• It gives better control of highlight placement.
• It allows for the application of multiple colors in the same procedure.
  
• It gives easier management of the amount of highlighting you get.
  
• It provides more even coverage in the highlights all over the scalp.
  
• Allows the preservation of targeted areas of the hair when wanting to apply a
  general color and use the natural or original color as a "highlight".
  
  There are other benefits as well, depending on the specific effect desired, that foils can provide.
  
  The benefits of getting the service done by a professional are that you know your professional is practiced in performing the service, and you can be reasonably assured of good looking results, particularly if you have access to references or the stylist has a portfolio of previous clients.

What is Foil Highlighting?

Foil highlighting is the process of using foil to separate strands of hair which will be lightened from strands of hair which will remain its natural color. The process is done by applying lightener to the hair that has been woven and separated using an applicator brush. The foil is then folded as to protect the hair and surrounding area during the "processing" time. This is the amount of time required to achieve the desired results. In highlighting hair, a bleach and peroxide[2] mixture can be used to "decolorize" the hair, or hair color dyes can be used to lighten and deposit color to the hair.

This process is also used in applying "lowlights" to the hair. In this process, hair dyes are used to create strands of hair that are darker than the natural color. The foils are often used to separate hair strands for high and low lights during the same process.