Viral videos are a great way to get your product in front of a lot of eyes very quickly. However, it is difficult to pinpoint what makes people want to share a video that is essentially a commercial.
It has to have exactly the right mix of content that resonates with a lot of people, and then you have to put it in front of the right eyes to get the ball rolling. There isn't a set formula that can help you determine whether or not a video you produce will go viral. If there were, we would see a lot more videos make the cut.