Change Title of product Page

I have a store and on my product pages that list multiple products, the title of the page (not the permalink) is coming up as one of the product titles.

page: http://losetheflame.com/buy/scentsy/style/whimsy-collection/
Title : <title>Wynken Warmer | Scentsy Products |</title>

I want to be able to change the title of these product pages and even add text to them, if possible. Where would I do that?

Thanks in advance,
Trista