Dermatologist
Location: Oakville
Language: English
Specialization: Cosmetic Dermatology & Laser
Dr. Karen O'Neill is a dual board-certified dermatologist in both Canada and the United States, with over 20 years of experience dedicated to medical and cosmetic dermatology. Her practice takes a comprehensive, 360-degree approach to skin health and wellness, offering advanced treatments that include injectables such as neuromodulators and wrinkle fillers, lasers and other energy devices, RF microneedling, hyperhidrosis treatment, and the cosmetic removal of benign skin lesions like skin tags, age spots, and moles.
Dr. Karen O’Neill – Oakville’s Leading Cosmetic Dermatologist
Dr. O'Neill is renowned for her customized, innovative skincare solutions designed to help her patients look and feel like the best version of themselves. Her mission is to deliver exceptional, personalized cosmetic enhancements while providing superb customer service. Guided by her motto, "Artistic Innovations ~ Natural Results," Dr. O'Neill approaches each treatment with a blend of artistry and precision, ensuring natural and rejuvenated outcomes.
As a trusted expert, Dr. O'Neill creates individualized programs tailored to her patients’ unique needs, lifestyles, and budgets. She combines her deep expertise with a thoughtful and honest approach, helping patients feel empowered and confident in their skin health journey.
Dr. O'Neill's dedication to excellence, artistry, and patient care has established her as a leader in the field of aesthetic dermatology, making her a sought-after partner for lifelong skin wellness and natural, radiant results.
Dr. O’Neill offers a range of treatments, including injectables (neuromodulators & fillers), laser and energy-based treatments, RF microneedling, hyperhidrosis treatment, and cosmetic removal of benign skin lesions.
Yes, all treatments are performed using FDA- and Health Canada-approved products and devices, ensuring the highest safety and efficacy standards.
The longevity of results varies by treatment. Neuromodulators typically last 3–4 months, fillers 6–18 months, and laser treatments can provide long-term improvements with proper skincare.
Most treatments have minimal to no downtime. Some procedures, such as laser treatments or microneedling, may cause mild redness or swelling for a few days.
Dr. O’Neill provides personalized consultations to assess your skin concerns and recommend the best treatment options tailored to your goals and lifestyle.
You can book an appointment by calling the clinic or visiting the website to schedule a consultation online.
Have questions or want to book a consultation? Fill out the form below, and our team will get back to you as soon as possible.
At Rejuvenation Oakville, we don’t just promise results – we deliver them. You’re not here to settle for ordinary; you’re here to transform your skin and embrace a youthful, radiant version of yourself. Our expert team has mastered the art of medical aesthetics, offering precision treatments that restore and enhance your natural beauty.
