I take care of it with serum.

It's the Mise en Scène Perfect Original Serum.

I have been using this product continuously because I like Mise en Scène. My hair is a bit damaged from dyeing, so I always apply it from the ends while it is still wet after washing. The scent is nice, and since it is 80ml, it lasts quite a long time. The price is also reasonable, so it is a product I really enjoy using.