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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 ...
Relaxers/chemical straightening - Chemical relaxers break hair’s disulfide bonds. Lye relaxers contain sodium hydroxide, while non-lye relaxers contain calcium hydroxide and can be used on more sensitive scalps.
Sodium hydroxide is used in some relaxers to straighten hair. However, because of the high incidence and intensity of chemical burns, manufacturers of chemical relaxers use other alkaline chemicals in preparations available to consumers. Sodium hydroxide relaxers are still available, but they are used mostly by professionals.
Getting a relaxer at a young age was quite a common thing, but as is the case with many permanent chemical processes, relaxers can make hair more susceptible to damage and breakage, as it damages ...
Pellets of soda lye (sodium hydroxide) Pellets of potash lye (potassium hydroxide)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).
Chemical relaxers increased in demand throughout the 1800s and 1900s. These relaxers often contained sodium hydroxide ( lye ) or guanidine hydroxide which result in hair breakage, thinning of the hair, slowing of hair growth, scalp damage and even hair loss, according to Gheni Platenburg in the article, "Black Women Returning to Their Natural ...
Guanidine can be selectively detected using sodium 1,2-naphthoquinone-4-sulfonic acid ... Guanidinium hydroxide is the active ingredient in some non-lye hair relaxers.
Perming hair with the sodium thioglycolate method takes only 15–30 minutes of exposure to the sodium thioglycolate solution before a neutralizer solution is applied to bring the pH back to normal and re-bond the hair. The permanent relaxer straightens the hair instead of curling it. The same chemical methods can be used for this, but the hair ...