Hello!
I don't know of any database of just peer reviewed journals, however it's pretty easy to limit your search results to peer reviewed publications in several of the databases.
First, select a database that covers the subject you are studying.The easiest way to do this is to find a LibGuide on the subject and click the "Articles" tab in the guide to get to the relevant databases. The list of guides is located at http://libguides.brenau.edu/.
Alternatively, use our Databases A-Z LibGuide at http://libguides.brenau.edu/A-Z which has a list of databases that will help. Each database is labeled by the college (Fine Arts and Humanities, etc.) that teaches courses that might need the database. If you see one labeled "multidisciplinary", it is good for research on almost any topic. The 2 big multidisciplinary databases are Academic Search Complete and Research Library.
Once in the database, you can often limit your search to just peer reviewed publications. The screen shots below indicate where to click in the Ebsco and ProQuest databases to limit your results to peer reviewed publications.
