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Sonia Thohan

Advanced Skin Aesthetician

Sonia Thohan is an Advanced Skin Aesthetician at Define Clinic in Beaconsfield, bringing more than 10 years of experience in the skincare industry. She specializes in advanced facial therapies, personalized skincare programs, and non-surgical body treatments designed to support healthy, balanced skin.

Sonia’s approach combines evidence-based skincare principles with a holistic perspective, creating treatment strategies that reflect each client’s skin type, concerns, and goals. At Define Clinic, she provides a range of advanced aesthetic treatments, including laser therapies, microneedling, HydraFacial, chemical peels, and non-surgical body contouring, delivering professional care focused on long-term skin health and confidence.

Practice

Clinic Information

At Define Clinic in London and Beaconsfield, care is centered around you. Every consultation begins with an in-depth full-face assessment and a personalized treatment plan. 

Define your confidence at London and Beaconsfield's CQC-registered aesthetic, dermatology, and wellness clinic. Founded by Dr Benji Dhillon, Define Clinic delivers advanced injectables, laser treatments, skin therapies, and body contouring through bespoke, ethical care. The clinic has been featured in Tatler and Vogue and recognized by the Safety in Beauty Diamond Awards.

Services

Treatments Offered

Sonia specializes in advanced skin rejuvenation and body contouring treatments, combining technical precision with a personalized approach tailored to each client’s goals and concerns. 

  • Acne Scars
  • Fine lines
  • Uneven texture
  • Sun damage
  • Uneven skin tone
  • Redness or rosacea

HydraFacial

  • Congested pores
  • Dehydrated skin
  • Enlarged pores
  • Dull Skin
  • Fine lines
  • Uneven texture
  • Localized fat pockets
  • Muscle separation (diastasis recti)
  • Body contour changes after pregnancy
  • Localized fat pockets
  • Body contour changes after pregnancy
  • Post-weight loss sagging

DiamondGlow / Dermal Infusion

  • Congested pores
  • Dehydrated skin
  • Dull Skin

Testimonials

Patients Reviews

Patient reviews reflect real experiences with Sonia Thohan and the Define Clinic team, highlighting their attentive manner, skincare expertise, and ability to deliver personalized results for skin health and facial treatments. 

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

5/5

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

5/5

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 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

5/5

Contact

Contact Sonia Thohan

Book an appointment with Sonia at Define Clinic in Beaconsfield to discuss your goals, explore advanced skin treatment options, and receive personalized care in a refined clinical setting. 

Define Clinic

Address

Wendover House, 24 London End
Beaconsfield HP9 2JH
United Kingdom

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