{"id":20568,"date":"2020-01-03T10:30:28","date_gmt":"2020-01-03T15:30:28","guid":{"rendered":"http:\/\/www.filtersfast.com\/blog\/?p=20568"},"modified":"2026-05-15T15:20:32","modified_gmt":"2026-05-15T19:20:32","slug":"what-you-should-know-about-p65-warnings","status":"publish","type":"post","link":"https:\/\/blog.filtersfast.com\/blog\/what-you-should-know-about-p65-warnings\/","title":{"rendered":"What You Should Know About P65 Warnings"},"content":{"rendered":"

Answering Your Questions About Proposition 65 Warning Labels<\/h2>\n

Proposition 65 (P65) warnings are to inform Californians about products that could expose them to chemicals that can cause cancer or reproductive harm. Although P65 warnings are most common in California, they are influencing nationwide product safety and consumer decisions.<\/p>\n

Have you recently purchased a product that had a Prop 65 warning<\/a>? In this blog, we cover common questions about P65 warnings. We’re also sharing what you should know before buying items with a P65 warning label.<\/p>\n

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P65 Warning FAQs:<\/h2>\n

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What is a P65 warning?<\/h3>\n

Proposition 65 requires businesses to provide warnings to Californians about significant exposure to chemicals that can cause risk of cancer, birth defects, or other reproductive harm. Proposition 65 became law in California in 1986 and requires California to publish a list of chemicals known to cause cancer, birth defects, or reproductive harm annually.<\/p>\n

If you buy a product or food item with a P65 warning label and you don\u2019t live in California, the company likely sells it to Californians and must include the warning label.<\/p>\n

Proposition 65 also applies warnings to more than just physical goods and foods. It prohibits California businesses from knowingly discharging significant amounts of chemicals into sources of drinking water.<\/p>\n

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What you need to know:<\/h2>\n

P65 warnings are required for products sold in California to allow Californians to make informed decisions about their exposure to chemicals that can cause cancer or reproductive toxicity.<\/p>\n<\/div>\n

What does a P65 warning look like?<\/h3>\n

Warnings may look different from product to product or location to location. Manufacturers usually include a warning label that says, ⚠️ WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm.<\/p>\n

Sometimes you may see a specific chemical named, other times you may not. The important thing is to ensure that the warning complies with California’s guidelines and informs you before you purchase or use a product.<\/p>\n

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What does a P65 warning mean?<\/h3>\n

P65 stands for Proposition 65, also known as the Safe Drinking Water and Toxic Enforcement Act of 1986.<\/p>\n

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Who is in charge of and enforces Proposition 65?<\/h3>\n

The P65 website is operated by the California Office of Environmental Health Hazard Assessment (OEHHA). It aims to give the public information about chemicals, products, and locations linked to P65 warnings. The California Attorney General\u2019s Office enforces it and ensures that the state oversees and enforces compliance.<\/p>\n

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If I don’t live in California, do you need to worry about P65 warnings?<\/h3>\n

Although Proposition 65 is a California law, it has led to safer products nationwide. These warnings help you make safer, more informed decisions about the products you buy.<\/p>\n

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Why do products or foods have P65 Warnings?<\/h3>\n

California is required to update and publish a list of these chemicals each year. At this moment, there are approximately 900 chemicals on the list<\/a>. For a business to sell products to Californians, it must include a warning of some kind.<\/p>\n

For consumer products, warning stickers should be displayed directly on the packaging or product. If you buy online, you may find the warnings somewhere in the product description.<\/p>\n

Restaurants may have the warning on menus or right at entrances.<\/p>\n

Rental Facilities may have warnings in common areas or within lease agreements.<\/p>\n

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I bought something with a P65 warning. Should I be worried?<\/h3>\n

It can be alarming when you encounter a P65 warning because there are no clear details about the chemicals involved. Many household products, including gardening supplies like tomato towers, furniture, makeup, or even toys, can have the label. You can find the warning label on almost anything nowadays. Food and beverage items, even certain fish and processed foods, may carry warning labels.<\/p>\n

Unfortunately, identifying the particular chemical used in the product can be tricky, as manufacturers are not required to list the exact substance on the label. A Prop 65 warning is intended to alert you to the possible presence of one or more chemicals from the list that is maintained by California.<\/p>\n

As a consumer, if you buy a product or food with a P65 warning label, you acknowledge that you understand the product may expose you to a chemical known to cause cancer, birth defects, or reproductive harm.<\/p>\n

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Why might a product include a warning about exposure to styrene?<\/h3>\n

Styrene is a chemical that is on California\u2019s Proposition 65 list due to its potential to cause cancer, birth defects, or other reproductive harm. Due to this, products that contain it are legally bound by the list to notify you of the exposure to styrene through direct contact, inhalation during use, or possible entry of food or drink.<\/p>\n

Disposable food containers and certain building materials are examples of styrene products. Plastics and rubber containing styrene are commonly used in manufacturing these items, but seeing the warning doesn\u2019t necessarily mean they will cause harm. The goal is simply to help you make more educated decisions about what you use or consume.<\/p>\n

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If something I bought has a P65 warning, is it safe to use\/eat?<\/h3>\n

If something you buy has a P65 label, it is up to you whether to heed the warning. These warnings do not necessarily mean the product is unsafe; you may be exposed to unsafe chemicals. Whether or not you choose to buy it is ultimately up to you.<\/p>\n

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What resources are available from product manufacturers regarding chemical safety (e.g., Safety Data Sheets, certifications)?<\/h3>\n

Some product manufacturers usually go beyond posting a P65 warning label when they are concerned about informing consumers about chemical safety. Many provide detailed Safety Data Sheets (SDS) that outline the materials in their products, including all known health risks and safe handling instructions. You\u2019ll also often find certificates and reports from third parties that describe a product\u2019s chemical composition and verify that it meets safety standards.<\/p>\n

If you\u2019re unsure about a specific item, checking the manufacturer\u2019s website can provide the documents you need and ease your worries.<\/p>\n

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Where can consumers find more information about the chemical composition of products?<\/h3>\n

If you’re considering buying a product that has a P65 warning, we recommend visiting the P65 Warnings website for the most up-to-date information.<\/p>\n

P65 Warnings Official Website<\/a><\/p>\n

For additional information on the chemical composition of specific products, check the websites of the component manufacturers. They often provide additional resources and safety details about the materials used. It may take more research, but you can be sure you have the most accurate information available.<\/p>\n

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Why does my refrigerator water filter say Cancer or Reproductive Harm?<\/h3>\n

Businesses in California, and those who sell to Californians, must disclose that a product may expose you to chemicals. These chemicals may cause cancer or reproductive harm. The substance could be in the filter casing or the filtration media itself; however, businesses are not required to share specifics. These warnings put the responsibility on the consumer to make an informed decision about their purchase.<\/p>\n

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The P65 Warnings Process<\/h2>\n

For the most accurate and reliable P65 compliance, thorough testing is essential. The Safe Drinking Water and Toxic Enforcement Act of 1986 requires that clear warnings be provided for all products that may expose consumers to chemicals known to cause cancer, birth defects, or other reproductive harm.<\/p>\n

Prop 65 covers over 800 substances and counting, including common culprits like lead, mercury, and formaldehyde. These chemicals are in everyday consumer products, including toys, electronics, furniture, cosmetics, and certain foods. The list of substances is updated regularly as new research emerges.<\/p>\n

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Is it Safe? Proposition 65 Edition<\/h2>\n

Common product categories that have Prop 65 warnings include:<\/p>\n