I emailed a Pharmacist friend of mine at Pharmacist's Ultimate Health and asked his opinions on creatine and 6-oxo, just thought I'd post his response... not much new info really, but it's nice to hear a neutral and honest opinion from a pharmacist. He answers questions rather quickly and you can do so from their website for free.
http://www.puhcorp.com
Chris:
Creatine is a substance the body uses to help muscles contract with more force. This allows them to become stronger and grow larger, the latter also being due to some
water retention within the muscle. It is important while on creatine to continue to workout, and to keep well hydrated.
The compound 6-oxo is still more propaganda than it is science. It is claimed to be a mild aromatase inhibitor, meaning it blocks an enzyme responsible for estrogen production. The theory is less estrogen and more testosterone means a leaner and more muscular physique. I would recommend caution if considering 6-oxo as we really don't know enough about potential interactions and side effects. Hope this information helps.