BEVERLY HILLS
462 N Linden Drive, Beverly Hills CA. 90210
T. 424.333.1212
NEWPORT BEACH
567 San Nicholas Dr Newport Beach, CA 92660
T. 424.333.1212
Meet Matthew Onassis, DNP FNP-C
Matthew Onassis earned a Doctorate of Nursing Practice and is aesthetic specialist recognized for results that are refined, restrained, and quietly transformative. A Los Angeles native, he possesses a rare fluency in the discerning standards of the city's most image-conscious clientele—an instinct sharpened by international training in the latest advancements in aesthetic and regenerative medicine.
Matthew's academic path reflects the same rigor he brings to his practice. He earned his Bachelor's degree in History from UCLA before completing his Bachelor of Science in Nursing summa cum laude, followed by his Master of Science in Nursing and Doctor of Nursing Practice at West Coast University. This foundation—equal parts intellectual depth and clinical precision—informs an approach where science and artistry are inseparable.
Founded in Beverly Hills, a private practice, along with Dr. Fati Jah, Onassis Skin, has since expanded to serve clients in Newport Beach—a reflection of the quiet demand that follows exceptional work. Matthew specializes in injectables, advanced laser therapies, and non-surgical facial harmonization, each treatment tailored with an exacting eye for proportion and subtlety. For clients who expect care on their own terms, his concierge services extend to New York and select destinations worldwide. When not in practice, he travels extensively, seeking out the innovations shaping the future of global beauty and wellness—ensuring his clients are always a step ahead of it.
Where beauty meets science.
Matthew pays meticulous attention to the finer nuances when caring for his patients. Whether addressing expression lines, acne, scars, or volume loss, his primary aim is to craft results that exude a natural and exquisite beauty, avoiding the artificial appearance. All of this done with up-to-date literature and most advanced protocols with his personalized technique.
CALL OR TEXT: 424.333.1212
Advanced Laser Solutions for Every Skin Concern.
LASER SKIN SOLUTION
Matthew uses advanced laser technology to treat sun damage, redness, scars, and signs of aging—customized to your skin. Each treatment boosts collagen, improves clarity, and delivers natural, long-lasting results.
Timeless Beauty, Powered by Precision
BOTOX® + WRINKLE RELAXERS
Wrinkle relaxers are ideal for both men and women, whether you're preventing early lines or maintaining a refined look. Beyond smoothing wrinkles, they can also help reduce sweating, facial flushing, and symptoms of rosacea.
Smoother Skin. Lasting Confidence
ACNE SCAR TREATMENTS
Whether it is laser, subcision, microneedling with radiofrequency, chemical peels or a combination of them, we custom-tailor a treatment plan to correct your skin condition to achieve a realstic and improved skin health goal.
Confidence + vitality restored
SEXUAL WELLNESS
Matthew Onassis is an evolving and forever learning provider in male enhancement procedures, bringing unmatched expertise and artistry to every treatment. At Onassis Skin, his approach to male sexual wellness is both discreet and results-driven, using evidence based practice and non-invasive techniques. With a reputation for precision and innovation, Matthew delivers personalized enhancements designed to help you feel confident, powerful, and fully in control.
Facial Harmony Through Artful Enhancement
FULL FACIAL BALANCING
Thorough consultations that incorporate science with beauty. Custom-tailored treatment plans that are planned and discussed with ample time for questions about each treatment and process.
Our Network. Your Confidence
AESTHETIC SURGERY
Some treatments that are recommended may not be a non-surgical route. That is why Matthew has teamed up with some of the most world–renowned facial plastic surgeons, liposuction & body contouring specialists, vaginal rejuvenation and more to provide the fullest capabilities in aesthetics.
Brighter and Fuller
DARK UNDEREYE TREATMENT
Dark under-eyes often result from a combination of volume loss, shadowing, and skin thinning. Through meticulous assessment, Matthew customizes each treatment to address the root causes, strategically placing Radiesse® to restore youthful volume, stimulate collagen production, and brighten the tear trough area. His proprietary approach ensures seamless blending with surrounding tissues, avoiding puffiness or an overfilled look.
What Our Clients Say
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★★★★★
Matthew is amazing, an absolute expert in his field. His professionalism, kindness, and warm personality made this one of the best experiences I’ve had with a provider in LA.
Matthew treats his clients like gold, offering clients a very boutique and customized experience, taking the time to understand their needs and offer thoughtful recommendations. He works with the best lasers in the industry, is highly knowledgeable, and provides a full range of injectable services. I completely trust his expertise and appreciate the exceptional care he provides. -
★★★★★
I had a fantastic experience with Onassis Skin, Matthew's customer service was excellent, and was easy to talk to. He took the time to answer all my questions, which helped me feel more at ease. I appreciated his personalized approach and the attention he gave to my concerns. Most importantly, the results from the laser treatments were impressive. I highly recommend Onassis Skin!
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★★★★★
Not to exaggerate, but Matthew healed more than just my skin. He helped undo years of damage. Not just physical, but emotional too. I used to pick at my skin constantly, stuck in habits I thought I’d never break. With every session, things started to shift. My skin changed, and so did the way I saw myself. He’s gifted, genuine, and honestly, life changing. I came in for a Clear & Brilliant skin treatment but I didn’t know it would also come with such a cool genuine guy. The whole interaction was very therapeutic.
Glow from the inside.
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Basic Multi Vitamin
Regular price $16.99 USDRegular priceUnit price / perSale price $16.99 USD -
Bio C Capsule Vitamin C
Regular price $23.99 USDRegular priceUnit price / perSale price $23.99 USD -
Chelated Iron
Regular price $15.99 USDRegular priceUnit price / perSale price $15.99 USD -
Glutathione 500mg
Regular price $34.99 USDRegular priceUnit price / perSale price $34.99 USD -
Grass-Fed Whey Protein
Regular price $46.99 USDRegular priceUnit price / perSale price $46.99 USD -
Hair, Skin and Nails Multi-Supplement
Regular price $39.99 USDRegular priceUnit price / perSale price $39.99 USD -
Magnesium Glycinate
Regular price $29.99 USDRegular priceUnit price / perSale price $29.99 USD -
Mega-Magnesium
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Methyl-B12 Supplement
Regular price $24.99 USDRegular priceUnit price / perSale price $24.99 USD -
Multi Flora Probiotic
Regular price $28.99 USDRegular priceUnit price / perSale price $28.99 USD -
Natural Herbal Lax
Regular price $18.99 USDRegular priceUnit price / perSale price $18.99 USD -
Vitamin E 400 IU
Regular price $14.99 USDRegular priceUnit price / perSale price $14.99 USD
Onassis Skin Featured Products
An exceptional skincare line developed through the collaborative efforts of a chemist, dermatologists, and the expertise of renowned nurse Matthew Onassis. With a collective passion for skin health and a commitment to providing effective solutions for all skin types, this formulation represents a breakthrough in skincare science.
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ONASSIS DERMAL REPAIR
Vendor:ONASSIS SKINRegular price $168.00 USDRegular priceUnit price / perSale price $168.00 USD -
ONASSIS AGE REVERSE SYSTEM
Vendor:ONASSIS SKINRegular price $149.00 USDRegular priceUnit price / perSale price $149.00 USD -
ONASSIS STEM CELL SERUM
Vendor:ONASSIS SKINRegular price $189.00 USDRegular priceUnit price / perSale price $189.00 USD -
ONASSIS LIP ELIXIR
Vendor:ONASSIS SKINRegular price $54.00 USDRegular priceUnit price / perSale price $54.00 USD















