Basically, if the cost of shipping & handling is included in the retail sales price, itâs considered taxable. If itâs stated separately and shipped directly to the purchaser, then you may exclude it from sales tax.
In humans, Astaxanthin is used as an antioxidant supplement, and as such, is 10 times more potent than other carotenoids. It's also thought to be good for the cardiovascular and immune systems. Some research also suggests it can alleviate oxidative stress to the eyes and brain.
Astaxanthin is considered safe as an animal supplement. Furthermore, FDA in the United States, have cleared astaxanthin as a food additive, fit for human consumption. There Are Some Mild, But Very Noticable Side Effects to Astaxanthin. The most commonly occurring side effect is the harmless change in pigmentation. With a high dosage of astaxanthin, stoolâs turning orangey-red, or the presence of an orange tint to the skin might be observed in some people.