I am on a never-ending quest for better hair. It seems like I’ve tried every shampoo, conditioner, leave-in, serum, and oil on the market to try to make my hair look shampoo-commercial-good. It seems I have a new product to try in my quest for good hair: Kérastase Elixir Ultime Original Oil

This hair oil is a longtime celeb favorite. The most recent star to use it is Hayden Panettiere, who just debuted pink and green “watermelon” hair. She shared that Kérastase Elixir Ultime Original Oil helps keep her hair healthy through every fun color she tries. 

Panettiere is the most recent celebrity to share her love of Kérastase’s oil, but it has a slew of other celebrity fans. Jennifer Aniston, Meghan Markle, Emily Ratajkowski, Alix Earle and Olivia Rodrigo all love this hair oil too, according to the brand. In fact, one bottle sells every three minutes. 

There’s a reason Kérastase Elixir Ultime Original Oil has so many fans. It’s made with a mixture of camellia oil, argan oil, and marula oil, which work in tandem with one another to nourish and strengthen hair. The oil helps protect hair against heat damage and humidity, boosts shine, and prevents breakage and frizz. Consider me convinced—I will be adding it to my personal hair routine ASAP. 

This nighttime serum strengthens, repairs, and adds shine to your hair while you sleep. 

This shampoo and conditioner duo add tons of nourishment to hair thanks to ingredients like plant-based proteins and niacinamide. 

This vitamin-infused serum helps mend split ends. 

Formulated with hyaluronic acid for a hydration boost, this conditioner keeps blondes fresh. 

If you have damaged hair, this deeply penetrative hair serum might be the answer to your problems—plus, it has heat protection up to 450 degrees. 

In this mask, amino acids and ceramides work together to repair and strengthen hair. 

This overnight treatment for blondes will soften and repair your hair as you sleep.