Astaxanthin is a water-soluble carotenoid and is the red pigment in salmon and krill. It is the most stable type of all carotenoids and supports eye health and the inflammation response. It is structurally similar to beta-carotene (pro-vitamin A) but has some chemical differences. Astaxanthin, can not be converted to vitamin A (retinol) in the human body. It is an antioxidant with a slightly lower antioxidant activity compared with other carotenoids.
It’s been linked to improved blood flow, and lowering oxidative stress in smokers and overweight people. There is scientific evidence that astaxanthin might reduce the risk for some types of cancers. In addition, hypertension could be lowered since there are observations that astaxanthin may improve elastin levels and arterial wall thickness. Similar to lycopene, it is able to modulate the inflammatory response and could help to reduce joint pain or arthritis.