I saw this on discovery/TLC or CNN a while back. Can't remember which, the product is Astafactor an Astaxanthin supplement. They, Aquasearch, claim to have one of the strongest antioxidants out there. They also site numerous studies to support this claim.
I have tried it, but not really willing to vouch for per se.
http://www.astafactor.com/antioxidant.htm
I use the above, ALA, Glutamine Peptides, CoQ10 and Siliphos (a "bio-enhanced" Milk Thistle), and vitamine C. I keep everything in at the low to moderate range for recommended dosages.
On the plus side, I haven't been sick (cold, flu, etc) for more than (literally) 12hrs in almost 2 years now. That's about when I started taking Glutamine and ALA. I used to get several colds a year. Who knows if there's a relationship on that count, but I did notice too many other changes (body composition, recovery rates, etc) right after starting the glutamine/ALA to ignore those two. On the other hand, I have no idea what the impact of all the other crap has been...