Paula's Choice offers its Paula's Choice 1-oz. Skin Recovery Antioxidant Serum with Retinol bundled with 3 Free Samples for $34. (The free samples will appear automatically in your cart.) In-cart, the price falls to $27.20. With free shipping, that's the lowest price we could find for the serum alone by $18. It purports to relieve dryness and refine skin. Deal ends November 28.