Hi Lamaur man,
The blue frosting comes as a gel and sachets of powder.
The way I was taught was to do 3 packets of powder, up to the number 2 on your measuring jug of peroxide, and top up to the number 3 of the gel. However, one day I look at manufacturers instructions (wonderful things they are) and it says to use a set amount of peroxide, a set amount of gel, and then use 1-4 sachets depending on the lift you want. Both work well.
Yes its a far less....grainy powdery feel. it does still dry up to an extent but I just really find it nice and far easier to apply. Its worth a try, I think you can get single application packs in Sally, but to buy the normal size box its not cheap.
But....its a great product. xx