I bought these FlavDrops to disguise the taste of some vitamin powder that I drink and also to add some flavour to unflavoured protein shake powder. The raspberry is excellent at covering the strong taste and I mix it with either orange or apple juice, water and just 5 drops of the FlavDrops and it tastes delicious. The raspberry drops really make a big difference and it's far less enjoyable without them. The toffee I found to be fine when added to an unflavoured protein shake too, although I prefer the toffee flavoured MyProtein powder to the FlavDrop toffee flavour.