ICE is a flavour enhancer for DIY mixing. Standalone is a flavour that creates a fresh-hit-throat compared to menthol. But it is totally menthol-free.
It is very helpful, in order to transform any kind of eliquid to a mint-like ejuice. It is also an expert tool to bring the different flavours in the foreground. If you have mixed flavours that have a big and unclear middle-taste, ICE will bring them all in the top.