https://www.facebook.com/Clarins?sk=app_251697891584702

You'll receive a sample packet of the new Clarins Extra-Firming Day Cream (All Skin Types) product by mail. US residents only, 18 or older. Limit 1 product per household while supplies last. We're giving away sample packets of Extra-Firming Day Cream (All Skin Types) samples to Facebook account holders to complete the sign-up form starting on 3/13/12 at 12AM EST until 4/10/12 at 11:59 PM EST.
There will be a weekly randomized drawing of names that will be chosen to receive the samples each week for four weeks. Allow 4-6 weeks from the promotion end date (4/10/12) for product to arrive.

Complete list of sample winners will be posted 30 days after the promotion ends on
http://www.clarinsusa.com/Extra-Firming-Giveaway-Winners-List/EFSweepstakes,en_US,sc.html

Doesn't say how many per wk-just "thousands"