About Energize Testosterone & Wellness Center

Energize Testosterone & Wellness Center is a functional and integrative practice welcoming men and women for personalized care in O’Fallon, Missouri. Nurse practitioner and founder Jennifer McElfresh, MSN, APN-BC, compassionately listens to every patient’s needs in order to tailor their care plans accordingly. Through years of experience, she’s learned the value of care individualization and a close patient/provider relationship. 

Jennifer began her medical career at age 18 as a hospital corpsman in the United States Navy. She then attended Saint Louis University in St. Louis, Missouri, for her bachelor’s degree, physician assistant studies, and accelerated nursing program. She later earned her master’s degree from Maryville University in Town and Country, Missouri, before serving an additional sixteen years in the United States Air Force. 

Today, Jennifer enjoys using her skills to better the lives of her patients at Energize Testosterone & Wellness Center. Her specialties include hormone replacement therapy and bioidentical testosterone replacement therapy, erectile dysfunction treatment, and weight loss with semaglutide. 

Jennifer also proudly provides an array of confidence-boosting aesthetic procedures, including high-class injectables like Botox® and reinvigorating dermal fillers. Aesthetic procedures are all nonsurgical and available to most people interested in enhancing their appearances. 

Call Energize Testosterone & Wellness Center or book a visit online to explore wellness and aesthetics services today.