The blue substance, dmso molecules, is a muscle relaxer used by athletes to soothe cramps. unlike most substances, it can pass directly through cell membranes. dmso moves into cells by the process of

Use of DMSO in medicine dates from around 1963, when an Oregon Health & Science University Medical School team, headed by Stanley Jacob, discovered it could penetrate the skin and other membranes without damaging them and could carry other compounds into a biological system. In medicine, DMSO is predominantly used as a topical analgesic, a vehicle for topical application of pharmaceuticals, as an anti-inflammatory, and an antioxidant.[19] Because DMSO increases the rate of absorption of some compounds through organic tissues, including skin, it is used in some transdermal drug delivery systems. 

Photo means light and synthesis means combination so combination of light

Maybe haha