What about those contact lenses we usually buy in the store?

I suggest you go to a regular optical shop or drugstore to buy contact lenses. Contact lenses belong to medical devices, and the operation of contact lenses requires a medical device license. Ordinary stores have no licenses, and they can't find a merchant if there is a problem.

Many contact lenses sold in jewelry stores are recycled and processed, which is unsanitary and unsafe, and it is easy to cause problems when worn on the eyes.

It is not recommended that you wear contact lenses at the age of thirteen. It is best to wear it when you are an adult. Wearing contact lenses can easily cause problems such as eye inflammation.