CHIEF MEDICAL ADVISOR
Dr. Walter Joseph III
Board-certified plastic surgeon. Behavioral neuroscientist by training. The dual credential that lets BONJIL operate in a category no other skincare brand can.
Education
B.S. Behavioral Neuroscience, Lehigh University. MD, Rutgers–Robert Wood Johnson (Alpha Omega Alpha, top of class).
Training
Plastic Surgery residency, University of Pittsburgh (#1 U.S. program). Aesthetic Fellowship, USC. Research Fellow, Memorial Sloan Kettering.

The Clinical Perspective
“Most skincare treats what you can see. We treat what you cannot. Chronic stress quietly breaks down collagen and weakens the barrier long before it shows. The Ritual is the intervention.”
Dr. Walter J. Joseph
BONJIL Chief Medical Advisor Plastic Surgeon & Behavioral Neuroscientist
The combination that makes BONJIL possible. Behavioral neuroscience trained him to understand the cortisol pathway. Plastic surgery trained him to understand the skin. Almost no other practicing physician is credentialed in both.

Behavioral Neuroscience
The discipline that studies how the nervous system produces behavior, and how behavior modulates the nervous system. The foundation for everything BONJIL claims about the cortisol-skin axis.

Plastic Surgery
Residency at the #1-ranked U.S. program; research fellowship at Memorial Sloan Kettering. The discipline that has spent the most time studying the skin as a clinical organ.
THE EVIDENCE
The five-sense model comes from the literature
One sense reduces cortisol. Five together create a stronger, supraadditive effect—supported by 48,000 participants and four decades of research. We engineered the protocol, not the science.
Present
Chief Medical Advisor, BONJIL
Supervises every clinical claim and protocol element of the Ritual. Lead author on Position Paper N°002.
2024
Private Practice, Beverly Hills
Board-certified plastic surgery practice focused on aesthetic and reconstructive procedures.
2022
Aesthetic Fellowship, USC
Advanced training in aesthetic surgery and non-surgical technique.
2021
Research Fellow, Memorial Sloan Kettering
Research on cutaneous wound healing and reconstruction in onco-surgical patients.
2016
Chief Medical Advisor, BONJIL
Six-year integrated residency at the top-ranked U.S. program. Chief Resident in the final year.
2011
Doctor of Medicine, Rutgers
Graduated Alpha Omega Alpha, the medical-school equivalent of Phi Beta Kappa.
2007
B.S. Behavioral Neuroscience, Lehigh
The foundation. The reason BONJIL exists as a brand.
Ten publications. Two hundred and fifty citations
Selected work: Strategies for safe abdominal-wall reconstruction · Tunneled muscle-sparing breast reconstruction · The cutaneous response to mechanical stress · Behavioral neuroendocrine substrates of post-operative healing
10+
Peer-reviewed publications
Published in leading medical journals and reviewed by independent experts.
250+
Academic citations
Referenced across the scientific literature by researchers worldwide.
6
First-author papers
Original research designed, led, and published by Dr. Joseph.
Clinically backed
Three mechanisms by which Dr. Joseph is present

Every claim, reviewed
Every word on every label and page is reviewed before publication. We do not say what we cannot prove.

The 90-second video
At minute two of the Ritual, Dr. Joseph explains the cortisol-skin pathway in his own voice. The credential travels with the experience.

Quarterly Office Hours
Music Box owners are invited to a quarterly virtual session with Dr. Joseph. Twelve to twenty guests, by invitation.
Read his full study
Dr. Joseph supervised the Position Paper that anchors every claim on this site.