Summer Glau's makeup that she wore for the American Idol season 7 finale, held at the Nokia Theatre in Los Angeles on May 21, 2008.
The products are the ones sold at the boutique featured in the video- Kalologie, probably all of their house branded products.
Makeup artist is Brett Freedman.
I know what you're all going to say: Summer is a beautiful girl and a natural beauty and she doesn't really need all that makeup on her. But you have to remember that this video was a FOX promotion; Summer Glau was walking the Red Carpet after this at the American Idol finale along with Thomas Dekker, thus the use of professionally applied makeup. Most actors have a stylist and team do their makeup and even pick their clothes for them - this is for a work event so the actors go in costume - even when it is a casual costume in this case.
See the result by yourself on these photos of Summer Glau on the red carpet at the 2008 American Idol finale:
Here's a short video featuring Summer Glau and Thomas Dekker at 2008 American Idol Finale: