Notes on Ethylene Oxide in Cosmetics

Notes on using Ethylene Oxide Derrived raw materials in Personal Care Products

As a chemist with 30+ years of experience in the cosmetic industry, I wanted to shed light on the potential dangers associated with the use of raw materials that employ ethylene oxide in their manufacturing processes. Ethylene oxide, a commonly used chemical, poses significant concerns in terms of toxicity and impurities, making it unsuitable for use in personal care products.  Some of the concerns that the cosmetic chemist and regulatory group needs to review and consider.

Toxicity Concerns:

Ethylene oxide is classified as a known human carcinogen by reputable organizations such as the International Agency for Research on Cancer (IARC) and the U.S. Environmental Protection Agency (EPA). Prolonged exposure to ethylene oxide has been linked to various adverse health effects, including respiratory issues, skin irritation, and even reproductive toxicity. Given the intimate nature of personal care products, it is crucial to prioritize the safety and well-being of consumers by avoiding the use of such hazardous substances.

Impurities and Contaminants:

One of the major concerns with ethylene oxide is the potential presence of impurities and contaminants in the raw materials derived from its manufacturing process. Ethylene oxide is known to react with other chemicals, leading to the formation of harmful by-products such as 1,4-dioxane. This compound is a suspected carcinogen and can persist in personal care products, posing a long-term risk to consumers. Additionally, ethylene oxide itself can leave behind traces of residual chemicals, which may further contribute to the overall toxicity of the product.

Regulatory Measures:

Recognizing the potential risks associated with ethylene oxide, regulatory bodies have implemented measures to limit its use in personal care products. For instance, the European Union has set strict limits on the concentration of ethylene oxide and its derivatives in cosmetic formulations. Similarly, the U.S. Food and Drug Administration (FDA) has issued guidelines to minimize the presence of 1,4-dioxane in personal care products. These regulations highlight the importance of prioritizing consumer safety and ensuring the use of safer alternatives in formulation processes.

Conclusion:

In conclusion, the use of raw materials that employ ethylene oxide in personal care products should be avoided due to the significant toxicity concerns and the potential presence of impurities and contaminants. As chemists and formulators, it is our responsibility to prioritize the well-being of consumers by opting for safer alternatives. By staying informed, adhering to regulatory guidelines, and choosing ethylene oxide-free ingredients, we can contribute to the development of safer and more sustainable personal care products.

California Safe Harbor limits:

According to the California Safe Cosmetics Program, which operates under the California Safe Cosmetics Act of 2005, the following limits are specified for ethylene oxide and 1,4-dioxane in personal care leave-on and rinse-off cosmetics:

1. Ethylene Oxide:

• Leave-On Cosmetics: The California Safe Harbor limit for ethylene oxide in leave-on cosmetics is 1 ppm (parts per million).

• Rinse-Off Cosmetics: The California Safe Harbor limit for ethylene oxide in rinse-off cosmetics is 50 ppm.

2. 1,4-Dioxane:

• Leave-On Cosmetics: The California Safe Harbor limit for 1,4-dioxane in leave-on cosmetics is 10 ppm.

• Rinse-Off Cosmetics: The California Safe Harbor limit for 1,4-dioxane in rinse-off cosmetics is 25 ppm.

It is important to note that these limits are subject to change, and it is advisable to stay updated with the latest regulations and guidelines provided by the California Safe Cosmetics Program to ensure compliance with the law.

References:

International Agency for Research on Cancer (IARC). (2012). Ethylene Oxide. Retrieved from https://monographs.iarc.who.int/wp-content/uploads/2018/06/mono100F-28.pdf

U.S. Environmental Protection Agency (EPA). (2021). Ethylene Oxide. Retrieved from https://www.epa.gov/hazardous-air-pollutants-ethylene-oxide

U.S. Food and Drug Administration (FDA). (2020). 1,4-Dioxane in Cosmetics: A Manufacturing Byproduct. Retrieved from https://www.fda.gov/cosmetics/cosmetic-ingredients/14-dioxane-cosmetics-manufacturing-byproduct