Protect cells throughout the body with free radical-fighting Extra Strength Astaxanthin from NOW. NOW astaxanthin is derived from non-GMO microalgae and features naturally occurring lutein, canthaxanthin and beta-carotene. Astaxanthin has demonstrated higher antioxidant potential than vitamin C, making it a potent force for immune health and healthy skin. Each one-softgel serving delivers 10 mg astaxanthin from Haematococcus pluvialis.