Dityrosine (DT) is formed as a result of oxidative cross-linking of tyrosine residues, which increases protein stiffness and aggregation 52
so do some fortified foods, like certain cereals

Diorsnow Essence of light brightening milk serum Ingredients:water, glycerin, dimethicone, propanediol, butylene glycol, ascorbyl glucoside, pentylene glycol, polyglyceryl-10 myristate,polymethylsilsesquioxane, alcohol, tromethamie, phenoxyethanol, acrylates/c10-30 alkyl acrylate crosspolymer, cellulose, maltitol, silica, sodium citrate, dipotassium glycyrrhizate, PEG-7 glyceryl cocoate, CI 77891 (titanium dioxide), parfum, citrus unshiu peel extract, ectoin, sapindus mukurossi peel extract, citrus medica limonum fruit extract, synthetic fluorphlogopite, alcaligenes polysaccharides, biosaccharide gum-1, citric acid, aluminum hydroxide, leontopodium alpinum extract, tremella fuciforms polysaccharide, limonene, potassium sorbate, stearic acid, alpha-isomethyl ionone, kluyveromyces extract, linalool, citronellol, poriacocos sclerotium extract, sodium benzoate, sodium chloride, BHT, sodium DNA, disodium phosphate, ergothioneine, potassium chloride, potassium phosphate

Switch to fragrance-free laundry detergent, fabric softener, and dryer sheets If your air is dry (from climate or heating), run a cool-mist humidifier in your bedroom at night or in living areas during the day
Annals of Hematology, 90(4), 369377