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SSI: An Introduction

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Silent Spring Institute is a mission-driven scientific research organization dedicated to uncovering the environmental causes of breast cancer

Our independent research is empowering a revolution in environmental health to prevent cancers by reducing people's exposure to harmful chemicals where they live, work, and play.

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Our innovative research is made possible thanks to philanthropic partners, foundations, and dedicated supporters like you.

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  • We believe everyone has a right to clean air, clean water, and safer products and that no one should get sick from toxic chemicals.

  • our science

    We are creating new knowledge about cancer-causing chemicals—how we are exposed and how they affect our health.

  • Our work is strengthening policies to protect consumers from toxics while making prevention a national research priority.

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Join us on October 9, 2025, as we come together to support and celebrate breast cancer prevention research that benefits us all. 

Black woman shopping for personal care products

New study focusing on Black and Latina women found cancer-causing preservatives in lotions, soaps, cosmetics.

truck spraying crop with pesticides

On Rachel Carson's birthday, we pay tribute to a scientist whose foresight changed the course of environmental history. Learn how Silent Spring is continuing her legacy.

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Breast cancer and the environment