Sisu Clinic - Belfast

Allison Yavari, PA-C, DMSc, leads Sisu Clinic’s New York team. A certified physician assistant with a Doctor of Medical Science degree and experience in plastic surgery and cosmetic dermatology, she specialises in cheek and chin augmentation, Sculptra and full-face harmonisation. Sisu’s providers complete intensive, clinically-guided training under medical leadership.

Sisu Clinic offers a comprehensive range of non-surgical aesthetic treatments — anti-wrinkle injectables (Botox/Dysport), dermal fillers for lips, cheeks, jawline and under-eyes, skin boosters (Skinvive), collagen stimulators (Sculptra), fat-dissolving treatments (Kybella), thread lifts and non-surgical rhinoplasty. Treatments emphasise personalised full-face plans, evidence-based protocols and subtle, natural-looking results delivered by medically trained teams.

Based in New York and part of a national clinic network serving locations across the US, Sisu Clinic combines medical oversight, continuous training and transparent pricing to deliver consistent, patient-centred care. The practice focuses on long-term skin health, safety and outcomes that enhance confidence while preserving each patient’s natural features.