Thioglycolic acid corresponding disulfide (2-[(carboxymethyl)disulfanyl]acetic acid or dithiodiglycolic acid): Thioglycolic acid, usually as its dianion, forms complexes with metal ions. Such complexes have been used for the detection of iron, molybdenum, silver, and tin. Thioglycolic acid reacts with diethyl acetylmalonate to form acetylmercaptoacetic acid and diethyl malonate, the reducing agent in conversion of Fe(III) to Fe(II). Scientist David R. Goddard, in the early 1930s, identified TGA as a useful reagent for reducing the disulfide bonds in proteins, including keratin (hair protein), while studying why protease enzymes could not easily digest hair, nails, feathers, and such. He realized that while the disulfide bonds,
African-American hair to as "razor bumps", many prefer not to shave. The Afro-American culture is increasingly embracing natural hair, contributing much to society and media. Such as in art, music, poetry, and other forms of media. From textile artist Sonya Clark, singer Solange Knowles, poet Maya Angelou, and actress Lupita Nyong'o. Also on social media there is an uprising of natural YouTube channels, and blogs. The natural hair community has grown so much they even have their own vocabulary and acronyms. Including in all these different forms of media they are embraced their natural hair, skin, and being. The Natural hair movement