mustard seed oil

OK so I've been researching all the different affects different lubricants have on sperm. Every study I've found that includes mustard seed oil says that it increases sperm motility for at least an hour and "needs further studying" literally every study I've read says that exact thing. Am I the only one that's frustrated that even years later there still aren't any further studies on the effect of mustard seed oil on sperm? We are trying it this month, even though one blog I read claimed it would be itchy. I'll update on how it works for us.