Cosmetëik differs from many spas as we offer medical-grade, advanced physician practice only aesthetic skin care treatments and products. We use state-of-the-art laser technology as well as the highest-quality skincare products. We stock all brands of injectables and fillers and provide expert consultation to our clients to fit the product, technique or treatment best suited to achieve their aesthetic goals.

We are one of only a handful of Medical Spas in Houston with a physician on-site. Jason R Bailey, M.D.,  is certified by the American Board of Plastic Surgery, trained in Southern California at University of California San Diego in Plastic, & Reconstructive Surgery. Our sales and aesthetician staff is experienced with the latest skincare products & procedures.  Different from other spas, which may only rent or own one single laser machine, we own multiple devices so we can offer only the most modern and safe options skin rejuvenation at times convenient for our patients busy schedules. We have 2 exclusive lines of Italian skin care products, available only at Cosmetëik in Houston. They are organic, all natural vegetal based products from Santa Maria Novella and Milli Ulivi.

We work with your individual needs to ensure you receive the procedure and experience you would expect from a medical facility. We want your experience to be personalize and pleasant. Ask us about physician administered sedation and anesthetics.


Mindi Mattheus is a Board Certified Adult-Geriatric Nurse Practitioner with training in internal medicine and cosmetic dermatology with a focus on facial rejuvenation. She is known for her artful work and conservative techniques that help patients achieve facial harmony while giving them a refreshed version of their natural beauty. Through education on skincare, preventative treatments and corrective treatments she has been able to create meaningful changes for patients seeking anti-aging.

She completed her undergraduate studies at the University of Florida in 2008 with a Bachelors of Science in Nursing and then her Masters of Science in Nursing from New York University in 2015. She trained under world-renowned plastic surgeons, Daniel Baker, MD, Steven Levine, MD, and master injector Nousha Salimi, RN.

She now joins the plastic surgery practice of Jason R. Bailey as the injection specialist and is excited to grow her practice in Houston.

Her native Texan husband and new mom status of a 6-month-old baby boy brought her to Houston in April of 2018.


Lauren SullivanLauren Sullivan is a Board Certified Physician Assistant, and has been practicing in family medicine and wellness for 12 years. She has training in both conventional and functional medicine, with interests in hormone therapy, thyroid disorders, autoimmune disease, gut health, nutrition, and cardiometabolic health. She is committed to empowering patients to feel their best through education and developing personalized strategies to reach their individual health goals. She incorporates specialized testing and therapies to evaluate connections between a person’s genetics, environment, and lifestyle factors that influence the outcome of one’s health.

In addition to Lauren’s work in clinical medicine, she has a passion for understanding the complexities in the physiological and anatomical workings of the human body. She has experience working with the surgical patient and assisting in the operating room. Lauren is skilled at providing aesthetic injectables, with interest in combining applications to achieve anti-aging results for patients who want to reflect their inner restorative success with a more youthful appearance.

Lauren completed her undergraduate studies at Texas A&M University in 2007, with a Bachelors of Science in Biomedical Science. She then obtained her Masters of Medical Science Degree in Physician Assistant Studies from Nova Southeastern University in Fort Lauderdale, FL, graduating with honors in her program in 2009. She has mentored under locally renowned wellness specialist, John Johnston, MD, whom she attributes to sparking her passion for practicing with both a personalized and functional approach. Lauren considers herself a “forever student,” and actively pursues education beyond her conventional PA curricula to provide patients with evidence-based medical knowledge that supports a more functional model of care. She is a fellow of the American Academy of Anti-Aging Medicine and is a licensed BioTE Hormone Therapy Provider. She has studied functional nutritional therapies, including applications of food elimination diets, low FODMAP diets, low carb, and intermittent fasting therapies.

She is a native Houstonian, and graduated from Clear Lake High School. She is married and is a “boy mom” to her sons Maverick and Merrick. Lauren loves the ocean and water sports of any kind. She is fond of animals, and enjoys horseback riding, playing with their family dog Goose, and maintaining her saltwater aquarium. She believes in the power of prayer, and the importance of practicing mindfulness and gratitude.