Do hairstylists get commission when someone buys salon products?

I got a haircut this weekend and the stylist tried to sell me everything under the sun. It wasn't so much a hardcore sales pitch, but she explained every product she used on my hair and what the benefits of using it were.

I did kind of appreciate it because usually they don't really tell you what they are using or why they are using it. But I still wonder if it was an attempt to make a little extra money on her part.