To serving for maintaining the stratum corneum so keep skin looking healthy and functioning well, there’s some evidence that EFAs can decrease the skin’s sensitivity to the sun.
For example, a 2005 study revealed in the International Journal of pharmaceutics found that topical omega-3 fatty acid can decrease UV sensitivity in skin cells in a laboratory setting. different studies have found similar links between topical omega-3 fatty acid and a reduction in the signs of photoaging. And a 1998 study revealed in Archives of medicine analysis showed that topical application of linoleic acid may decrease UV-induced hyperpigmentation in guinea pigs.
Therefore, though we’re lacking large-scale trials in humans, this research does recommend there’s potential for skin-care products wealthy in omega-3 fatty acid or omega-6 fatty acids to truly improve the look and feel of your skin.
There is additionally some restricted evidence to recommend that topical application of essential fatty acids will help manage an EFA deficiency. Indeed, Dr. Bunimovich specifically cites a 1976 study revealed in the American Journal of Clinical Nutrition. For the study, researchers applied safflower oil to the skin of EFA-deficient rats for fifteen days. subsequently time, they found elevated concentrations of linoleic acid (omega-6) within the rats’ red blood cells, which suggests that topical applications of EFAs will assist to address EFA deficiency within the bloodstream—if you’re a rat, at least.
“When you ingest omega-6 fatty acid [acids], most of it gets broken down by the liver thus not as much makes it to your skin,” Dr. Bunimovich said. “But if you [apply it topically], you’ll get splendid penetration [into the bloodstream].”
However, it’s worth noting that this impact has solely been observed in individuals (and rats) with an established EFA deficiency; if your body isn’t starved for omega-6 fatty acid or omega-3 acids, it won’t have to take them in through your skin.