https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8421583/
Astaxanthin protective barrier and its ability to improve the health in patients with COVID-19 - PMC (nih.gov)
https://pubmed.ncbi.nlm.nih.gov/33113418/
Potential of natural astaxanthin in alleviating the risk of cytokine storm in COVID-19 - PubMed (nih.gov)
