Meet The Sisä Skincare Team
Meet the experienced cosmetic nurses behind Sisä Skincare and learn more about our approach to patient care, consultations and skin health on Sydney’s Northern Beaches.
Chelsea Hyett
Chelsea’s journey into medical aesthetics began after the birth of her second child, when changes in her own skin led her to seek real, evidence-based answers. What started as a deeply personal interest in skin health evolved into a passion for helping others feel confident and informed in their skincare journey.
Cosmetic Registered Nurse | RN, MN, BSN
AHPRA Registration: NMW0001891512
Chelsea holds a Bachelor of Science in Nursing and a Master’s degree in Oncology, with over 16 years of clinical experience spanning surgical care, quality management, infection control, and emergency nursing. She is accredited by the Australian College of Nursing and Juv’ae as a Cosmetic Registered Nurse.
As founder of Sisä Skincare, Chelsea combines her extensive clinical background with a personalised approach to patient care, taking the time to understand each individual before creating tailored treatment plans that support long-term skin health.
Rosie Slennett
Rosie is a Dermal Clinician at Sisä Skincare with a deep passion and understanding of the complexities of skin structure and function. Holding a Bachelor of Health Science in Clinical Aesthetics, she has expanded her scope of practice into advanced dermal treatments, with a special interest in light and laser-based modalities, microneedling and radiofrequency needling.
Rosie’s approach to her practice is a genuine commitment to building meaningful relationships with her clients. She takes a holistic view of skin health, considering skincare, lifestyle and possible internal influences to create tailored treatment plans that address each client’s concerns with long-term outcomes in mind.
At Sisä Skincare in Freshwater, Rosie helps clients from across Sydney’s Northern Beaches achieve healthier, more confident skin through personalised, evidence-based care.
Abi Gowenlock
Abi is often the first friendly face you’ll meet at Sisa, and one of the reasons our clients feel so at home here. Warm, approachable and genuinely caring, she has a natural ability to make people feel comfortable, welcomed and looked after from the moment they walk through the door.
Before moving into a career in Pilates, Abi spent many years as a strategic planner and client service lead in the media and advertising industry, giving her a firsthand understanding of the demands of busy work and family life. A long-time client and genuine fan of Chelsea’s, Abi experienced the Sisa philosophy firsthand long before joining the team. Her combination of professionalism, empathy and genuine interest in people makes her an invaluable part of the Sisa experience, and someone our clients quickly come to know and trust.

