Sodium Lauryl Sulfate
This inexpensive detergent is commonly used in cosmetic cleansers, hair shampoos, bath and shower gels, bubble baths, etc. - It is probably the most dangerous ingredient used in skin and hair-care products. In the cleaning industry SLS is used in garage floor cleaners, engine degreasers, car-wash soaps, etc. It is very corrosive and readily attacks greasy surfaces. Sodium lauryl sulfate is used throughout the world for clinical testing as a primary skin irritant. Laboratories use it to irritate skin on test animals and humans so that they may then test healing agents to see how effective they are on the irritated skin. A recent study at the University of Georgia Medical College, indicated that SLS penetrated Into the eyes as well as brain, heart, liver, etc., and showed long-term retention in the tissues. The study also indicated that SLS penetrated young children's eyes from developing properly and caused cataracts to develop In adults.