Found this information:
Here are the ingredients in S-Curl:
Water , Glycerine , Cetearyl Alcohol , Propylene Glycol , Acetamide MEA , Ceteth-20 , Olealkonium Chloride , Stearalkonium Chloride , Panthenol , Simethicone , Imidazolidinyl Urea , Methylparaben , Propylparaben , Fragrance
Glycerine: Its a humectant so it draws moisture into the hair. If you live in a dry climate such as Arizona it may be bad because it has no moisture from the climate to draw from. Glycerine has been always been questionable as to if it is a god ingredient for hair.
Cetearyl Alcohol: is included in the fatty alcohol group of Lauryl alcohol, Cetyl alcohol, Myristyl alcohol, Stearyl alcohol, Cetearyl alcohol and Behenyl alcohol.These larger alcohols are typically derived from natural sources, and have 12 or more carbons per molecule (typically 12, 14, 16, 18, and 20). This higher amount of carbon content makes these molecules oilier (also referred to as ‘fatty’). For this reason, they are often used as an emollient in skin and haircare products. They give a smooth, soft feeling to the hair shaft by helping the cuticle to lie flat on the surface of the hair. However, if used in excess, fatty alcohols can combine with the natural sebum found on the scalp and form a sticky substance that makes the hair look greasy.
Propylene Glycol: A cosmetic form of mineral oil found in automatic brake and hydraulic fluid and industrial antifreeze. In the skin and hair, propylene glycol works as a humescent, which causes retention of moisture content of skin or cosmetic products by preventing the escape of moisture or water.
Acetamide MEA: A water-soluble conditioning agent that is compatible with anionic and nonanionic systems as opposed to quaternary surfactants compatible only with cationics. This agent's primary purpose is to add shine.