EDIT: They're requiring a credit card now for shipping purposes, so to heck with this!
I have a feeling these free Luminance skin care samples won't last very long, but for the time being you can request a pack of free toner, moisturizer, and cleanser. You'll have to add it to your cart and checkout, but they don't force you to make an account or add any payment info, so it's all free.
It even comes with a handy instruction guide! I bet the one direction is “put on face.”