Harriet Muldoon (@harrietmuldoon), head colorist and technical educator at Blue Tit Salons and Academy in London, created the latest coloring technique, ideal for summer: SunBun. The technique, inspired by the '90s, was developed in response to the growing trend for multiple colors and allows a variety of spontaneous hues to be created with a stunning marbled, tie-dye effect.

Performed on locks that have been pre-lightened, bleached or have a high-lift tint, the look is accomplished by sectioning hair into segments, then creating small top-knots across the head. The more top knots, the more color. The SunBun technique is most dramatic when contrasting tones are placed next to one another, resulting in a bold, 3D effect of bold color.

"While it’s much more effective to see the variation in tones and different shades next to one other, so they can really pop, a softer look can also be created for a more natural effect," Muldoon says.

Blue Tit's go-to method for pre-lightening hair before SunBun-ing is the Davines Flamboyage service, which uses see-through meche strips for a new approach to applying color. 

Scroll through for Harriet Muldoon's SunBun how-to. 

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