Not sure how long this one's going to last, so I'd jump on it if you're interested. Visit the Aveeno Facebook page and click "Scan my profile". After you fill out the profile, click "Get Sample" and you should receive this message:
"Thank you for requesting a sample! We’ll send you a FREE sample from our NOURISH+ Hair Care collection soon."
NOTE: Some Facebook apps do not load when accessing from a mobile device.