PW
California Skin Institute-San Mateo, San Mateo, CA 944017960.15 miles
Dr. Webb is a board-certified dermatologist who trained at the University of California in San Francisco in dermatology. He specializes in medical, cosmetic and surgical dermatology including Mohs surgery. Prior to medical school, he attended Princeton University where he earned a PhD in biochemistry. He has practiced dermatology in San Mateo for many years, and joined CSI in 2014. He trained his daughter Hilary Johnston, PA-C, who also practices at CSI in San Mateo.
MD, PhD
46 years of experience
Skin Concerns addressed by Peter Webb, MD, PhD
Skin Procedures addressed by Peter Webb, MD, PhD
PRP for Acne Scars: With or Without Microneedling?
GLP-1 Medications for PCOS: What to Know
The Rise of Beauty Elixirs: Do Ingestible Skincare Products Actually Work?
The Real PRP Downtime Timeline
The Truth About Peptides in Skincare
The Power of Overnight Repair: Nighttime Skincare That Actually Work
Stuck in Research Mode? Here’s Why You Haven’t Booked That Cosmetic Procedure
Should Your Allergist Know Your Aesthetic Routine?
Chinese-Rooted Beauty Secrets—Do They Work?
The Rise of the Super Power Spritz: Can a Face Mist Actually Protect Your Skin?
Good Bacteria, Better Skin: The Microbiome Era of Skincare
The New Face of HRT: Is Hormone Therapy the Ultimate Beauty Treatment?
The Rise of Testosterone Therapy in Younger Men
Under-eye Filler: The Most Controversial Injection in Aesthetics
In 2026: How Much Does It Really Cost to Maintain a “Natural” Look?
The Overcorrection Era: When Anti-Aging Adds Years
Beauty After Weight Loss: How To Maximize Your GLP-1 Glow-Up
Bakuchiol vs Retinol: What’s the Real Difference?
Laser Season Starts Now: Your Summer Skin Timeline
Skin Longevity vs Quick Fixes: Aesthetic Care Evolves
Prejuvenation 101: The Ultimate Skincare Routine in Your 20s and 30s
Laser Hair Removal & Skin Tone: What You Should Know
Hair Restoration in 2026: The Regenerative Era
Circadian Beauty: What Really Happens to Your Skin at Night
