If I had to choose just one beauty product, it would definitely be this. Is the no-rinse detangling spray for kids from Deliplus.
If you have your hair tangled, with only two or three keystrokes on wet or dry hair, makes the hair brush run by almost magically. And it smells great. In the picture above you can see that it's biphasic and you have to shake it before using..
It contains 250ml of product. I've been using about 4 months and you see that I still have a lot of product. Best of all, it's price, it only cost me 1,55€.
The packaging is of hard plastic and is a perfect boat for reuse! Did you try it?