Skin1004 travel kit + serum

Centella Skin 1004 most popular products. I bought them for myself, but unfortunately, they didn't suit my skin. In the travel kit, I tried only 2 out of four products, except for the cleansing oil (which is still unopened), and in addition to the kit, there is a new serum 30ml, the same as in the kit. I only opened the box of the serum to check if everything was okay. The packaging box is slightly torn at the top. Opened a week ago.