Premium Supplements Dietary SupplementMercola Joint Formula supplies 2mg of this effective phytonutrient antioxidant and outstanding member of the carotenoid family.The astaxanthin used for our product is Zanthin supplied by one of the premier suppliers of high quality astaxanthin. It is taken from Haematococcus pluvialis, the most abundant natural source yet discovered.Once the tough cell wall of the algae is cracked open, it"s highly unstable, and must be extracted immediately. Our supplier uses a proprietary extraction process which yields: 85-90% astaxanthin 2% lutein 2% carotene 6% other carotenoids, including small amounts of canthaxanthin The DeepExtract process creates a high quality, stable product. Plus, their O2B Peroxidation Blocker stabilization technology ensures the long-term (24 months) stability and efficacy of your supplement.DeepExtract offers gentle treatment of high-quality astaxanthin at much lower temperatures than those used in expeller press and certain chemical solvent extraction operations. And it"s done in the absence of oxygen – which reduces degradation and chemical changes in the product.This supercritical CO2 process: Produces an extract untouched by chemical solvents Creates astaxanthin free of impurities and residues Offers some of the highest efficacy profiles of any extracted productsOur supplier shuns the use of preservatives in their efforts to stabilize their astaxanthin. Instead they use their proprietary O2B Peroxidation Blocker system, which: Is 100% natural Is non-GMO Is designed to protect sensitive oils until they are consumed Combines botanicals to prevent unwanted chemical reactions Protects expensive and sensitive ingredients Extends the shelf-life of oils Boosts the effectiveness of other anti-oxidants like vitamin E, because it can chemically quench stable vitamin E free radicals No doubt about it, BiovaFlex and Zanthin provide a terrific base of support for your joints.*