Astaxanthin is a carotenoid that belongs to a group of phytochemicals. It is often found in seafood and algae. A colorful pigment, it is fed to farm-raised animals such as crab and chickens, and is what gives salmon their pink flesh. For humans, it is used as a food supplement, having powerful antioxidant activity and trapping free radicals that damage cells in the body, which is why it also is used as an anti-aging agent. Astaxanthin can be purchased as a supplement in different forms.
Step 1
Determine what form of astaxanthin you would prefer. The supplements come in tablet, capsule or liquid form. Tablets may take longer to break down or may cause discomfort, especially for those with digestive problems. Capsules or softgels break down and are absorbed into the body more quickly.
Step 2
Visit local health or whole food stores and search sites online that sell astaxanthin for best quality and price. There are numerous brands to choose from with prices for every budget. While there may be brands with cheap prices, consider paying more for better quality or purer forms of astaxanthin. Check review sites for tips for making the right selection.
Step 3
Purchase the desired amount and brand from the selected dealer. If ordering online, an account may have to be made with the company and require name, address and payment information. Keep or print invoice emails that provide proof of purchase and may also provide package tracking codes.


