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A relaxer is a type of lotion or cream generally used by people with tight curls or very curly hair which makes hair easier to straighten by chemically "relaxing" the natural curls. The active agent is usually a strong alkali , although some formulations are based on ammonium thioglycolate or formaldehyde .
Despite the claims of the relaxer being safe and natural, the product contained copper, ammonium, and chloride salts and a pH of less than the listed level of 3. [3] Due to these factors, people using the product suffered from hair loss, scalp burns, and (in some cases) green hair color. [4]
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 ...
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 ...
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pH sensitive polymers can be synthesized using several common polymerization methods. Functional groups may need to be protected so that they do not react depending on the type of polymerization. The masking can be removed after polymerization so that they regain their pH-sensitive functionality.
Social Security recipients saw their monthly check grow by 2.5% in 2025 thanks to a cost-of-living adjustment (COLA) designed to offset the dollar-diminishing power of inflation. Beneficiaries get ...
Given its greater H + concentration, the formula yields a lower pH value for the weak base. However, pH of bases is usually calculated in terms of the OH − concentration. This is done because the H + concentration is not a part of the reaction, whereas the OH − concentration is. The pOH is defined as: