They include benzene derivatives, aldehydes, and many other known toxics and sensitizers - capable of causing cancer, birth defects, central nervous system disorders and allergic reactions. Neurotoxic properties of chemicals found in fragrances have caused testicular atrophy in lab animals as well as myelin disease. The myelin sheath protects the nerves and does not regenerate. Multiple Sclerosis, Parkinson's, Lupus, and Alzheimer's are all neurological disorders. Dyslexia is a neurological dysfunction.
Symptoms are often identical to chemical hypersensitivity.
These chemicals are listed in the EPA's Code 40 of Federal Regulations, Ch 1, Section 261.33. In a National Institute of Occupational Safety and Health study conducted by Syracuse Research Corporation, Report No. Liver damage is also cited. But anything can be affected, even diet and a personal intolerance for different foods. There are two major ways in which cosmetics and their chemical constituents can affect the body.