Senior Medical Science Liaison in England

We are seeking a highly experienced, senior‑level Medical Science Liaison (MSL) to join our growing Medical Affairs team. This pivotal, field‑based role covers the UK and Ireland, requiring a seasoned professional with strong scientific credibility, independence, and strategic maturity. The Senior MSL will serve as a scientific bridge between the company and key healthcare professionals — including dermatologists, plastic surgeons, aesthetic practitioners (doctors, dentists, pharmacists, nurses) and other relevant allied healthcare professionals — building trusted, peer‑to‑peer relationships grounded in clinical evidence and advanced scientific exchange.

In addition to traditional MSL responsibilities, this role has a clear emphasis on face‑to‑face scientific education and training, as well as a defined remit to support commercial colleagues with scientific expertise and to manage off‑label medical enquiries in a fully compliant and ethical manner.

• Scientific Exchange & Medical Education
  • Develop and maintain peer‑level scientific relationships with Key Opinion Leaders (KOLs), aesthetic physicians, nurses, and allied healthcare professionals across the UK and Ireland.
  • Deliver tailored, evidence‑based presentations, clinical updates, and educational programmes to HCPs in 1:1 and group settings.
  • Represent the company at national and international medical aesthetics congresses, symposia, and advisory boards.
  • Provide strategic input into scientific content, speaker selection, and briefing for educational events and congress activities.
  • Maintain up‑to‑date scientific and competitive knowledge by continuously reviewing relevant literature and market developments.
  • Document and track HCP interactions, scientific topics discussed, and key insights through approved CRM systems or available platforms.
  • Track and report agreed activity metrics (e.g. scientific interactions, topics discussed, response timelines) in approved systems, in line with compliance requirements.
  • Identify, develop, and manage relationships with emerging KOLs and thought leaders in the aesthetics space.
  • Support clinical investigators with investigator‑initiated trials (IIT) in compliance with relevant SOPs and regulations.
• Sales Team Support
  • Partner with the commercial sales team to provide clinical and scientific support that enhances their credibility with HCP customers.
  • Deliver scientific training to the field sales team to deepen product knowledge and understanding of clinical evidence.
  • Attend customer‑facing meetings alongside account managers when scientific expertise is required (within ABPI and applicable Irish code guidelines).
  • Provide product and competitor landscape insights to the sales and marketing teams to inform strategy.
  • Develop and review clinical resources, FAQs, and objection‑handling materials in collaboration with Medical Affairs and Marketing colleagues.
  • Assist in the development of speaker programmes and peer‑to‑peer educational events.
• Off‑Label Medical Enquiries
  • Act as a point of contact for managing unsolicited off‑label medical enquiries from HCPs in a fully compliant and documented manner.
  • Work closely with the Medical Information and Regulatory Affairs colleagues to ensure responses are accurate, timely, and appropriately referenced.
  • Maintain meticulous records of all off‑label enquiries and responses in accordance with relevant SOPs and ABPI/IPHA codes of practice.
  • Proactively identify trends in off‑label enquiries to inform Medical Affairs strategy and evidence generation priorities.
  • Provide guidance to colleagues on the appropriate handling of off‑label questions, ensuring full compliance with UK and Irish legislation.
• Medical Affairs & Cross‑Functional Collaboration
  • Contribute to the development and execution of the UK & Ireland Medical Affairs plan.
  • Collaborate with the wider Medical Affairs team (including Medical Information, PV, Regulatory, Medical Communications and Professional Relations) on product lifecycle activities.
  • Provide field medical insights and intelligence to inform publication strategy, evidence generation, and market access activities.
  • Support the review and approval of promotional materials through the medical, legal, and regulatory review process.
  • Contribute to pharmacovigilance activities by ensuring adverse events are captured and reported appropriately.
  • Systematically capture, document, and communicate structured field insights through approved systems to ensure timely and consistent input into medical and cross‑functional strategy.

• Aesthetics medical affairs colleagues (MSL colleagues within Merz Aesthetics, Scientific Advisors, Medical Information) to work as a team and deliver the Aesthetics medical plan.
• Aesthetics commercial colleagues in marketing and sales to ensure alignment on customer interactions.
• Given therapy area KOLs to act as partners in the delivery of projects to achieve better outcomes for patients.
• Global and Regional Aesthetics colleagues to align on research and global medical projects.

• Advanced life sciences degree (PhD, PharmD, MBChB, MD, or equivalent); candidates with a Master’s and strong MSL experience will be considered.
• Minimum 5+ years’ experience in an MSL or equivalent senior Medical Affairs field role within pharmaceuticals, medical devices, or medical aesthetics.
• Demonstrable experience in a medical aesthetics, dermatology, plastic surgery, or closely related specialty.
• Strong track record of building and maintaining KOL relationships.
• Experience managing off‑label enquiries in a regulated UK/Ireland environment.
• In‑depth knowledge of ABPI Code of Practice and Irish IPHA Code requirements.
• Experience supporting sales teams with scientific and clinical content within compliant frameworks.

• Clinical background in dermatology, aesthetics, or related discipline.
• Prior involvement in advisory boards, clinical studies, or publication activities.
• Working knowledge of the aesthetics competitive landscape in the UK and Ireland.
• Experience in training or coaching sales or medical teams.

• Excellent scientific communication and presentation skills — ability to translate complex clinical data for diverse audiences.
• Strong interpersonal and relationship‑building skills with a collaborative, credible approach.
• High degree of integrity, self‑motivation, and professional accountability.
• Commercially aware with the ability to balance scientific independence with business objectives.
• Outstanding attention to detail, particularly in documentation and compliance.
• Proficient in CRM platforms and Microsoft Office suite.
• Full UK driving licence required; willingness to travel across the UK and to Ireland.

• ABPI Code of Practice for the Pharmaceutical Industry (UK)
• IPHA Code of Practice (Ireland)
• Medicines and Healthcare products Regulatory Agency (MHRA) guidelines
• Health Products Regulatory Authority (HPRA) requirements (Ireland)
• Company SOPs, medical affairs policies, and applicable data protection legislation (UK GDPR / DPIA framework)

The MSL must maintain a clear separation between medical and promotional activities at all times and is expected to uphold the highest standards of medical ethics and professionalism.

• Teamworking – Champions working together to create a culture of mutual respect; ensures real collaboration and true involvement. Uses strengths and the expertise of others to create and celebrate team success.
• Passion for Results – Demonstrates energy and drive in delivering results. Is proactive in approach and efficient and effective. Focuses on the end goal.
• Personal Accountability – Takes responsibility for self and actions. Takes the initiative and is proactive. Is willing to stand up and be counted and do the right thing.
• Open and Transparent – Gives and accepts regular honest constructive feedback and speaks the truth. Approaches working with others with positive intent. Brings disagreement out into the open and seeks to define solutions that everyone can endorse.
• Developing Self and Others – Takes responsibility and demonstrates commitment to own development. Uses all situations as potential learning opportunities. Supports and encourages others to develop their knowledge and behaviours.
• Innovation – Challenges thinking to bring about improvements. Seeks to gain understanding of a topic and generate new ideas and new ways of working. Is flexible and agile and delivers different and better solutions. Embraces change, learns from mistakes and takes smart risks.