Dr Ravi Ratnavel, Consultant Dermatologist And Skin Specialist
ABOUT US
Dr Ravi Ratnavel
Consultant Dermatologist And Skin Specialist
Dr Ravi Ratnavel is a renowned consultant dermatologist at Define Clinic, specialising in skin rejuvenation and dermatological treatments. With over two decades of experience, Dr Ratnavel brings a wealth of knowledge and expertise to his patients, ensuring they receive the highest standard of care.
MEET THE TEAM
Where It Started For Dr Ravi Ratnavel
For Dr Ravi Ratnavel, the journey into dermatology began at the prestigious Oxford University, where he earned his Doctorate of Medicine in 1996. His academic excellence continued as he mastered the science of perfect skin at London’s world-renowned St John’s Institute for Dermatology. Shortly after, he received dermatology specialist status from the General Medical Council and has been a Fellow of the Royal College of Physicians since 2001.
His early career was marked by his dedication to advancing dermatological care. He gained extensive practical experience at university hospitals associated with London and Cambridge universities, solidifying his expertise in skin care. His commitment to research and clinical excellence led him to hold honorary consultant positions at Buckinghamshire Hospitals NHS Trust and Oxford Radcliffe NHS Trust.
His Time At Define Clinic
At Define Clinic, Dr Ravi Ratnavel utilises his extensive background in dermatology to deliver outstanding skin care treatments. His speciality lies in skin rejuvenation and the treatment of dermatological conditions, where he applies his knowledge to help patients achieve healthy, glowing skin. Dr Ratnavel is adept at treating problems and designing fully personalised treatment plans that cater to each patient’s unique needs.
His expertise covers a wide range of dermatological treatments. He is highly skilled in managing skin cancers, hair, skin, and nail disorders, acne, difficult rashes, suspicious moles, and psoriasis. His special interest in skin cancer has been a significant focus of his career, underpinning his research studies for a doctoral thesis and guiding his clinical practice. As the NHS clinical lead for skin cancer treatment in the Buckinghamshire and Oxford regions, Dr Ratnavel established specialist multi-disciplinary skin cancer services, further showcasing his dedication to patient care.
In addition to his work at Define Clinic, Dr Ravi Ratnavel practises at Harley Street and Spire Thames Hospital. His extensive experience and first-class training have earned him a reputation for successfully treating challenging conditions where other clinicians have failed. Patients benefit from his comprehensive understanding of dermatology, which he combines with state-of-the-art facilities at Define Clinic to achieve exceptional results.
More Information
Dr Ratnavel’s expertise is widely recognised in the field of dermatology. His primary medical education at Oxford University, followed by speciality training at St John’s Institute for Dermatology, provided a solid foundation for his distinguished career.
Over the years, he has developed an exceptional track record in treating various dermatological conditions, ensuring that his patients receive the best possible care.
His contributions to the field extend beyond his clinical practice. He is actively involved in research and education, sharing his insights and knowledge with the broader medical community. Thanks to Dr Ravi Ratnavel and his patient-centred approach, he ensures that each treatment plan is tailored to meet the specific needs of his patients. Whether addressing common skin concerns or complex dermatological conditions, his commitment to excellence is evident in every aspect of his practice.
REVIEWS
WHAT PEOPLE SAY ABOUT DR RAVI RATNAVEL
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Five stars! The hygiene at Define Clinic London is immaculate, the calming ambiance made me feel at ease from the moment I walked in. The staff were professional and knowledgeable, guiding me through a quick microneedling treatment that delivered visible results. I loved the convenience of being able to book an appointment online and the easy access from public transport. If happiness had a location on Google Maps, it would be here. I will definitely be back for more skin boosters and recommend this clinic to anyone looking for top‑notch skincare.
Claire Gerring
2nd April 2026
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From the moment I arrived at Define Clinic Beaconsfield the experience was seamless. The staff were friendly and knowledgeable, the clinic was spotless, modern and welcoming. I felt comfortable asking about microneedling near me and got clear advice. I left feeling confident and will definitely return.
Ollie O’Hanlon
2nd April 2026
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Karen McGuire
1st April 2026
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I recently visited Define Clinic in Beaconsfield after seeing the incredible results they shared of Ulrika on Instagram, and I can honestly say the experience with Dr Benji Dhillon, exceeded all expectations. From the moment I walked in, everything felt professional, welcoming, and thoughtfully designed to put you at ease. The team were knowledgeable, attentive, and took the time to really understand what I was hoping to achieve. They explained every step clearly, which made me feel completely confident and comfortable throughout the process. And the results? Absolutely amazing. The outcome is natural, refined, and exactly what I had hoped for (if not better). It’s rare to find a clinic that combines such high standards of care with genuinely outstanding results, but Define Clinic truly delivers on both. A well-deserved 5-star experience, and I wouldn’t hesitate to recommend them to anyone considering treatment.
Laura Goodfellow
1st April 2026
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I love the calming ambience at Define Clinic London. The staff are friendly and professional, the clinic is spotless and the atmosphere is soothing. The level of professionalism impressed me, and the attention to cleanliness gave me confidence. I felt well taken care of by every member of the team. I’m excited to return for my next treatment . Highly recommend.
clare barclay
1st April 2026
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I was really impressed by how clean the space was at Define Clinic London. The team were friendly, knowledgeable and made me feel relaxed and welcomed from the moment I walked in. They answered all my questions about microneedling for me in a clear and helpful way.
Lee Richards
1st April 2026
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Dr Arreni was incredibly warm, welcoming, and easy to talk to. What really stood out was how thoughtfully she talked me through my options. She took the time to understand exactly what I was hoping to achieve and offered honest, realistic guidance — including clear timelines for recovery — without ever making me feel rushed or pressured. There was absolutely no sense of upselling, just genuine care and professionalism.
For something like an injectables appointment, it was surprisingly enjoyable. I felt listened to, understood, and completely confident in her approach.
The journey to the clinic was 100% worth it, and I can confidently say I’ve found my go-to practitioner. I’ll definitely be returning as a long-term client and wouldn’t hesitate to recommend her to anyone considering treatment.
Michelle Mikulsky
14th March 2026
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Friendly, thorough, transparent and offering excellent treatment – you know you’re in good hands here while the place feels not at all intimidating
Ingeborg van Lotringen
12th March 2026
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Dr Arreni was amazing! This was my first time getting any sort of work done and I couldn’t have been more happy with my results, Dr Arreni made sure everything was natural and just the way I wanted. I was made to feel comfortable throughout the entire process, which really eased any nerves I had. She was so nice and easy to talk to and I will 100% recommend her!
Jasleen Dhillon
9th March 2026
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I heard of Define Clinic through my workplace after they came and introduced their new clinic opening in Fitzrovia. I’ve always been interested in aesthetics and injectables but I find the market so oversaturated and it’s almost impossible to find a practitioner that you can trust and for the right price too.
I had my initial consultation with Dr Arreni for hyperpigmentation and under eye hollowness and she had a thorough chat with me about my skin goals and what she would suggest. We did a skin scan and she made a treatment plan for me which was emailed with pricing. The clinic also offers 0% financing which was great. I never felt like I was being pushed to buy anything and she was honest about expectations and told me what I would see with what treatment I would get. I decided to start with tear trough filler as that was my biggest concern and my appointment with Dr Arreni was smooth and pain free. She was extremely friendly and kind and made me feel at ease and I am overjoyed with the result. I feel like I can really trust her and her expertise as a skilled doctor and I will most likely keep this as my clinic of choice for all other treatments I would want in the future.
Shenhead
8th March 2026
Book Your Appointment Today
Experience the exceptional dermatological care and expertise of Dr Ravi Ratnavel at Define Clinic. Whether you’re seeking skin rejuvenation, treatment for dermatological conditions, or specialised care for skin cancer, Dr Ratnavel’s personalised approach offers real results. Contact Define Clinic today to ask us any questions you may have before you schedule a consultation and take the first step towards healthier, more radiant skin.
