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Medicine With a Different Focus

Rejuvagen is here to help you become the healthy person you deserve to be. Through strategic functional testing, expert analysis, dietary guidance, and lifestyle modification, we help your body repair and regenerate so you can get back to the life you’re meant to live.

Identify the Cause

We work with you to identify your
unique causes of cellular stress.

Reduce Stressors

We help you reduce or eliminate your
stressors to bring your body
back in balance.

Support Healing

You'll learn to support your body's natural
healing process so you can experience
true health and vitality.



The Thyroid Debacle

Why the Current Medical Model is Keeping You Sick and Unwell by Eric Balcavage, DC


Despite seeing dozens of doctors and thyroid specialists, being treated with thyroid medication, and having “normal thyroid labs” you still don’t feel well. Maybe you’re exhausted, gaining weight, losing hair, and feeling depressed, foggy, or anxious.


You’re not crazy. You’re not alone. And it is not your fault.


You’re simply stuck in the middle of a Thyroid Debacle.


Our Specialties


Learn About Thyroid Health From Dr. B

What to Do If You’ve Had Your Thyroid Gland Removed

In this video, I’m addressing what to do when you no longer have a thyroid gland and can’t find a dose of medication that helps you feel well. This is for anyone who’s had a thyroidectomy, or even anyone who’s been diagnosed with hypothyroidism and is on medication but is still struggling to find the “magic” dose.

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Why Is My T3 Low?

Here are four reasons I’ve identified why your T3/fT3 levels might be low despite taking thyroid medication (and why taking more T3 won’t help).

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Calling All Thyroid Clinicians

Stop practicing with an outdated model of care. Start helping your patients feel better today.

In their brand new course *just for healthcare professionals* Dr. Balcavage and Dr. Halderman will teach you a revolutionary new approach to thyroid physiology that will completely change how you view, test, and treat thyroid disorders.

This isn’t what you learned in medical school – but it works.


Stop Chasing Symptoms. Get Lasting Results.

Our Functional Medicine practice is one of the most unique in the entire country.

We start by getting to the basics of what causes health challenges including the primary stressors: Physical, Chemical, Emotional, and Microbial. At Rejuvagen, treatments are personalized based on the patient’s unique individual biological needs. Through advanced therapies and functional testing not offered in the traditional medical model, we can identify when the body is not functioning correctly and potentially address the problems before disease is even identified.


Dr. Eric Balcavage

Dr. Eric Balcavage is a leading functional medicine expert with a focus and passion for thyroid physiology. He consults with people local to his Philadelphia area practice as well as those in other areas of the country and world.

Dr. Balcavage has lectured locally, nationally, and internationally on his unique approach to thyroid physiology and thyroid conditions. He is the co-host of the Thyroid Answers Podcast as well as being a guest on multiple health related podcasts.


Latest Episodes of Thyroid Answers


What Our Clients Are Saying...

Devon Lewis
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My initial reason for consulting Dr. Balcavage was for hair loss. I was also having stomach/digestive problems and I was getting sick on a regular basis needing antibiotics regularly. The care that I received at Dr. Balcavage’s office improved my primary complaints as well as my overall health. As long as I take the current supplements recommend by Dr. Balcavage, my hair is no longer falling out. Following Dr. Balcavage’s diet and health recommendations has eliminated my stomach and digestive issues and I have not gotten sick or needed antibiotics. I would recommend Dr. Balcavage’s office to others. He has improved my quality of life exponentially! In my experience, if you put the work in following Dr. Balcavage’s instructions you will feel better!
Jennifer Coates
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The main challenges I was consulting Dr. Balcavage for were thyroid issues, vertigo, tailbone pain and headaches. The care I received helped me to get my life back! My headaches and vertigo are gone. I follow a better diet which is helping with my thyroid issues. My sleep is better and I have more energy. I have recommended Dr. Balcavage to several people, one I know of has signed on as a patient. I even tell strangers in doctors’ offices about Dr. Balcavage. I recommend your office because of the results I got!
Olga Krasavina
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After seeing few different doctors in a one year of what seemed like eternity, going through different detoxes, flushes, pills, being somewhat may be diagnosed, yet getting worse.. I finally found Dr. Balcavage. During our introductory meeting I was supposed to write down 5 things that I wanted him to help me with... those were 5 symptoms that lowered my quality of life, 5 symptoms that other doctors disregarded or told me I will have to deal with for the rest of my life. 4 months later, he did it! He fixed me! Finally, for the first time in very many years, I have no complaints!
Roy Penman
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There was a time that I thought I was in good health. After fighting with constant knee pain I was introduced to Dr Balcavage originally to ease joint discomfort. Once under his care the outcome changed my life. I didn't realize that for many years what I was eating was doing me more harm than good. Inflammation is only the tip of the iceberg with a host of other problems that are related to what we eat. I was in a secret agony. Under Dr Balcavage's care I was taught what to eat and what foods to avoid for better health. Together with supplements, that are based on real food not chemicals, combined with exercise and a healthy eating habits is the perfect combination to live by. I don't know where I'd be without the guidance of Dr Balcavage.
Tina McDevitt
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I have been a patient of Dr. Balcavage’s for a number of years, and I have always received exceptional and comprehensive care. He has changed my life by changing my health. He diagnosed me with celiac intolerance, which had greatly impacted my health, metabolism and digestion. By following his treatment protocol, I not only feel 100% better, but I also lost weight, which I have maintained for over a year. I highly recommend Dr. Balcavage, as he provides a holistic approach to ensure long- term good health.
Call 610.558.8920 or click to book your free 15-minute call.
Get a Free Health Evaluation

Hi, I’m Dr. Eric Balcavage, owner and founder of Rejuvagen. If you’re struggling with health issues or have questions, let’s chat. You can schedule a 15-minute call with me to get started.