I recommend this hair essence.

It's hot these days, so instead of using conditioner or treatment, I just shampoo and make sure to apply hair essence. My hair used to be dry and frizzy, but if I pump it twice—once before drying and once while drying—it leaves my hair feeling fresh and shiny. It's a hair essence I use all the time, and it smells great too. The reflection in the photo is too strong, so I took a picture of the unopened box~