Funding Research.
Driving Awareness.
Empowering the
MCAS Community.

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Donations are tax-deductible and go directly toward improving access to treatment, resources, and support for children with MCAS in underserved communities.

Top Stories

Schaumburg Mayor Tom Dailly proclaims MCAS Awareness Day

Mayor Tom Dailly proclaims MCAS Awareness Day in Schaumburg

Proclamation Aug 25, 2026
Illinois Governor JB Pritzker proclaims Mast Cell Disease Awareness Day

Governor JB Pritzker proclaims Mast Cell Disease Awareness Day

Proclamation Aug 17, 2026
State Senator Laura Murphy presents a State Recognition Certificate to Detailing for MCAS

Senator Laura Murphy honors Detailing for MCAS with a State Recognition Certificate

Recognition May 20, 2026

A Youth-Led Global Movement in Rare Disease Advocacy

MCAS Community
What is MCAS? Mast Cell Activation Syndrome causes mast cells to release chemicals that trigger allergic and inflammatory reactions across multiple organ systems.
Symptoms MCAS can cause hives, flushing, abdominal pain, brain fog, fatigue, and anaphylaxis — often triggered by food, heat, or stress.
Diagnosis MCAS is frequently missed or misdiagnosed for years. Awareness and advocacy are critical to getting patients the care they need.
Triggers Common triggers include certain foods, medications, temperature changes, exercise, stress, and infections — varying widely between patients.
Treatment Treatment focuses on antihistamines, mast cell stabilizers, and trigger avoidance. There is currently no cure for MCAS.
Prevalence MCAS is estimated to affect up to 17% of the general population, yet remains widely underrecognized by medical professionals.
Our Mission Detailing for MCAS raises funds for research and empowers the MCAS community through education, advocacy, and support.

The Reality of
Living with MCAS.

Greater awareness means more research funding, earlier diagnoses, and stronger support systems for families. When more people understand and get involved, quality of life for those with MCAS can improve dramatically.

MCAS Reality
Cleveland Clinic Global Genes Global Howard Immune Deficiency Foundation Lurie Mast Cell Action Mast Cell Disease Society Mayo Clinic NCN St. Cleveland Clinic Global Genes Global Howard Immune Deficiency Foundation Lurie Mast Cell Action Mast Cell Disease Society Mayo Clinic NCN St.

Our Numbers

15,000+ Volunteers in 40+ Countries
20,000+ Cars Detailed
25,000+ Cards Made For Patients
$150,000+ For MCAS Research

The World's Largest Youth-Led
MCAS Nonprofit

Our mission is to support individuals and families affected by Mast Cell Activation Syndrome by raising awareness, funding research, and providing meaningful patient-focused resources. Through community fundraisers and youth-led car detailing events, we raise money for improved treatments and greater scientific understanding of MCAS. We also send inspirational cards and supportive messages to patients in hospitals around the world, helping reduce isolation and offering comfort to those navigating this often misunderstood condition.

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