An oil deep treatment is a moisturizing treatment. I used:

1-2 Tablespoon extra virgin olive oil

I rubbed in and plopped for about 30 min.

I did not like the oil treatment right away but a few days later, once it was washed out, it felt pretty good. It seemed flat and in need of a wash the day after I did
the treatment. As you can see in the pictures it really didn’t seem to do that much for my hair.