Hair spray

Hair spray is a common cosmetic product used to hold a person's hair in a certain style or shape. It is often used in conjunction with other hair styling tools, such as hair dryers and curling irons, to create a desired look. Hair spray is typically sold in aerosol cans, although non-aerosol versions are also available.

History

The use of hair spray dates back to the early 20th century, when it was first introduced as a product to help control and shape hair. The first hair sprays were made from shellac, a natural resin, and were applied with a brush. In the 1940s, aerosol cans were introduced, which made the application of hair spray much easier and more convenient. The popularity of hair spray increased in the 1960s, when hairstyles such as the beehive and the bouffant required a strong hold to maintain their shape.

Composition

Hair spray is typically composed of several key ingredients. These include a polymer that provides the holding power, a solvent that carries the polymer, a propellant that helps to spray the product out of the can, and various additives that can improve the performance and feel of the product. The specific composition of a hair spray can vary depending on the brand and the desired effect.

Usage

Hair spray is typically used after the hair has been styled to help hold the style in place. It is sprayed onto the hair from a distance of about 12 inches to provide an even coating. Hair spray can also be used to add volume to the hair, to control frizz, and to provide a shiny finish.

Health and environmental concerns

There have been some health and environmental concerns associated with the use of hair spray. Some studies have suggested that the use of hair spray can contribute to respiratory disease and other health problems. In addition, the use of aerosol cans has been linked to ozone depletion. As a result, many manufacturers have moved towards more environmentally friendly alternatives, such as non-aerosol sprays and sprays made with natural ingredients.

See also

• Hair gel
• Hair mousse
• Hair wax
• Hair styling product