Key points from article :
Methylene blue improved physical, biochemical and genetic aging markers.
Appears to make fundamental, long-term changes to skin cells
Tested in cultured skin cells from healthy middle-aged donors.
Fibroblasts experienced a decrease in reactive oxygen species, a reduced rate of cell death and an increase in the rate of cell division.
3D simulated human skin model saw features typical of younger skin.
The study was published in the Scientific Reports journal.
