Billie Eilish Swears by this Hair Serum

Billie Eilish has always been known for her bold style, especially when it comes to her hair. From electric green roots to platinum blonde, she’s never shied away from experimenting with color. But maintaining colored hair can be tough, especially when it comes to keeping strands healthy and vibrant. Recently, Billie has revealed her secret weapon for keeping her color-treated hair in perfect condition—Olaplex No. 6 Bond Smoother.

Why Billie Swears By It

In an interview, Billie called Olaplex No. 6 "amazing" for her colored strands, and it’s easy to see why. This leave-in styling treatment is designed to strengthen, hydrate, and smooth hair—all without weighing it down. For someone like Billie, who has gone through several extreme hair transformations, a product like Olaplex No. 6 is essential for maintaining healthy, shiny hair.

The formula works by repairing broken bonds in the hair caused by chemical treatments, heat styling, and environmental stressors. It’s ideal for colored or damaged hair, as it helps rebuild strength from the inside out, leaving strands soft, manageable, and frizz-free.

What Makes Olaplex No. 6 Special?

Olaplex has long been a staple in the hair care routines of stylists and celebrities alike, and No. 6 is no exception. Here’s what sets it apart:

• Bond-Building Technology: Olaplex is famous for its patented bond-building technology, which repairs the broken disulfide bonds in the hair caused by bleaching, coloring, and heat.

• Long-Lasting Effects: A little goes a long way with Olaplex No. 6, and its effects can last through multiple washes, reducing the need for frequent touch-ups.

• Frizz Control: Whether you have straight, wavy, or curly hair, No. 6 works wonders for taming frizz and flyaways, especially in humid conditions. This makes it a go-to for celebs like Billie, who need their hair to look flawless both on stage and off.

• Color Protection: For those with vibrant hair colors, keeping that rich, salon-fresh look is key. Olaplex No. 6 helps lock in color while keeping hair looking shiny and hydrated.