That lovely, vibrant reddish colour that you associate with flamingos, lobsters, and other delightful creatures in the animal kingdom? You can thank Astaxanthin for that! Astaxanthin is most commonly found in certain micro-algae species and the animals that consume it like salmon, lobster and shrimp. It is what gives these swimmers their red hue. Another great source of astaxanthin is red fruits and vegetables such as red peppers and guava.