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[1] [2] Other proponents avoid shampoos because they believe some of the ingredients to be harmful. Sulfates like sodium lauryl sulfate can be irritants; [9] [10] sulfate-free shampoos are also marketed based on this concern. [11] There are also pollution concerns with the fungicides in dandruff shampoo. [12] [13]
Sodium laureth sulfate (SLES), an accepted contraction of sodium lauryl ether sulfate, also called sodium alkylethersulfate, is an anionic detergent and surfactant found in many personal care products (soaps, shampoos, toothpaste, etc.) and for industrial uses. SLES is an inexpensive and very effective foaming agent. [1]
Shampoo is typically used to remove the unwanted build-up of sebum (natural oils) in the hair without stripping out so much as to make hair unmanageable. Shampoo is generally made by combining a surfactant, most often sodium lauryl sulfate or sodium laureth sulfate, with a co-surfactant, most often cocamidopropyl betaine in water.
Conventional shampoos often contain harsh detergents such as sodium lauryl sulfate (SLS) and ammonium lauryl sulfate (ALS). These detergents strip the hair of its natural oils and cause damage to ...
How often these products are used, how much time a person’s hair care routine takes, the temperature of styling tools, hair length, bathroom size and type of ventilation system are all factors ...
This sparked great interest in the development of synthetic detergents that biodegrade into environmentally friendly byproducts. Such interest has led to the development of the linear carbon chain compounds commonly used today, such as sodium lauryl sulfate and sodium laureth sulfate/ sodium lauryl ether sulfate (SLS/SLES). [6]
Along with sodium laureth sulfate, they are one of the oldest and most widely used synthetic detergents and may be found in numerous personal-care products (soaps, shampoos, toothpaste etc.) and household-care products (laundry detergent, dishwashing liquid, spray cleaner etc.). [1]
A common example is sodium lauryl sulfate, with the formula CH 3 (CH 2) 11 OSO 3 Na. Also common in consumer products are the sulfate esters of ethoxylated fatty alcohols such as those derived from lauryl alcohol. An example is sodium laureth sulfate, an ingredient in some cosmetics. [2]
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