. He has added the Bio-identical Hormone Replacement Pellets to his medical practice and offers it to both men and women.

Dr. Stewart has served on multiple committees including Smith County Medical Association. His memberships include: Fellow of the American Academy of Family Physicians, American Society for Laser Medicine and Texas Medical Association. He is an integral partner of ZO and Obagi Medical Products and is rated Platinum Plus by the Botox/Juvederm company, Allergan.

Dr. Stewart’s goal is to make available the most effective, non-surgical aesthetic treatments to his clients at Pure Radiance.

Call Dr. Stewart at 903-561-0300 for a consultation.

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Megan Augustus, APRN, FNP-C

Megan Augustus, APRN, FNP-C

Certified Nurse Injector / Laser Technician / Coolsculpting Technician / ThermiVA / BioTE

Megan is a Tyler native, who has been with Pure Radiance since 2017. She has been a Registered Nurse for 9 years and received her Bachelors of Science in Nursing from UT Tyler. She graduated from The University of Texas Medical Branch in December with her Masters of Science in Nursing as a Family Nurse Practitioner. Megan’s passion for the aesthetic industry and her extensive nursing background enable her to provide an advanced level of care to all of our patients.

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Leneè Sikes, R.N.

Leneè Sikes, R.N.

Laser Technician / Coolsculpting Technician / ThermiVA / BioTE

Our R.N. Leneè has been with Pure Radiance since 2016, but she has been a registered nurse for over 20 years! She has a background in plastics and dermatology, where she developed a passion for helping her patients look and feel their very best. Leneè is an East Texas native, and has called Tyler home since 2009. She loves the outdoors, just as long as she is under an umbrella, wearing a hat, and of course a medical grade SPF!

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Lydia Ruppenthal

Lydia Ruppenthal

Dr. Stewart’s Assistant / Administrative Assistant / Accounting

Lydia joined Pure Radiance in 2019 to provide accounting, administrative support, and to act as Dr. Stewart’s assistant. She has a Bachelors degree in Finance from Southeastern University. She is passionate about her work and making patients feel comfortable from the time they walk in to the time they check out. Lydia assists each patient in achieving their individual aesthetic goals and staying relaxed in the process. Originally from North Carolina, Lydia, her husband Mike, and their puppy Tito call Tyler their home.

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Ruth Rascon

Ruth Rascon

Manager / CoolSculpting Technician / Makeup Artist

Ruth has been an honest and hard-working member of our team since 2014. Ruth helps with scheduling, ordering all of our products, and is a highly skilled makeup artist and a Certified CoolSculpter. She has an extensive knowledge of all of our skincare products and helps our clients feel confident in their skin! Ruth is a Colorado girl at heart and loves spending time with her precious family.

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Gracie Harmon

Gracie Harmon

Licensed Medical Aesthetician / Laser Technician / Coolsculpting Technician / Makeup Artist

Gracie is a highly skilled licensed aesthetician in the medical skin care field who has been a dedicated member of Pure Radiance since 2017. Gracie has experience with numerous lasers, CoolSculpting, Dermaplaning, Microneedling, and Skincare. She is passionate about her work and loves her patients at Pure Radiance, where her clinical aesthetic excellence is highly prized. Gracie’s superb skill in facial science is matched by her unwavering commitment to helping patients achieve healthy, radiant skin that truly shines. Gracie is the secret to some of Tyler’s most luminous faces (including her own!).

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Skye Broughton

Skye Broughton

Administrative Assistant / Makeup Artist

Skye is a licensed cosmetologist that has a talent for servicing the needs of clients in the beauty industry. With a cheerful and inviting personality, she is determined to ensure each patient has an amazing experience from the moment they walk in, to the moment they walk out.
Originally from Arkansas, Skye and her husband now call Tyler their home.

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Kizleth Rascon

Kizleth Rascon

Administrative Assistant

Kizleth helps with patient coordinating and has been a part of our staff since 2017. Her welcoming personality helps to offer our patients with more information about our services and products. With her she brings her ample passion for patient care and watching patients’ self-confidence flourish once treatment is completed. Kizleth’s main aspiration is to provide you with an utmost and poised experience as soon as you call or enter the office.

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Shalena Cruz

Shalena Cruz

Administrative Assistant

Shalena is a Tyler native who joined Pure Radiance in 2019. She provides administrative assistance and holds a medical assistant license. Shalena strives to make you feel comfortable and stress-free as soon as you walk in the door. Prior to working at Pure Radiance, she proudly served our country for seven years in the United States Army. She brings a positive attitude and loves finding humor in life. Outside of the office, she enjoys family game nights and cooking for her husband and children.

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