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A lye relaxer consists of sodium hydroxide (also known as NaOH or lye) mixed with water, petroleum jelly, mineral oil, and emulsifiers to create a creamy consistency. On application, the caustic "lye cream" permeates the protein structure of the hair and weakens its internal bonds, causing the natural curls to loosen out as the entire fiber ...
Hair straightening using a hot comb or relaxer has a long history among women and men of African American descent, reflected in the huge commercial success of the straightening comb popularized by Madam C. J. Walker and other hairdressers in the early 1900s. [16]
Sodium hydroxide, also known as lye and caustic soda, [1] [2] is an inorganic compound with the formula NaOH. It is a white solid ionic compound consisting of sodium cations Na + and hydroxide anions OH − .
Lye is a hydroxide, either sodium hydroxide or potassium hydroxide. The word lye most accurately refers to sodium hydroxide (NaOH), [ citation needed ] but historically has been conflated to include other alkali materials, most notably potassium hydroxide (KOH).
Conk hairstyle. The conk was a hairstyle popular among African-American men from the 1920s up to the early-to-mid 1960s. [1] This hairstyle called for a man with naturally "kinky" hair to have it chemically straightened using a relaxer called congolene, an initially homemade hair straightener gel made from the extremely corrosive chemical lye which was often mixed with eggs and potatoes.
Edward Lye (1694–1767), English scholar; Len Lye (1901–1980), New Zealand-born artist; James Lye, Singaporean actor; Kåre Arnstein Lye (1940–2021), Norwegian ...
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From a materials scientist: if indeed lye is a master category and NaOH is just one type of lye, the article should be revised to incorporate the different types of lye (i.e. potash lye, caustic soda lye, etc). For now the article presumes that all lye is NaOH, which is apparently incorrect.