How does Smiley, the Anti-depressant Perfume [1] work exactly? It couldn't be the dubious science behind it. Perhaps happiness equals a confusing French-to-English translation, an overabundance of exclamation points, and scientific mumbo-jumbo. Here's something from the happy therapy [2] website:

Prescription free happiness, now available?! Smiley offers a unisex and universal range of products with micro-nutrients to activate happiness! ...This antidepressant remedy is to be consumed without any moderation: in the shower, in the bath, for specific use anytime you wish! ... Nothing like it to contain the happy therapy!

And so on. It also comes in deodorant form [3], but doesn't that just make everyone else around you happy?