dextrose is very good post workout. After you exercise you want to replenish the muscle glycogen, and dextrose is the best for this. Post workout, try adding 2 grams of dextrose for every gram of protein in your shake. Add 5-10 grams of creatine and you should a nice PW shake.

thank you.. ill start saving up lol

Or you can do oats 30 minutes pre work out and oats directly post. Oats would give you a steady insulin response as opposed to a fast spike from dextrose.

well, a insulin spike before/after workout is nothing!

I go with aroung 30grams before w/o and 50 after
then i take 5grams och creatine before and the same after
+ 1 whey protein (before and after)