MATTHEW ONASSIS, DNP
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TIMELESS BEAUTY,
POWERED BY SCIENCE

CELEBRITY NURSE TO THE STARS

Matthew Onassis is a Nurse Practitioner and aesthetics expert known for his natural yet high-impact results in cosmetic dermatology. A Los Angeles native, Dr. Onassis brings an insider’s understanding of the city’s beauty culture—paired with a globally informed approach gained through international training in the latest aesthetic and regenerative techniques.

He holds a Bachelor’s degree in History from UCLA and went on to earn his Bachelor of Science in Nursing (Summa Cum Laude), Master of Science in Nursing, and Doctor of Nursing Practice—all from West Coast University. His academic foundation, clinical expertise, and refined aesthetic sensibility allow him to blend science with artistry in every treatment.

At his Beverly Hills-based practice, Onassis Skin, Dr. Onassis specializes in injectables, advanced laser treatments, and non-surgical facial harmonization. His concierge-style services also extend to New York and other destinations for clients seeking elevated, personalized care. Outside of work, he travels often to stay at the cutting edge of innovation in global beauty and wellness.

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.

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Confidence + vitality restored

SEXUAL WELLNESS

Matthew Onassis is a leading provider in male enhancement and penis filler 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 proprietary, non-invasive techniques to improve penile sensitivity, enhance erection strength and frequency, and elevate sexual pleasure and stamina. 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

  • ★★★★★

    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!

  • ★★★★★

    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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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.

Reserve a Consultation

CALL OR TEXT: 424.333.1212

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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