Here for you

If you have been diagnosed with Mast Cell Activation Syndrome (MCAS), think you may have MCAS, or are supporting someone who does, you are not alone. Mast Cell Action is here to support you.

We are a UK charity supporting people affected by MCAS. Our charity was founded by people with lived experience, and lived experience continues to be at the heart of everything we do. Many of our team, volunteers and supporters either live with MCAS themselves or care for someone who does. We understand how overwhelming, isolating and confusing the journey can sometimes feel.

Whether you are looking for answers, practical information, support, or simply reassurance that someone understands, we are here for you at every stage of your MCAS journey. Connecting with others who share similar experiences can make a real difference.

There is no single experience of living with MCAS. Symptoms, triggers and their impact on everyday life can vary enormously from person to person. That is why we believe it is so important that people affected by MCAS are listened to, believed and supported as individuals.

Explore our information, resources, events and support services, or get in touch if you have a question. We want to help you find the support you need.

Pause for thought

Every person who visits this page is part of a growing community helping to improve life for people affected by MCAS.

If every visitor donated £10, together those gifts could make a significant difference - helping to provide trusted information and support, raise awareness of MCAS, improve understanding among healthcare professionals and support work that helps move research and care forward. As a small charity, every contribution matters.

A single donation, a fundraising event, a few hours of volunteering or sharing your experience can all help us reach more people and create lasting change.

There are many ways to get involved with Mast Cell Action.

You can fundraise for us, volunteer, join our MCAS Voices community panel, or support our work through a one-off donation or regular gift.

However you choose to support Mast Cell Action, you are helping us be there for people affected by MCAS today while working towards a better future.

Thank you for being part of it.

Donate