{"id":22415,"date":"2025-04-17T10:09:25","date_gmt":"2025-04-17T14:09:25","guid":{"rendered":"https:\/\/www.filtersfast.com\/blog\/?p=22415"},"modified":"2026-06-10T12:48:32","modified_gmt":"2026-06-10T16:48:32","slug":"what-is-a-p65-warning","status":"publish","type":"post","link":"https:\/\/blog.filtersfast.com\/blog\/what-is-a-p65-warning\/","title":{"rendered":"What is a P65 Warning?"},"content":{"rendered":"

Have you recently purchased a product that came with a P65 Warning? Most P65 labels will say, \u201cThis product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm.\u201d<\/p>\n

When you see a P65 label, it should cause concern. In this blog, we’ll cover what a P65 warning is, why you are seeing this label, and more resources to make more informed decisions about the products you purchase.<\/p>\n

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What is a P65?<\/h2>\n

Proposition 65, or Prop 65, became law in California in 1986. This law requires California to publish a list of chemicals known to cause cancer, birth defects, or reproductive harm annually and requires businesses to provide these warnings to Californians.<\/p>\n

If you buy a product or food item with a P65 warning label and don’t live in California, the product is likely sold to Californians and must have a P65 warning label. You may see the label on the packaging, product, or website where the product is sold.<\/p>\n

What Chemicals are on the Prop 65 List?<\/h2>\n

The Proposition 65 list features a diverse array of chemicals. It includes both naturally occurring and synthetic varieties. The substances on the list may be additives or ingredients in various products. Here are a few examples:<\/p>\n