Tag the words “collaboration” and “limited edition” onto any beauty launch and you’re bound to cause a frenzy.

The latest release comes from hair maestros Ouai and fragrance experts Byredo for the sequel to their already successful collaboration. The first drop saw a dry shampoo become an instant sell-out. After much demand from fans, a second drop was released which swiftly flew off the shelves once again. So why was it such a hit? Ouai had taken its bestselling dry shampoo, known for absorbing oils, adding lift and cleansing the hair and scalp, and added Byredo’s iconic Mojave Ghost scent.

Ouai x Byredo Leave In Conditioner review: we tried it and these are our honest thoughts