What is balayage?
Balayage is a French word meaning to sweep or to paint. It allows for a sun-kissed natural looking hair colour – similar to what nature gives us as children – with softer, less noticeable regrowth lines. The principal idea being less is more when creating soft, natural looks.
How is it applied?
Balayage is applied on the surface and not saturated through the section until the very tips, otherwise you would have a streak of colour that isn’t vey soft at all. It can also be called a freehand technique because no foil or meche are used to create the highlights.
Read more at http://www.marieclaire.co.uk/beauty/hair/so-what-exactly-is-balayage-why-do-we-love-it