If, as it seems, you're suggesting you're about to use a Sarm but haven't yet used Creatine then you need to hold up. Start with supplements like Creatine before using a Sarm
You mean optimal dosing for creatine or cardarine?
In that creatine tub should be a label telling you how much you take it but usually about 3-5g a day. As far as cardarine goes 10-20mg a day.
Will you get results? Well that depends on variety of things but I'd say probably yes.
Creatine is a good supplement to take year around. One of the few supplements with proven peer reviewed scientific studies backing it up. I use it in my pre-workout drink daily...10mg/day.