For HMB get
this. 5 caps a day, spread throughout the day.
For glutamine, if you are buying for performance or recovery or anything like that, don't bother. If you are getting it for intestinal health and immune system benefits, then get
this. If you need capsules, and don't mind paying twice the price, then get
these instead. If you want to pay 3x the price instead of 2x for no good reason, then get the Optimum you linked to before.