E liquids can vary in colour for a number of reasons. Some manufacturers choose to add colouring to their liquids to create an attractive looking product. For example, the legendary Heisenberg by Vampire Vape is blue, like the product produced by chemist Walter White in the TV show Breaking Bad. A great many liquids, however, are clear or display a slight yellow or brown colour.
You will often find that the stronger the nicotine strength of an eliquid, the darker it will be. This is because nicotine has a slight colouration to it and this tends to darken over time. If a liquid has been exposed to air for any period of time, it may also appear to be slightly darker in colour.
You could find that several liquids that are the same flavour from the same brand all appear to be slightly different. This is nothing to worry about. It could be that the liquids are from different batches or that some have been steeped for slightly longer than others. These factors should not impact the flavour. If you feel that the flavour of your liquid has been affected in some way and you’re not happy with it, please feel free to contact us as we are always happy to help.