They do sell regular virgin remy. But their relaxed texture and natural rhythyms is processed. Both are great hairs by the way. I've used them both.
What style are you going for?
Natural Rhythms is GORGEOUS textured hair, but it reacts like straightened natural hair. It will swell and revert when exposed to too much moisture. It straightens, but not stick straight. The curl hold is ok, nothing to write home about, though. Definitely split and seal the tracks because it's a lot of hair.
Relaxed Rhythms is a straighter texture processed to look like bone straight relaxed hair. It's also gorgeous. It air dries straight so all you have to do is curl it if you want to. I've read that you should use a spray or something to encourage the curl to stay.