Aesthetic Clinic
Mayfair, London
Our Clinic in Mayfair, London
Welcome to Define Clinic, the premier aesthetic clinic Mayfair clients trust for expert care in aesthetic treatments right in the heart of London.
Welcome to Define Clinic, the premier aesthetic clinic Mayfair clients trust for expert care in aesthetic treatments right in the heart of London. At our clinic, located conveniently at 9, 10 Windmill Street, we offer a wide array of aesthetic and wellness treatments to help you achieve your beauty and wellness goals. Whether you’re seeking advanced skin rejuvenation or body contouring, Define Clinic has you covered.
Under the leadership of Dr. Benji Dhillon, our team of highly skilled practitioners brings years of experience and a commitment to using the latest technologies. From non-surgical anti-ageing treatments to innovative body contouring solutions, our holistic approach ensures that each treatment plan is carefully crafted for every individual who visits us. Define Clinic is setting a new standard of excellence among aesthetic clinic Mayfair locations and throughout London.
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Treatments Our Aesthetic Clinic Mayfair Offers
Our clinic offers a full spectrum of advanced aesthetic treatments for both the face and body. Every treatment is designed with your unique needs in mind, ensuring that each client leaves feeling rejuvenated, refreshed, and more confident.
- Anti-Wrinkle Injections: Smooth out fine lines and wrinkles for a youthful, refreshed look. This treatment, expertly administered by our team, is perfect for those looking to enhance their natural beauty while maintaining a subtle, natural appearance.
- Dermal Fillers: Add volume to key areas like the lips, cheeks, and jawline with our high-quality dermal fillers. Define Clinic ensures each treatment is tailored to achieve balanced, harmonious results that enhance facial features.
- CoolSculpting: Stubborn fat in areas like the abdomen, thighs, and arms can be targeted and reduced through this innovative fat-freezing treatment. CoolSculpting provides visible results without surgery, making it ideal for those looking for body contouring options.
- HIFU (High-Intensity Focused Ultrasound): This non-surgical facelift alternative lifts and tightens the skin, stimulating collagen production for improved elasticity. HIFU is a popular choice at our clinic for clients looking to achieve a natural, youthful lift to their skin.
- miraDry® for Hyperhidrosis: For clients experiencing excessive underarm sweating, miraDry® provides a lasting solution by eliminating sweat glands in the targeted area. This treatment can significantly improve comfort and confidence.
And more!
Ours is among the most comprehensive range of services an aesthetic clinic Mayfair has to offer. Our commitment to aesthetics goes beyond skincare alone to encompass a holistic approach to your beauty and wellness goals.
About Our Aesthetic Clinic Mayfair
Define Clinic stands out among any other aesthetic clinic Mayfair has to offer by combining expertise in both aesthetics and wellness with an unparalleled commitment to client care. Our team believes that beauty and wellness go hand-in-hand, and we take a holistic approach to every service we offer. This means that each client receives a thorough initial consultation, where we assess individual needs, goals, and preferences to develop a personalised treatment plan.
Led by Dr Benji Dhillon, the Define Clinic team is recognised across London for excellence in aesthetic treatments. Dr. Dhillon, an esteemed aesthetic practitioner, is known for his advanced techniques and his focus on natural-looking results. Together, the Define Clinic team has established the clinic as a trusted name for clients in Mayfair and beyond who value safety, quality, and integrity.
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What Our Clients Say
Our clients’ satisfaction is a testament to our commitment to quality care.
Read our reviews to see why Define Clinic is the aesthetic clinic Mayfair clients recommend for personalised, transformative results.
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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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Karen McGuire
1st April 2026
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Amazing initial consultation with Dr Benji Dhilion, he has an amazing manner, knowledge and feel excited about the treatments booked in.
I was also reviewed by Sonia the Skin specialist, who equally was great, she helped guide me with the right treatment plan and skincare.
Would highly recommended booking an appointment.Holly Davies
19th February 2026
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Excellent exilis treatment with Elena. She was knowledgeable and caring and left my skin feeling and looking great!
Amrita Dhillon – Exilis
14th February 2026
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Dr Teuta Berisha is just fantastic! This is the second visit for aesthetic treatments and I would highly recommend her to anyone. She is honest and discusses through all the options. The treatment was painless and the whole experience was great. Thank you!
Rebecca Kingswood
19th October 2025
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Define Clinic truly goes above and beyond! From the initial consultation to the final result, every step was handled with precision and professionalism. I’m beyond thrilled with my experience!” Dr Benji Dhillon took his time to clearly explain each step with honest and transparent guidance. Highly recommended made me feel at ease throughout the entire process. The outcome is fantastic, and I couldn’t be happier!
Vimal Thohan
12th October 2025
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I have been a client of Dr Benji Dhillon for several years now and he recently told me about a new treatment to the clinic called Juliane which he thought might be of interest to me. Well, what can I say, this treatment has given me such amazing results, even after just one treatment! My skin looks younger and healthier, it literally feels like the collegen has been restored.
It’s amazing !!!
I can thoroughly recommend the Juliane treatment.
Thank you Dr Benji Dhillon !Beth BAILEY – JULÄINE
22nd September 2025
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I was looking for some non-invasive treatments to address a couple of skin concerns and maintain my skin in top condition. After doing extensive research to find the best practitioner, I came across Dr. Benji Dhillon, founder of the Define Clinic, who came highly recommended. From the start, I felt completely comfortable and confident in his treatment recommendations. I’m absolutely thrilled with the results—they look incredibly natural. I’m very happy with my experience and will definitely be returning in the future
Define Clinic – Botox Patient
9th September 2025
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The Define team make you feel welcome from the moment you enter the clinic. My Polynucleotide treatment was carried out with care by Dr.Arreni, she was thorough with her explanations and made me feel very relaxed during the procedures. I’m very happy with the outcome and would highly recommend Dr.Arreni if you are looking for natural, long-lasting results.
Leila – Polynucleotides
3rd September 2025
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Nice calm atmosphere, excellent advice and reassurance. Dr Teuta was absolutely amazing and I am very pleased with my treatment. Not to forget the very accommodating reception team who are always a pleasure to deal with.
Vanessa Costello
19th August 2025
Meet The Team
Our skilled team is committed to maintaining the highest standards of care, bringing expertise, compassion, and a dedication to client satisfaction to every treatment.
Serving Mayfair
Situated at the heart of Mayfair, Define Clinic is easily accessible for London clients seeking premium aesthetic treatments. Our location on Windmill Street provides convenient access for clients from both the local area and nearby neighbourhoods. We understand the busy lives of our clients and offer flexible hours to ensure that our services can fit seamlessly into your schedule. As an aesthetic clinic Mayfair recognises, Define Clinic remains dedicated to serving the London community with services tailored to their needs, making us a trusted choice for aesthetic care.
About The Area
Define Clinic’s aesthetic clinic is located within one of London’s most prestigious districts. Known for its luxury boutiques, iconic architecture, and historical sites, Mayfair offers a unique blend of elegance and tradition. Our location puts clients in close proximity to many of London’s finest shops, restaurants, and cultural attractions, creating an experience that extends beyond the clinic itself.
Opening Times
| Monday | 09:00-18:00 |
| Tuesday | 09:00-18:00 |
| Wednesday | 09:00-18:00 |
| Thursday | 10:00-19:00 |
| Friday | 09:00-18:00 |
| Telephone Number | 0203 336 4100 |
FAQs
What sets Define Clinic apart as an aesthetic clinic Mayfair clients choose?
Define Clinic is led by experts in aesthetic care, delivering top-quality, personalised treatments. We are committed to using the latest technology and innovative techniques, ensuring safe, effective results for our clients.
Is there a consultation fee at Define Clinic?
Yes, Define Clinic charges a consultation fee, which allows us to provide a comprehensive assessment and create a personalised treatment plan that addresses your unique goals and needs.
What treatments does Define Clinic offer?
Define Clinic offers a variety of services, including anti-ageing treatments, skin rejuvenation, and body contouring. Each service is tailored to meet the specific needs of our aesthetic clinic Mayfair clients.
Is Define Clinic a safe place for aesthetic treatments?
Absolutely. Define Clinic adheres to stringent safety and hygiene standards, with all practitioners fully trained in their fields. We maintain a safe, sanitised environment and follow best practices in line with health authority guidelines.
How can I book an appointment at Define Clinic?
Booking an appointment is easy. You can contact us directly by phone or use the online form below to schedule a consultation or treatment at our Mayfair clinic.
Things To Do
After your visit to Define Clinic, take some time to enjoy the attractions nearby. Stroll through the beautiful Grosvenor Square, explore the high-end boutiques on Bond Street, or indulge in a fine meal at one of Mayfair’s renowned dining establishments.
Get In Touch
Ready to start your journey with Define Clinic? Fill out our contact form, and a member of our aesthetic clinic Mayfair team will reach out to schedule your consultation or answer any questions you may have.
