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Meet the founder

DONNA BARLEYCORN

Registered Nurse Practitioner Prescriber (NMP/RN) Certified Functional Medicine Clinician (FDN-P) MSc BSc hons Dip HE PGCHE FHEA 

At the Barleycorn Clinic, we provide personalised consultations and treatments either virtually through tele-health or in our discrete private clinic located in West Sussex. Our multidisciplinary team includes a nurse practitioner, GP advisor specialising in women's health, fitness expert, massage therapist, trauma specialist and meditation/breath work teacher. Together, we provide a truly holistic approach to health and wellness. 

More about us
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A nurse practitioner, researcher, and functional medicine clinician with 26 years experience in healthcare

Donna, a highly experienced practitioner, graduated in 1998 and has over 20 years of experience in various medical settings including emergency departments, urgent care, trauma units and prehospital services both in the NHS and abroad. As a nurse practitioner and prescriber, she has worked extensively in acute care settings, and her roles have included clinical educator, senior lecturer, and pathway lead for MSc Advanced Practice and Prescribing programs.

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Her clinical contributions include teaching clinical skills, advanced life/trauma support, physical assessments, consultations, prescribing practices, medico-legal topics, and research. Donna is also a qualified medical aesthetics practitioner, with expertise in advanced neuromodulators, dermal fillers, and management of complications.

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​Throughout her career, she has published numerous clinical and academic papers in the fields of emergency care and aesthetics, and has presented at national and international conferences. She is also an active contributor to editorial advisory boards for international scientific journals, focusing on research in best practices. She also provides 1:1 clinical academic support to prescribing students. 

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Donna's Background

Donna’s extensive background as both a clinical practitioner and educator has paved the way for her expertise in functional medicine and hormone health. Having navigated her own personal health journey, she understands the complexities involved and has spent the past several years deeply immersed in functional medicine research. This, combined with her conventional medical role, has driven her to build a health practice rooted in addressing the root causes of disease and supporting women's health.

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​Her commitment to integrating science, biochemistry, and the latest research in health enables her to offer a comprehensive approach to client care. In addition to her passion for health, Donna brings years of experience in medical aesthetics, recognising its value for clients seeking to enhance their appearance. 

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​With her thorough knowledge and expertise, she ensures each client receives a tailored consultation, treatment plan, and follow-up care, all delivered with empathy and warmth, fostering a strong, trusting client-practitioner relationship.

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Qualifications and Professional Registrations

Registered with NMC (Adult Nurse, Specialist Practitioner, Prescriber, Teacher)

MSc in Clinical Education

BSc hons Nurse Practitioner/Prescriber Specialist Practice

Diploma in Higher Education (DipHE) in Adult Nursing

Post Graduate Certificate in Higher Education Teaching 

Fellow of Higher Education Academy (FHEA)

Certified Functional Diagnostic Nutrition Practitioner (FDN-P)

Advanced training in Functional Medicine Courses and Lab Profile Analysis (i/c Hormones, Gut)

Institute Functional Medicine (IFM) Modules

DUTCH Advanced Hormone Master Training and Hormone Replacement

Association of FDN Professionals (AFDNP)

British Society of Lifestyle Medicine Course (BSLM)

British Menopause Courses (BMS) and HRT Prescribing

College of Medicine and Integrated Health 

Advanced training in Dermal Fillers and Neuromodulators Courses

Dermal Fillers & Neuromodulators Complications trained 

Registered Practitioner of Aesthetic Complications Expert (ACE) Group 

Our Services

Botox Injections

Medical Aesthetic
Treatments

Anti-Wrinkle & Anti-Sweat Treatments

Services
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Health 
Consultations 

Personalised Health Consultation

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Lab Testing & Health Programs

Science backed genetic & functional tests

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