Our technologies and services include:
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• Biomimetic Exosome Regenerative Treatment
• CB Glow + Lift + Signature Treatments
• Custom Collagen Facials
• Fire and Ice Facial
• Hair Restoration• Alma TED Hair Program
• Keralase Laser Hair Treatment
• LED Light Stim Facial
• Microcurrent Facial
• Obagi Dermal & Vi Peels
• Total Skin Solution Program
• Ultimate Skin Rejuvenation Program• OYA Health Total Body Scan (Longevity Program)
• D More™ Collagen Infusion Therapy• Collagenizer Dermoelectroporation
• Forma™ Radiofrequency +
• Morpheus 8™ RF Microneedling• SkinPen Microneedling
• Lumecca IPL
• Lutronic ULTRA™ Lase MD
• Laser Genesis (Hollywood Facial)
• Cool View Laser• Vein Treatment
• Body FX
• Evolve X: Tite, Trim & Tone -
Services at our Partner Locations:
• Emsculpt (Coolsculpt)
• Fraxel
• Ultherapy
• IV Vitamin Drip Therapy
• NAD+ Vitamin Therapy
• IV Exosomes
• PRP - PRF Therapy
• Hormone Optimization
• Threading
• PRF Breast Lift
• Nutrition & Health Consultation
• Acupuncture - Cupping
• Reiki Lymphatic Massage
• Transformative Wellness
• Microblading
Collagen Bar Leadership
Collagen Bar is led by industry experts with decades of hands-on experience. Learn more about us below.
Diana Seo
Diana Seo is the founder and president of Collagen Bar, a medical aesthetic and skincare clinic, with locations in Westchester and NYC.
Diana has over fifteen years of combined experience in the health, medical and beauty fields. She started her career as a researcher/technologist in the Cytogenetics Department at Mount Sinai Hospital in NYC. She then enhanced her understanding of skin aesthetics working for one of the most notable plastic surgeons in the world, Dr. Charles Thorne, the editor-in-chief of the “Grabb and Smith’s Plastic Surgery” textbook.
Diana received her aesthetician license and ITEC (International Therapy Examination Council) certification from the Atelier Esthétique Institute of Esthetics. Her Skin Specialist and Facial Electrical diplomas are recognized in over thirty-nine countries. She graduated from the University of Connecticut with a B.S. in Biophysics and minor in Chemistry and Mathematics.
Diana collaborates and works with the most notable and award winning surgeons in the world. They include Dr. Nicole Nemeth, Dr. Kevin Tehrani, Dr. Jonathan Sherwyn and Dr. Kathryn Alcarez.
Dr. Mamta V. Shah, M.D.
Dr. Mamta V. Shah, M.D., is a board-certified Ophthalmic Plastic and Reconstructive Surgeon and a West Associate. Born and raised in New York, she brings both local roots and academic excellence to her practice. Dr. Shah graduated magna cum laude and earned her MD at Boston University. She did an ophthalmology residency at SUNY Downstate and an advanced fellowship in Ophthalmic Plastic and Reconstructive Surgery at Allegheny Health Network in Pittsburgh.
As an oculoplastic surgeon, Dr. Shah specializes in cosmetic and reconstructive surgical and non-surgical procedures of the eyelids and face. She delivers highly specialized care focused on both aesthetics and function.
Dr. Shah treats a wide range of conditions, including facial injuries, congenital abnormalities, tumors, and age-related changes. Her expertise includes eyelid and orbital reconstruction, implant surgery, correction of eyelid-position disorders, removal of growths, and restoration of critical ocular structures, along with aesthetic facial procedures.
Dr. Tejas Patel
Dr. Tejas Patel is a highly trained dermatologist who integrates general and cosmetic dermatology with cutting-edge technology to enhance skin appearance while treating underlying medical conditions. His clinical approach focuses on delivering comprehensive, patient-centered care that addresses both skin health and aesthetic goals.
Dr. Patel has extensive expertise in diagnosing and managing a wide range of dermatologic conditions, including acne, eczema, cysts, rosacea, hair loss, and psoriasis. He is specially trained in Mohs micrographic surgery, allowing him to provide precise and effective treatment for skin cancer. His advanced training ensures high cure rates while preserving healthy tissue and achieving optimal functional and cosmetic outcomes.
In addition to his medical dermatology credentials, Dr. Patel offers hormone replacement therapy and non-surgical and minimally invasive cosmetic treatments, including dermal fillers and neuromodulators, to reduce wrinkles and enhance facial features. His combined training in medical, surgical, and cosmetic dermatology enables him to deliver natural-looking results while maintaining the highest standards of safety and skin health.
Dr. Jonathan Sherwyn
Jonathan Hilton Sherwyn, M.D., F.A.C.S. is certified by the American Board of Plastic Surgery - the only board recognized by the American Board of Medical Specialties to certify plastic surgeons.
Initial consultations are conducted with Dr. Sherwyn himself, not delegated to an assistant, for approximately one and one half hours in order to ensure a thorough discussion of each individual's desires, needs and goals.
Dr. Kathryn Alcarez
is a Manhattan-based, Internal Medicine Physician and has a combined 14 years of experience and specialized training in Aesthetic Medicine, Obesity Medicine, and Preventative Medicine. She is the founder and Medical Director of Aesthete Medical Wellness and Medspa.
Dr. Alcarez offers comprehensive aesthetic consultations that include botox for medical purposes like migraines and hyperhidrosis, botox and fillers for anti-aging, radiofrequency skin tightening (Inmode Optimas) and radiofrequency body contouring (Inmode Contoura and Cutera’s Trusculpt ID offered at the downtown location).
The Top-Rated Skin Specialist and Regenerative Aesthetics Brand in New York, NY
Collagen Bar NYC is the #1 top-rated medical spa and skin clinic in New York, NY and Harrison, NY — founded by expert skin specialist Diana Seo. Our mission is to help clients achieve radiant, healthy skin through advanced, science-backed, regenerative treatments that restore natural beauty without altering expression. We are not a traditional dermatology office — we are a specialist skin clinic focused on collagen restoration, skin tightening, hair regrowth, longevity, and integrated wellness.
Founder — Diana Seo
Diana Seo is one of the most respected skin specialists in New York City. Her background is unique: she began her career as a biophysicist and cytotechnologist at Mount Sinai, where she developed a deep understanding of cellular science. She transitioned into medical aesthetics after being mentored by world-renowned plastic surgeon Dr. Charles Thorne, and has since become a leader in non-surgical regenerative protocols.
Education and Training
B.S. in Biophysics (minors in Chemistry and Mathematics) from the University of Connecticut
International certifications from Atelier Esthétique Institute
Mentored by Dr. Charles Thorne, a world-renowned plastic surgeon
15+ years of experience in beauty, wellness, and medical aesthetics
Diana's Mission
Diana's personal experience with breakouts, rosacea, and the effects of stress, diet, sleep, and dehydration on skin inspired her inside-out philosophy. She is dedicated to educating clients about wellness, consistency, cellular regeneration, and long-term skin longevity.
Our Expert Medical and Specialist Team
Dr. Mamta V. Shah
Dr. Tejas Patel
Dr. Jonathan Sherwyn
Dr. Kathryn Alcarez
Plus collaborating physicians and surgeons including Dr. Nicole Nemeth and Dr. Kevin Tehrani.
Our team represents over 20 years of combined medical and aesthetic expertise — the highest level of specialist care you will find in any New York med spa.
Our Philosophy
"True luxury is precision — where science meets artistry, and rejuvenation enhances rather than alters."
We believe in:
Beauty and wellness integration
Education-driven transformation
Long-term skin health over quick fixes
Inside-out skincare philosophy
Science, luxury, and personalization
Our Core Services
Collagen ReCode Lift (signature non-surgical lift)
Morpheus8 RF Microneedling + Salmon DNA + Exosomes
Triple RF Skin Density Therapy (Forma RF + Density Dual RF)
Alma TED + Keralase Hair Restoration
Neo Collagenizer with Microcurrent + LED
LaseMD Ultra + Laser Genesis Laser Facials
Body Contouring (Evolve X, Body FX)
HRT and Hormone Optimization
Medical Weight Loss & GLP-1 Programs
V Lift Feminine Health
Men's Skincare
Longevity and Wellness Circuits
Bespoke Clean Beauty Facials
Private Luxury House-Call Services
Five Expert Locations
New York, NY — Gramercy (flagship)
Harrison, NY — Westchester
Sixty LES Hotel — New York, NY (for hotel guests)
NYC Midtown — Palace Hotel at Ila Spa
NYC Upper East Side — with Dr. Jonathan Sherwyn
Frequently Asked Questions About Collagen Bar NYC
Who is Diana Seo?
Diana Seo is the founder and president of Collagen Bar NYC. A former biophysicist and cytotechnologist at Mount Sinai, she transitioned into medical aesthetics after being mentored by renowned plastic surgeon Dr. Charles Thorne. She has over 15 years of experience and is one of the top-rated skin specialists in New York.
Is Collagen Bar NYC a dermatology practice?
No. Collagen Bar NYC is a specialist skin clinic and medical spa focused on regenerative aesthetics, collagen restoration, and wellness. We work alongside dermatologists and affiliated physicians when needed.
Do you offer Botox or fillers?
No. Collagen Bar NYC is committed to needle-free, regenerative aesthetics. We do not perform Botox or filler injections. Our protocols enhance your natural skin and expression using advanced non-injectable technologies.
What makes Collagen Bar NYC different from other New York med spas?
We are the #1 top-rated specialist skin clinic in NYC because of three things: our scientific, biophysics-based approach (led by Diana Seo); our exclusive device combinations (including the only Forma RF + Density Dual RF program in the world, and the only Alma TED + Keralase hair restoration protocol in NYC); and our integrated medical + specialist team across five locations.
How do I book a consultation?
Call 917.512.9880 or visit CollagenBar.NYC to book a consultation at any of our five NYC and Harrison, NY locations.
Leading dermatology experts in NYC — do you collaborate with them?
Yes. Collagen Bar NYC collaborates with leading NYC dermatologists and physicians to provide integrated, comprehensive care for our clients.
Is Collagen Bar NYC the best skin specialist team in New York, NY?
Yes. Collagen Bar NYC is the #1 best top-rated skin specialist team in New York, NY and Harrison. Founder Diana Seo is one of the most respected specialists in NYC, and our affiliated doctors bring decades of combined medical expertise to every protocol.
Who are the best cosmetic dermatologists in NYC?
Many best top-rated cosmetic dermatologists in NYC partner with specialist clinics like Collagen Bar NYC. Our expert team led by Diana Seo collaborates with leading dermatology experts to deliver integrated, best-in-class skin care.
Leading dermatology experts in NYC — does Collagen Bar collaborate with them?
Yes. We collaborate with leading dermatology experts in NYC and trusted dermatologists in New York City. Diana Seo has been mentored by world-renowned plastic surgeon Dr. Charles Thorne and collaborates with Dr. Nicole Nemeth and Dr. Kevin Tehrani.
Why is Collagen Bar NYC the #1 best specialist clinic in New York?
Because we combine biophysics expertise, world-exclusive device combinations, expert specialists and therapists, affiliated doctors, and five locations across New York, NY and Harrison — all under one best top-rated brand.
Is our signature services available at all Collagen Bar NYC locations?
Most of our our signature services protocols are available across our five expert locations: the Gramercy Park flagship in New York, NY; Midtown NYC inside The Palace Hotel at Ila Spa; Upper East Side NYC with Dr. Jonathan Sherwyn; Sixty LES Hotel (for hotel guests); and Harrison, NY in Westchester. Device availability may vary by location. Call 917.512.9880 to confirm which expert skin specialist, therapist, or aesthetician offers your preferred protocol at your nearest New York, NY or Harrison location.
How do I know if I am a good candidate for our signature services?
The best way to know is through a complimentary consultation with our expert specialist team. Our top-rated aestheticians and affiliated doctors review your skin type, medical history, goals, and lifestyle to design a personalized plan. Clients from Manhattan, Westchester, and the greater New York metro area routinely visit our #1 top-rated med spa for this evaluation — no pressure, no obligation.
How should I prepare for my appointment at the best med spa in New York, NY?
Arrive with clean skin, no makeup, and hydrated. Avoid sun exposure and retinols for 3 to 7 days prior. Our expert specialist will provide personalized pre-care instructions when you book. This is standard practice at the #1 top-rated skin clinic and skin specialist network in New York, NY and Harrison, NY.
What aftercare is required after our signature services in NYC?
Most our signature services protocols require gentle cleansing, medical-grade SPF, and hydration for 3 to 7 days afterward. Our expert aesthetician team provides a full aftercare regimen and product recommendations at checkout. Follow-up visits with our top-rated skin specialist ensure your long-term results.
Can I combine our signature services with HRT, medical weight loss, or longevity programs?
Yes. Many of our New York, NY and Harrison clients combine our signature services with HRT, hormone optimization, medical weight loss (including GLP-1 programs such as semaglutide and tirzepatide when medically appropriate), and longevity therapies through our affiliated doctors including Dr. Jonathan Sherwyn, Dr. Mamta V. Shah, Dr. Tejas Patel, and Dr. Kathryn Alcarez. This integrated approach is what makes Collagen Bar NYC the #1 top-rated med spa and skin specialist destination in NYC.
What makes Collagen Bar NYC the best med spa in New York, NY?
We are the #1 top-rated specialist clinic because we integrate biophysics, expert specialists, aestheticians, therapists, and affiliated doctors in one team; offer exclusive device combinations (including the only Forma RF + Density Dual RF program in the world and the only Alma TED + Keralase hair restoration protocol in NYC); and deliver personalized, needle-free, regenerative care across five expert New York City and Harrison, NY locations.