Hi Dave,
Creatine Monohydrate is a natural fuel found in many meats and fish and is also created in humans by the liver. Its purpose is to directly feed the bodys muscles.

The effect taking it manually has is to give your muscles more direct energy to allow you to work out that bit harder and perform those few more reps, as well as improving muscle recovery time, thus you will be attacking the muscles more (If working out correctly) and therefore giving greater lean muscle regeneration in a shorter time period.

Better details can be found here:
http://www.bupa.co.uk/health_informa.../creatine.html

I use this whey daily too:
https://passionford.com/forum/viewtopic.php?t=166673