On the shelf life of glycolic acid
Glycolic acid is often discussed, and it has attracted much attention in the way of skin care. However, there is a doubt, that is, whether glycolic acid will expire? This question is not uncommon in online discussions, such as Reddit platforms.

Glycolic acid is an organic acid and has many applications in various products. Looking at its chemical properties, if the storage environment is improper, it may change over time.

Usually, if the product contains glycolic acid, the merchant will mark the shelf life. This period is set because of the stability of glycolic acid under established conditions. If stored in a high temperature, humid place, or in contact with improper substances, its chemical structure may be affected, resulting in loss of efficacy and even deterioration.

On Reddit, many users shared their insights. Some people say that glycolic acid products that have exceeded the shelf life seem to have no significant difference when used; however, some people say that after expiration, the texture and smell of the product change, and the skin care effect is not as good as before.

In fact, glycolic acid does expire. In order to ensure its efficacy and safety, users should keep it properly according to the product instructions and use it within the shelf life. In this way, they can use the power of glycolic acid to achieve the best skin care.