How many times a week should I use essence? How can I tell if the essence has expired?

Essence is a frequently used skin care product and is very popular. How many times a week should I use serum? How to check if the serum has expired?

How many times a week should I use serum?

Use 2-3 times a week, two or three drops in summer and three to five drops in winter. It should be used after cleansing the skin and evenly applying toner or lotion. Do not use it immediately after cleansing. Before going to bed at night, apply a little on the cleansed face, spread it evenly, and gently massage for a few minutes to allow it to be absorbed.

How to check if the serum has expired

You can check the production date and expiration date on the packaging. Serums have a shelf life of up to two years, although the box usually states three years. You should know that the best shelf life of the active ingredients in the essence is only six months after leaving the factory. Serum will oxidize. However, even so, you will still see some effect if you use a serum that is more than two years old, but the speed of effect and the maintenance results will not be as good as those of newer products. You’ll also notice that serums tend to come in smaller containers than creams and lotions, so they can be used up faster and in a shorter period of time, alleviating your concerns about shelf life.

Can expired essence still be used: Expired essence must not be used on the face. It would be terrible if you get allergic reactions, after all, your face is very important. So never risk applying expired serum on your face.