This YSL 'Top Secrets' primer is so lush but kind of amazing. I started using it this week with skepticism but have since been won over. It reduces fatigue and invigorates your skin, tricking it into thinking you have been at a detox retreat for the last month, sipping on goji juice and getting 12 hours of sleep a night. Combining everything from seaweed to sugar from oats and caffeine, it's a magical cocktail for your skin with no hangover in sight.