At Refine Aesthetics we offer advanced, innovative aesthetics, semi-permanent cosmetics and medical-grade skincare treatments, which produce beautiful, naturally enhanced results. Samantha Casey BSc (Hons) - Advanced Aesthetics Practitioner, Skincare Specialist and Semi-permanent Cosmetics Educator. Our Advanced Aesthetics Practitioner Samantha is a BSc (Hons) Chemist with many years of experience in advanced aesthetics, semi-permanent cosmetics and medical-grade skincare.