Of course, Happy proved all the skeptics wrong, becoming a huge success that remains a cult favorite to this day. Its enduring legacy might have something to do with the fact that it was the first perfume created with “mood mapping,” a technique originally developed by taste and scent manufacturer International Flavors & Fragrances that identifies how different aromas affect our emotions. Clinique’s iconic citrus-floral blend doesn’t just smell vibrant—it’s engineered to make you feel vibrant whenever you get a whiff.

— Read more in The Power of Mood-Enhancing Scents at Oprah Daily.