Replied By William L. (Nashville, TN, USA) on 08/19/2019
Astaxanthin also comes in 2 mg, 4 mg, 10 mg, and upward. I recommend starting at a lower dosage, once a day, because, like I mentioned above, I learned after just a few days that I'm allergic to Astaxanthin. However, I now take Antarctic Krill Oil, and it contains astaxanthin. Each softgel of this Krill Oil contains 200 MicroGrams of Astaxanthin, so I can still consume astaxanthin, but in a lower dosage than with pure Astaxanthin. I now use it 2 or 3 days a week, 2 or three softgels each day, and my intake of Astaxanthin is now .4-.6 mg each day I use it. My allergy doesn't affect me as it seriously did with 4mg-10mg, and I still notice benefits in my inner ear and eyesight.