MOAH in Petroleum Jelly: Why Your Lip Balm Might Need a Closer Look

Discover the science behind MOAH (Mineral Oil Aromatic Hydrocarbons) in petroleum-based lip balms, their potential health risks upon ingestion, and effective, petroleum-free alternatives.

Understanding Petroleum Jelly and MOAH

Petroleum jelly, also known as petrolatum or mineral jelly, is a semi-solid mixture of hydrocarbons that is a byproduct of petroleum refining. It's widely used in personal care for its occlusive properties, creating a barrier on the skin to prevent moisture loss. However, during the refining process, if not sufficiently purified, petroleum jelly can retain contaminants known as Mineral Oil Aromatic Hydrocarbons (MOAH) and Mineral Oil Saturated Hydrocarbons (MOSH).

While MOSH are generally considered less problematic, MOAH are of greater concern. They are a complex mixture of aromatic hydrocarbons, some of which are potentially genotoxic (damaging to DNA) and carcinogenic. The level of MOAH in petroleum-based products varies significantly based on the degree of purification.

The MOAH Controversy: Potential Health Risks

The primary health concern surrounding MOAH in products like lip balms stems from the high likelihood of ingestion. Unlike skin creams, lip products are frequently licked off or absorbed, leading to direct oral intake. Once ingested, MOAH can be absorbed into the body and have been found to accumulate in various human organs, including the liver, spleen, and lymph nodes. While research is ongoing, some MOAH compounds are classified as potential carcinogens and endocrine disruptors, meaning they can interfere with hormone systems.

Safer Alternatives for Hydrated Lips and Skin

To minimize potential MOAH exposure, especially from lip products, consider switching to petroleum-free alternatives. Many excellent natural ingredients provide similar moisturizing and protective benefits without the refining concerns. Look for products that utilize plant-based oils, butters, and waxes such as shea butter, cocoa butter, coconut oil, beeswax, carnauba wax, candelilla wax, or lanolin. When choosing petroleum jelly, ensure it is labeled “USP grade” or “pharmaceutical grade,” which indicates a higher level of purification designed to remove contaminants like MOAH. Always check ingredient lists and consider brands known for their transparency and commitment to clean formulations.

Better Alternatives