I want to start taking SizeOn again, but have a question?!

I've taken it before around a year ago for 3 months and put on 20 lbs 150 to 170. I was very dedicated, and would like to be back at that point. Since then I have lost some mass (down to 155), and think it will work sucessfully again. My question is, is it necessary to take any creatine on off days.? I've read I could just take creatine mono on off days, but do I have to take any at all.? SizeOn is pretty expensive even though I get it on discount. And also, does relaxing, just laying down and resting (not sleeping) actually rest your muscles.? Health Question & Answer

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