Elasticizer Pre Shampoo Treatment, from £28, philipkingsley.co.uk
As oppose to coating the hair cuticle, this unique pre-shampoo treatment works to lock moisture into it, creating stronger and more supple hair that has a healthy bounce. From your first application, your hair will be transformed – silky, soft and never weighed down. Wet hair, and apply from root to tip before shampooing. After five to ten minutes, wash off and shampoo and condition as usual. Use every two or three hair washes for best results.