Cellular Protection. Potent Free Radical Neutralizer. Supports Balanced Immune System Response. Non-GMO. Kosher. Now Astaxanthin is a naturally occurring carotenoid that, due to it unique structure, performs an important role in cellular free radical protection and healthy immune system responses. Now Astaxanthin is derived from Non-GMO Haematococcus pluvialis microalgae and has naturally occurring lutein, canthaxanthin and beta-carotene. This extra strength product has over twice the Astaxanthin (10 mg per softgel) than our regular strength product (4 mg per softgel).