The Amsterdam site is one of the first Netherlands branches of Detailing for MCAS, bringing together local volunteers to host fundraisers and spread awareness for Mast Cell Activation Syndrome (MCAS). Through weekly detailing events and community outreach, the Amsterdam team has raised critical funds while engaging new supporters in the mission. As a key part of our international expansion, the site continues to grow its volunteer base and strengthen awareness efforts across the city, proving how grassroots action can build lasting impact.