The authentic Demon Killer Muscle cotton uses a proprietary purifying process at their states of the art GMP certified facility that removes all impurities, natural oils, and pesticides to ensure that the wick is 100% tasteless. This gives the cloud chaser the purest taste without any unwanted flavor and with no break-in period needed. The Muscle cotton also absorbs and holds e-juice better that other-ecig wicks, keeping your coils juiced so you can go for longer durations.