The actress has gone back to blonde with this quick video tutorial on her social media account.
We've got so used to seeing Jessica Alba with dark locks or just a hint of ombre, that it's totally refreshing to see a new bright blonde hue on her.
The actress shared her hair transformation, from brunette to blonde on her Instagram page.
It looks like Jessica's opted for the balayage technique, where colour is painted, free-hand, onto hair to achieve this natural-looking finish. The colour sits on top of the hair, rather than saturating each strand from root to tip and gives a much softer effect than regular highlights. Balayage is also a great way to brighten up dull winter locks, as demonstrated perfectly by Jessica Alba...
Find out more about the Balayage technique and find out if it could work for you.