When I read and found out more information about Astaxanthin I was looking forward to trying it. It is an antioxidant that is helpful to your body I believe because it targets the free radicals that cause damage within the body. It is the ingredient that causes the pink flamingos to look pink because the eat the krill from the water. After trying a bottle of Astaxanthin I don't recall having noticed anything remarkable occur. Perhaps some people need more antioxidants then others. I may just not need a lot of antioxidant and therefore I didn't notice any changes or perhaps I didn't take Astaxanthin long enough to notice a difference. I seemed to have better results with Zeazanthin because I found that it helped my vision which is still pretty good for being 45 years old and I still don't wear glasses. I think that Astaxanthin could be worth a try if you are needing more antioxidants.