How to keep fresh containers of different shapes?

The main principle of the use of skin care products is that the hands do not come in direct contact with the bottle mouth or the care products inside the bottle. Therefore, the cream bottle should be digging as much as possible, and lotion bottle can be kept in a dumping manner to ensure zero contamination.
The skincare product of the indenter design is relatively thick and does not reflow. It is best to use a finger to pick it up. When not in use for a long time, wipe with an alcohol swab and save.
Dropper design products are among the most susceptible to secondary contamination. Each time it is used, it is forced to contact the air pollution once. However, this packaging cost is far lower than the pressure head, the overall aesthetic appearance of the package is superior to the pressure head, so even if the brand knows that this is not the best, there are still a lot of goods packaged in this way.
In addition to the dropper design, the wide mouth cream bottle packaging is also a large area exposed to the air; the cosmetic plastic tube is equipped with the skin care products, but also has to bring into the air to accelerate the oxidative deterioration of each access. Any skin care product that can easily “eat” into the air and exposing it to the air in large areas should be used as soon as possible after opening. This type of packaged product cannot be reused for the following year.