Astaxanthin is a potent antioxidant and is often referred to as the king of carotenoids due to its numerous health benefits. It is known for its ability to support brain, eye, joint, skin, and cardiovascular health. Astaxanthin also acts as an anti-inflammatory agent, boosts the immune system, and protects against damage caused by free radicals. Other synonyms for astaxanthin include "red algae pigment," "haematococcus pluvialis extract," and "xanthophyll carotenoid." It is commonly found in seafood, such as salmon, trout, krill, and shrimp. Astaxanthin supplements are also available in various forms, including capsules, soft gels, and powders.