― Sample Sunday is on two L'oreal's Youth Code products. I used these two samples on two different days. I wanted to try them back to back so I could compare them. ∙ The Youth Code 'Serum Corrector' was exactly as stated; a serum. It has a smooth consistency that my skin drank right up. I had enough to work into the outer corners of my eyes. It even had a bit of a cooling sensation. ∙ There wasn't a coupon with this card, however. And since the price on these two products is higher [...].