Dr. Garshick explained exactly what tears are, “Tears are made of water, fatty lipids, electrolytes, proteins, and mucin, which together create the three layers in the tears: the mucous layer, the aqueous layer, and the oily layer.” While these things are all great for clearing your eyes, they have no scientific effect on your eyelashes whatsoever. With that being said, if you’re still dedicated to lash growing techniques, make sure you do your research on lash serums since not all of them are created equal.
You might be interested to know that there are technically three different kinds of tears: reflex, continuous, and emotional. Reflex tears are the ones responsible for clearing out debris and irritants while continuous tears are responsible for keeping your eye lubricated (which also helps protect them from infections and issues). Emotional tears are where things get interesting, since researchers have theorized that emotional tears can actually flush stress out of your body. Dr. Garshick elaborated, “Crying can help to relieve stress, and it is thought that emotional tears contain stress hormones and other toxins, though more research is needed.” This means that emotional tears might have serious health benefits in addition to the relief most people feel after a good cry.