Like & click on The Challenge tab.
Enter The Challenge & get a free sample of ryou & 3 of your friends - then just tell them what you think

The samples are available while supplies lasts

From the T&C's

Timing: The Sweepstakes begins on March 28, 2011 at 9:00 p.m. Eastern Time ("ET")
and ends on June 30, 2011 at 11:59 p.m. ET (the "Promotion Period") and consists of
fourteen (14) weekly entry periods (herein, "Weekly Entry Periods") as described in the
chart below and a Grand Prize entry period that includes the entire Promotion Period