Serum for damaged hair

This is the Mise en Scène serum I bought at Olive Young. Haha. I bought it on the spot without doing any research, but I really like it. Now that summer has arrived, my hair seems quite damaged, perhaps due to UV rays, so I have been consistently applying this serum. I really hate it when serums or oils leave a sticky residue on my hands, but this one doesn't. If I squeeze out a little while my hair is still slightly damp, gently rub it into the damaged areas, and comb it, my hair becomes calmer, shinier, and looks healthier.