The unopened essence has expired and cannot be used. Essence is an efficient skin care product, which can quickly replenish nutrition and moisture for the skin in a short time, and make the skin glow bright and healthy again. If the essence is out of date, it can't be used any more, because its nutrients have been destroyed and it has lost its original efficacy. It can't maintain and care the skin, and it may also cause harm to the skin.

Although the essence has not been unsealed, it has passed its effective use period. In this case, it cannot directly act on facial skin. Facial skin is fragile, and once the expired essence is used, it is easy to have various skin problems. The unopened essence can be seen from its shape and smell whether it has deteriorated or not. If there is no deterioration, it means that some nutrients can be reused.

Although it can't be directly used on facial skin, it can be used on other parts of the body. Such as the neck or hands and feet. Compared with facial skin, the skin in these parts is tough, and the nutrients in the essence play a role in moisturizing and hydrating. In particular, the skin of the heel is prone to chapping, which can be improved with essence.

Expired essence can also be used to polish leather goods. Used to polish leather shoes can make leather more shiny. Rubbing leather bags and leather clothes can also moisturize the softened and hardened cortex. These are all ways to use expired essence waste. In order to give full play to the essence, it should be used as soon as possible during the warranty period. After all, essence is an expensive skin care product, which is rich in nutrition and has many benefits to the skin.