Not quite sure what a nutraceutical is? The term was coined in 1990 and is commonly accepted to mean:
A non-prescriptive product generally sold in forms (such as dietary supplements) that support health.
Nutri~Krill oil is a good source of astaxanthin, a potent antioxidant carotenoid. Astaxanthin also gives krill its red color and acts as a natural preservative preventing oxidation of Nutri-Krill Oil.