- Mineral oil is a petroleum-based by-product of the distillation of gasoline from crude oil. A hydrocarbon, it is abundant and very cheap to produce. It is used in consumer-grade and industrial-strength lubricants. Highly processed mineral oils known as food grade mineral oils can be used as substitutes for fats in certain food products. It is used in most mainstream cosmetic products. Mineral oil is often marketed as "Baby Oil," and it is the main ingredient in petroleum jelly.
- Mineral oil bonds with the skin. It forms a film that cannot be absorbed and will prevent dirt and bacteria from being expelled from the body. This can clog pores and promote acne, dermatitis and other skin irritation. Permanent scarring of the skin can be a long-term result. A Johns Hopkins University study named this effect the second leading cause of premature aging of the skin behind over-exposure to the sun.
- Mineral oil has been taken internally as a treatment for constipation and as a weight loss aid. The American Medical Association has found that the presence of mineral oil in the digestive system can cause a vitamin deficiency, because the petroleum-based oil prevents the absorption of essential vitamins and minerals by internal organs. Key among the effected minerals is carotene; which is vital to eye health.
- A study by the Fraunhofer Institute of Toxicology in Germany observed the presence of lesions in the liver and lymph nodes from exposure to high doses of mineral oils. These results were observed in both animal and human subjects. The lesions hindered cell performance and raised some serious concerns about possible lymphatic and liver cancers.
- Given the number of skin problems that can occur from the use of mineral oils, it is wise to avoid cosmetic products and moisturizers that contain them. Certified organic products that contain almond, walnut, olive or unrefined sunflower oils are a great alternative to mineral oil. These oils can be absorbed by the skin and contain essential vitamins and proteins. For internal use, the fiber found in bran and oats are a safer, natural remedy for constipation than mineral oil or harsh laxatives.
