I have thick, medium-length hair and use two pumps! I've used Moroccan Oil in the past, but I'm currently using a different hair oil (COSDECO Hair Oil). Maybe it's because it's winter, but even after curling my hair, static electricity builds up, making it look frizzy and dry. I've also noticed it gets brittle and dry. I've tried changing shampoos, but nothing has helped. I remembered the feel of Moroccan Oil and had a good memory of it, so I bought it. The reasons I used the light version are: 1. I don't really like the heavy finish, and 2. I don't want my hair to feel too heavy because I'll be using styling oil afterwards! Even the regular version doesn't leave a heavy finish. It's all a matter of personal preference! Personally, the light version manages perfectly and leaves my hair incredibly smooth! I used to struggle with static electricity every year during this season, but now I don't have to deal with it anymore. It's also great that it doesn't feel heavy at all. Even when I think, "Oh, maybe I put too much on my bangs," it doesn't leave an unpleasant sticky feeling. The sweet, vanilla-like scent is a little strong, so it tends to clash with the scent of styling products or the perfume I'm wearing that day, which is a problem as I often give up on wearing perfume. I've always wished it was fragrance-free or had a subtle fragrance.