Formaldehyde is highly toxic to all animals, regardless of method of intake. Ingestion of 30 ML (1 oz.) of a solution containing 37% formaldehyde has been reported to cause death in adult humans. Occupational exposure to formaldehyde by inhalation is mainly from three types of sources: thermal or chemical decomposition of formaldehyde-based resins, formaldehyde emission from aqueous solutions and the production of formaldehyde resulting from the combustion of a variety of organic compounds. Short-term exposure to formaldehyde causes breathing difficulties, nosebleeds, and persistent headaches and nausea.
People can be exposed to formaldehyde as a gas, vapor or as a liquid. But the main way people are exposed to formaldehyde is though breathing it in. Formaldehyde can be found in pressed wood products, foam insulation, wallpaper and paint. Also in synthetic fabrics, some personal care products and some cosmetics. Exposure to formaldehyde has been shown to cause cancer in laboratory test animals. Exposure to relatively high amounts of formaldehyde in medical and occupational settings has been linked to some types of cancer in humans, but the effect of exposure to small amounts is less clear. In mice, applying a 10% solution of formaldehyde to the skin was linked to quicker development of cancers caused by another chemical. In one study, inhaling formaldehyde at levels at a concentration of 1.9 parts per million (ppm) for 40 minutes did not increase blood levels of formaldehyde.
Studies of people exposed to formaldehyde long-term exposure in the workplace have also found a possible link to . Several studies have found that embalmers and medical professionals that use formaldehyde have an increased risk of , particularly myeloid leukemia. Some studies of industrial workers exposed to formaldehyde have also found increased risks of leukemia, but not all studies have shown an increased risk. Based on the available evidence, some of these expert agencies have evaluated the cancer-causing potential of formaldehyde.
The National Toxicology Program (NTP) is formed from parts of several different US government agencies, including the National Institutes of Health (NIH), the Centers for Disease Control and Prevention (CDC), and the Food and Drug Administration (FDA). The NTP lists formaldehyde as "known to be a human carcinogen. "The International Agency for Research on Cancer (IARC) is part of the World Health Organization (WHO). Its major goal is to identify causes of cancer. IARC has concluded that formaldehyde is "carcinogenic to humans" based on higher risks of nasopharyngeal cancer and leukemia. The Environmental Protection Agency (EPA) maintains the Integrated Risk Information System (IRIS), an electronic database that contains information on human health effects from exposure to various substances in the environment. The EPA has classified formaldehyde as a "probable human carcinogen." National Cancer Institute researchers have concluded that, based on data from studies in people and from lab research, exposure to formaldehyde may cause leukemia, particularly myeloid leukemia, in humans.
Authors Note: So most the research says formaldehyde at low levels like 1ppm are do not cause cancer. Just to let you know there is no one to regulate cosmetics. FDA only covers food and drugs. So as long as your cosmetics and personal care products companies don't make medical claims the FDA does not regulate them. Human personal care products and cosmetics do not have to release ingredient list to the public. And if they want they can only show partial ingredient list. So they can say there product has 10 ingredients while it has 20. Also there is no limit on how much of a certain ingredient they can use. So they could put 5% formaldehyde and 10% parabens if they wanted to. The show dog industry is also unregulated. The Human cosmetics industry has CIR and PCPC. These are self -regulated organizations. Here at Pure Paws our main concern is what companies are mix 2% formaldehyde 1% paraben and 1% DMDM hydantion, 1% mathylparaben and propyparaben. Well now you just have a toxic cocktail.