If you're trying to find some way to get a date by Valentine's Day, you can scratch spray-on pheromones off the list. This video from the American Chemical Society explains why you're better off trying to meet someone the old-fashioned way.
A lot of products out there claim to give you the upper hand in meeting potential partners, but Reactions YouTube channel is here to burst your bubble. While it is true that pheromones are a natural means to attract others, no two people are the same when it comes to how they react. Essentially, there's no perfect pheromone that works for everyone, but that's not the biggest problem with the pheromone products you can buy. The spray-on varieties aren't even chemically built for humans!
Most of the products you can purchase include these compounds: Androstenone, Androstadienone and Androstenol. They are in fact effective compounds, but only if you're trying to attract a pig. Those compounds have been isolated from pigs and have been proven to work on pigs, but there's no evidence to support them working on humans whatsoever. So do yourself a favour and spend that money on something else. Besides, you're sometimes better off not spraying anything on yourself so your natural pheromones don't get overpowered.
Can Pheromones Get You a Date? [YouTube]