There is an efficient way to guide remaining pastes and gels from their containers, and it does not include smacking them, squeezing them, rolling them up or cutting them in half. Zero Cleanser packaging was designed based on the principle of centrifugal force, allowing you to fling the bottles around with great control and a positive outcome.
Yongwoo Shim guaranteed this by incorporating a hole in the top of the sealed container, large enough so that you can fit a single finger through it. When the bottle is at its last few unfruitful squirts, just twirl the thing around on your finger -- quickly. The force of this rotating motion will fling all of the remaining face wash to the cap end of Zero Cleanser packaging so that your next squeeze will be as successful as possible.