Prop 65

Prop 65 Warning Label

You may have seen the following warning label associated with KitHub products, as well as on other electronics or products purchased from other manufacturers:

WARNING: This product contains one or more chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

This warning does not mean that KitHub products will necessarily cause cancer or reproductive harm. Furthermore, a Proposition 65 warning does not mean a product is in violation of any product-safety standards or requirements. The California government has explained, “You could think of Proposition 65 more as a ‘right to know’ law than a pure product safety law.” See

While we believe KitHub products are not harmful when used as indicated in the instructions, KitHub is a California company and we provide the warning as outlined by California Proposition 65.

California Proposition 65

In 1986, California voters approved an initiative to address their growing concerns about exposure to toxic chemicals. That initiative became the Safe Drinking Water and Toxic Enforcement Act of 1986, better known by its original name of Proposition 65. Proposition 65 requires the State to publish a list of chemicals known to cause cancer or birth defects or other reproductive harm. This list, which must be updated at least once a year, has grown to include approximately 800 chemicals since it was first published in 1987.

Proposition 65 requires businesses to notify Californians about significant amounts of chemicals in the products they purchase, in their homes or workplaces, or that are released into the environment. By providing this information, Proposition 65 enables Californians to make informed decisions about protecting themselves from exposure to these chemicals. Proposition 65 also prohibits California businesses from knowingly discharging significant amounts of listed chemicals into sources of drinking water.

The Office of Environmental Health Hazard Assessment (OEHHA) administers the Proposition 65 program. OEHHA, which is part of the California Environmental Protection Agency (Cal/EPA), also evaluates all currently available scientific information on substances considered for placement on the Proposition 65 list.

Informed Decision Making

KitHub is a strong advocate for having agency over your own health and well-being and that starts with being informed. The OEHHA provides a wealth of resources so that you can learn about products that you are exposed to in your daily life and we encourage you to read more here.

Outside of California

If you purchased this product outside of California and the warning label is on your product it is because KitHub ships product nationwide and it is difficult to separate products by destination.