Natural astaxanthin is extracted from haematococcus pluvialis algae by super critical carbon dioxide extraction,so there is no any solvent residue,and there is no any harmful solvent for health. It’s the most powerful antioxidant in nature,it can protect cells from free radicals damage. Now we can offer 4 specs of astaxanthin (powder, oil, shell broken, cool water soluble powder). Oil is used to soft gel, powder for tablet, cool water solution powder for beverage or drink. Specs: 1%,1.5%,2%,2.5%,3%,4%,5% powder capability:5000kgs/year packing size:5kgs/al tin