https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5946307/Astaxanthin in Skin Health, Repair, and Disease: A Comprehensive Review - PMC (nih.gov)  https://pubmed.ncbi.nlm.nih.gov/29136080/Ultraviolet radiation-induced immunosuppression and its relevance for skin carcinogenesis - PubMed (nih.gov)  https://pubmed.ncbi.nlm.nih.gov/11101875/Immune suppression and skin cancer development: regulation by NKT cells - PubMed (nih.gov)  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3279601/The Immunologic Revolution: Photoimmunology - PMC (nih.gov)  https://www.sciencedirect.com/science/article/abs/pii/S1043661819327367Astaxanthin anticancer effects are mediated through multiple molecular mechanisms: A systematic review - ScienceDirect  https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4515619/Multiple Mechanisms of Anti-Cancer Effects Exerted by Astaxanthin - PMC (nih.gov)  https://pubmed.ncbi.nlm.nih.gov/31370257/Do We Utilize Our Knowledge of the Skin Protective Effects of Carotenoids Enough? - PubMed (nih.gov)   https://pubmed.ncbi.nlm.nih.gov/29246280/Continuous astaxanthin intake reduces oxidative stress and reverses age-related morphological changes of residual skin...