 that you take orally to enhance the cosmetic appearance of your skin. So listen to this. In one study, they gave four milligrams of astaxanthin, which, by the way, is the actual amount you get in Purity's AstaFX, and the skin benefits were dramatic. Within six weeks, every single person in the treatment group, 100% of participants in the study, reported that their skin had improved significantly. Everybody got results. Fine lines, hydration, elasticity, all improved.