California Residents

Proposition 65

WARNING: Consuming this product can expose you to lead, which is known to the State of California to cause birth defects or other reproductive harm. For more information about Proposition 65, go to

DōMatcha® and Proposition 65

Proposition 65 is a California law passed in 1986 by direct vote in order to protect drinking water sources from toxic substances, as well as reduce or eliminate exposure to harmful chemicals in consumer products. Proposition 65 warns against any product that contains measurable quantities of any one of the over 800 chemicals named in the law, many of which are naturally occurring.

This warning also applies to public buildings, entertainment sites, hotels, gas stations, transport depots, and many other kinds of products throughout the state.

If the State of California recognizes a chemical to contain a carcinogen or potentially cause any reproductive harm, then they must by law be subject to the Proposition 65 warning. Lead, which naturally occurs in earth, sea water, and groundwater, is often named with a Proposition 65 warning if there is a larger presence than 0.5 micrograms per consumption day in a substance. Some plants may contain very small levels of lead, which often occur naturally in the earth, and in groundwater, which are well below many regulatory bodies’ stated maximum intake levels. This amount is far lower than the amount thought to cause any reproductive harm in humans.

Although the lead content in DōMatcha® products is very low, testing well below the minimum for any harmful substance, we cannot claim that it is there naturally, as it is impossible to determine given lead’s presence in the natural cycles of the world. However, our matcha products do not contain any additional additives. We test our product in Japan for heavy metals and radiation, and is sent to a lab in Illinois for additional radiation testing after arrival in North America. DōMatcha® is committed to providing pristine and high-grade products, which is why we invest in testing to ensure that any dangerous levels of contaminants including lead or radiation would be detected far before coming into contact with consumers.

If you have any further questions or want to learn more, please visit the Proposition 65 Website or feel free to contact us.