The team at Colab Hair have dedicated all their time to developing the most effective (and most fabulous) dry shampoo - and they're giving away 50 duos for FREE!
It's so easy to apply for this one, but you will need an Instagram account.
Simply follow the link to the post, tag a friend and follow @colabhair - that's all you need to do to be in with a chance.
Colab Hair will send you a direct message on 13th November if you're one of the lucky winners!
There are 100 of these dry shampoos up for grabs, and each person will receive two cans - one for you and one for a friend.
Their fabulous formula won the Cosmopolitan Beauty Awards this year, so you'll definitely want to give it a go!