Real skin. Real results.
Kat Martyn founded The Face Tonic in 2017 with one rule: tell people the truth about their skin. Nine years on the same floor, the same standards, the same hands.


Nine years treating difficult skin.
Kat trained in advanced skin therapy nine years ago and has spent every week since on the same floor at Sworders Yard. The clinic was built on a simple idea — that a skin therapist's job is to tell the truth about what works, and what doesn't. No upsell. No padded plans. No treatments you don't need.
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We don't have a menu of treatments. We have a list of outcomes.
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We won't sell you what you don't need.
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Same room, same hands, same standards since 2017.
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If we can't help, we'll tell you who can.
The hands you'll be in.
Kat Martyn
Founder · Skin TherapistNine years on the floor. Trained in advanced skin therapy and laser. Author of skin education courses for fellow professionals.
Aesthetics Nurse Prescriber
AestheticsRegistered Nurse and Independent Prescriber delivering all aesthetic treatments — anti-wrinkle, dermal filler, polynucleotides, Profhilo.
Skin Therapist
Skin · LaserKat-trained, with specialisms in laser, microneedling, and skin peels. Continuity of care, not a chair-rental clinic.
Skin Therapist
Facials · BodyKat-trained, focused on facials and body treatments. Same standards every time.
Come and meet us.
Free 15-minute consultations are available with any of our team. No pressure, no upsell.
