Sytheon has obtained its third US patent (11,077,035) entitled “Hair Treatment Compositions and Methods.” Sytheon inventors have expanded the use of aryl alkanones in protecting hair fiber/scalp by reducing oxidative stress generated during dyeing process. This is the first product of this category which selectively chelates Fe and/or Cu ions but not the skin/scalp friendly Zn or Ca ions in reducing/eliminating Fenton reaction to happen.    These compositions, more specifically, acetyl zin...