It all depends on the person. Personally, creatine monohydrate is my favorite. It's cheap and effective, to me. But, other hate monohydrate and don't react well at all. It's a hit or miss. So, if I were you, start off with creatine monohydrate because it's so cheap, and go from there. Make sure you're drinking a lot of water, at least 1.5 gallons a day, and take monohydrate with some kind of simple sugar. I always mixed mine with grape juice.
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