Everything is Connected
Meet Dr. Sanchez
Stanford-Trained Surgeon | Longevity Strategist | Precision Performance Expert
Dr. Barry Sanchez M.D.
Dr. Barry Sanchez is a board-certified surgeon with over 20 years of clinical experience and training from Stanford University. As the founder and clinical force behind From Within, he is redefining what modern health looks like—helping high-performing individuals unlock peak energy, mental clarity, and long-term vitality through precision, root-cause medicine.
After decades in conventional medicine, Dr. Sanchez grew disillusioned with how often the system settles for “normal.” His philosophy is different: normal isn’t optimal. True health is when your body, brain, and biochemistry are all aligned—and fully optimized for performance and longevity.
Every client protocol at From Within is built from Dr. Sanchez’s clinical insight, whether or not clients meet him directly. His strategic oversight shapes each recommendation, combining advanced diagnostics, bioidentical hormone therapy, peptide protocols, and cellular optimization to create deeply personalized care. Clients aren’t just accessing a physician—they’re investing in his vision, precision, and decades of integrative expertise.
Dr. Sanchez holds one of the most advanced certifications in peptide therapy through the SSRP Institute, and remains on the leading edge of science in resilience, aging, and high-performance medicine. His core belief: everything in the body is connected—from gut to brain, mitochondria to mindset.
At From Within, the goal isn’t just extending lifespan—it’s building a life that thrives.
QUALIFICATIONS:
- University of California, Santa Barbara. B.S. in Biophyscology
- University of Southern California School of Medicine. M.D. Degree
- Santa Barbara Cottage Hospital. General Surgery Residency
- Stanford University. Minimally Invasive Surgery & Bariatric Fellowship
- Seeds Scientific Research & Performance Certification in Peptide Therapy
What we do.
From Within offers precision health programs designed to elevate performance, improve resilience, and extend your healthspan—under the clinical direction of Stanford-trained surgeon Dr. Barry Sanchez.
Founded in 2025 by husband-and-wife team Dr. Barry Sanchez and Amanda Cowan Sanchez, From Within began as a vision to house therapies like hormone optimization, peptide therapy, and functional nutrition under one roof. Today, it has evolved into a precision health practice focused on total health optimization—bridging science-backed interventions with trusted local specialists to deliver personalized, results-driven care.
We created From Within because we believe the conventional medical model is failing. It treats symptoms rather than addressing root causes, delays care until disease is present, and offers little in the way of true prevention. Insurance companies reinforce this model, limiting access to care until someone is already unwell.
We know there’s a better way.
Our approach is proactive and whole-person. We dig beneath the surface to uncover the real causes of fatigue, brain fog, weight gain, digestive issues, poor sleep, anxiety, and hormonal imbalance—recognizing that everything in the body is connected: gut to brain, hormones to mood, cellular health to energy.
Every client journey is built around our five foundational pillars:
Detoxification, Cellular Health, Functional Nutrition, Movement, and Mentorship—each essential to creating sustainable, inside-out transformation.
We work exclusively through structured health programs lasting a minimum of six months. This allows us to go beyond symptom management and guide you through the depth of healing, optimization, and growth that real, lasting change requires.
Our mission is to help high performers thrive—not just by preventing illness, but by unlocking the vitality, clarity, and confidence that comes from true optimization.
Our Five Pillars of Precision Health
At From Within, we don’t believe in quick fixes or one-size-fits-all protocols. True health transformation requires a systems-based, whole-body approach—and that’s where our Five Pillars of Precision Health come in.
Each of these pillars plays a critical role in restoring and optimizing your biology. They are interconnected, and when addressed together, they create the foundation for lasting energy, resilience, and performance. Whether you’re here to resolve long-standing symptoms or take your health to the next level, these five pillars guide every client journey.
Detoxification
The average person is exposed to over 700,000 toxic chemicals every day—from food, water, air, and personal care products. Most people are living with a toxic overload that impairs metabolism, hormones, immune function, and energy. Detoxification is not a trend—it’s a necessity for modern health
Cellular Health
Up to 80% of chronic conditions are linked to mitochondrial dysfunction. including fatigue, neurodegeneration, metabolic disorders, and immune dysregulation. When your cells lose power, everything downstream suffers—energy, focus, performance, and recovery. Optimizing cellular health is foundational to feeling truly we
Functional Nutrition
Over 70% of the immune system resides in the gut3, yet decades of processed food, antibiotics, chronic stress, and environmental toxins have led to widespread dysbiosis. In fact, studies show the average Western adult has lost up to 30% of gut microbiome diversity compared to traditional populations. Without a healthy gut, the body cannot properly absorb nutrients, regulate inflammation, or maintain hormonal balance
Movement
Movement is essential for detoxification, blood sugar regulation, hormonal balance, and longevity. It boosts circulation, mood, energy, and mitochondrial function—supporting every other pillar of health.
But not all movement is created equal. Overtraining or undertraining can sabotage results. That’s why we personalize your movement plan based on your current physiology, stress levels, and goals—ensuring every workout moves you closer to optimal health.
Mentorship
Even the highest performers don’t go it alone. Top executives, elite athletes, and visionary leaders all work with mentors, coaches, and strategists to stay focused, accountable, and aligned with their goals. Why? Because transformation isn’t just physical—it’s mental, emotional, and behavioral.
At From Within, mentorship is the glue that holds everything together. We guide you through change with mindset coaching, personalized support, and real-time course correction—so your results aren’t just temporary, they’re life-changing.
Hear from our Clients.
I already had had a healthy lifestyle and diet but needed guidance to help me understand that what had worked for me in the past needed some adjusting. Enter this unicorn of a woman…Amanda! Her coaching and peptides are just magic! She helped me reduce the hundreds of dollars I was spending on over-the-counter vitamins and supplements, adjusted my diet (I actually needed to eat MORE) and started me on a tailored peptide protocol created especially for me.
When I say she nailed it, that is an understatement. I am feeling and looking so much better. My clothes all fit me again (hallelujah!), my skin is glowing, I have energy again and my self-esteem is restored! Grateful!"
Within weeks, I noticed faster recovery, reduced pain, and better performance. My energy increased, my sleep improved, and I felt stronger during training and competition- for instance, I can do higher intensity without many recovery days in between. I have also not been “sick” for 2 years. I know the peptides have been the cause.
Dr. Sanchez’s expertise in peptides and personalized approach gave me the edge I needed—not just to recover, but to perform at my absolute best. He is not only knowledgeable - he’s kind and caters to everyone’s individual needs based on their fitness, age, and goals.
If you’re looking to optimize recovery, performance, and longevity, I highly recommend From Within and their peptide therapy program. Trust me- I’m living proof the peptides work!”
I also was looking for skin healing and improvement after having several skin cancer lesions removed. She recommended a combination of BPC-157, GHK-CU & TB-500 for a period of 6-8 weeks. After completing the regimen, I can report some remarkable changes and improvements.
My taste and smell are back after being gone for 4 years! My hand tremors have greatly improved and my skin and hair show improvements, most notably my skin healed quickly from a cancer peel. I have to say my spine and hip aches have improved as well."
Feeling more like “me” than I have in a long time. I’m now working with Amanda to incorporate peptides and nutritional changes to improve my overall health and I’m already losing weight and moving more."
So far, the aches and pains in my joints and feet are gone. I can hike 5 miles and still feel great whereas I used to feel quite tired and sore afterwards. Overall, I’m feeling great.
My skin hasn’t felt this good in nearly two years. Additionally, since starting KPV, my digestion has improved dramatically. My body processes food much faster, and all post-meal bloating has completely disappeared.
I began Tirzepatide at a micro-dose, and the changes have been remarkable. My eating habits have improved dramatically—I feel full longer, my portion sizes have decreased, and, most importantly, my late-night cravings have completely disappeared. I used to wake up in the middle of the night, still half-asleep, raiding the kitchen out of sheer hunger. Since starting Tirzepatide, that has never happened—not once. In fact, I sleep through the night without interruption. I’m beyond grateful for both peptides!
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