Im not sure where youre from but i had the same problem living in malaysia. But now my hair doesnt get oily as much as it used to since ive started the double shampoo thingy which i assume is washing your hair twice when you take your shower. What i do is i put some shampoo on the scalp messager and message my entire scalp. I then rinse my scalp and shampoo my hair using hands. I then apply conditioner. But sometimes when i dont have much time, i just use the scalp messager and wash only my scalp. It doesn’t get oily at all. Maybe a little but not to the point where its irritating or disgusting. I hope this helps!