It should come through without any problem. The government isn't really capable or interested in trying to stop people from ordering small quantities of product for personal usage. Logistically they really haven't the time, money, manpower etc. If you were trying to get something like 50 bottles of Superdrol delivered it's possible that that amount could draw some unwanted attention and might not clear customs and even then there's a decent chance that it could still make it through. With the sheer volume of mail going through the system on a daily basis it isn't like they're killing themselves trying to intercept every small order of ph, viagra etc. that guys are ordering online.