Higher Nature Astaxanthin & Blackcurrant 90 Capsules # AST090Astaxanthin & Blackcurrant # AST090 Research suggests that Astaxanthin has tremendous promise for maintaining healthy eyes, joints and the immune system. Astaxanthin may also help maintain a healthy cardiovascular system. Higher Natures Astaxanthin is obtained from an unpolluted source of marine algae, Haematococcus pluvialis. Blackcurrants are an excellent source of anthocyanidins, polyphenols and vitamin C.