Glass hair is a high-shine aesthetic trend that took over social media and has since become a bonafide styling goal. The look is defined by hair that lies perfectly flat against the head with zero frizz, zero flyaways, and a near-reflective surface. It works best on straight or lightly wavy hair but can be achieved on other textures with the right prep and tools. The key to glass hair is sealing the hair cuticle as tightly as possible — a lifted cuticle scatters light and creates dullness, while a flat cuticle bounces light back for that mirror effect. Heat styling, smoothing treatments, and shine-boosting finishing products are all essential to the look.
