L'Oréal Paris has a new sponsored ad for a FREE Sample of Midnight Serum on Facebook and Instagram. This is a targeted offer so it has to pop up in your newsfeed to claim. If you don't see the offer immediately after check the L'Oréal Paris page, try these suggestions. Like the L'Oréal Paris Facebook page and follow @lorealparis on Instagram then like 5-10 of their most recent posts. Search L'Oreal Paris Midnight Serum on Google and navigate through the results for a few seconds. Close everything out then keep an eye out for the sponsored post to pop up so you can claim this freebie!