Day 4 Update!

I hadn't noticed a difference by Day 3, so I decided to wait another day before taking pictures and updating on any changes.

Here is my progress after using Crest 3D White Professional Effects Whitestrips for 4 days:

I've noticed a small difference in my front two teeth, but none yet on my canines (which are extremely yellow, this picture doesn't do them justice). Also, I haven't really noticed any difference in my bottom teeth.

I did have a little bit of a freakout yesterday morning when I looked in the mirror and realized the bottom half of my two front teeth were whiter than the top half, but the color evened out after I used the strips again last night.