Hydroquinone sentence example

hydroquinone
  • All four mono-hydroxyxanthones are known, and are prepared by heating salicylic acid with either resorcin, pyrocatechin or hydroquinone; they are yellow crystalline solids, which act as dyestuffs.
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  • On fusion with caustic potash it decomposes with formation of tetrahydroxy-benzophenone, which then breaks up into resorcin and hydroquinone.
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  • Free hydroxylamine reduces it to hydroquinone.
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  • Quinhydrone, C 6 H40 2 -C 6 H 4 (OH) 2, is formed by the direct union of quinone and hydroquinone or by careful oxidation of hydroquinone with ferric chloride solution.
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  • On boiling with water it decomposes into quinone and hydroquinone.
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  • Photographic developers often contain hydroquinone and these are also well worth investigating.
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  • In the alkaline environment of the urine, arbutin is converted into another chemical, called hydroquinone, which kills bacteria.
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  • These creams contain the chemical Hydroquinone, which is under question with the FDA for potentially causing cancer and other skin ailments.
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  • If they bother you, you can cover them with concealing makeup or try a gentle bleaching agent containing hydroquinone.
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  • For example, the C-Clarifying Serum contains 10 percent prescription strength vitamin C and four percent prescription strength hydroquinone to promote a brighter, more even skin tone.
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  • Hydroquinone is listed as the first ingredient on the label.
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  • Hydroquinone, however, has been flagged by Good Guide as a chemical that can cause irritation.
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  • The active ingredients in the fading creams are hydroquinone for fading and the sunscreen octinoxate.
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  • If you want to hasten the process, use over-the-counter skin creams designed to lighten dark spots; many of these contain hydroquinone, a bleaching ingredient.
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  • While scars eventually fade on their own, people with deep complexions may want to speed the process along with products containing hydroquinone.
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  • Over-the-counter skin bleaches don't contain as much of the active ingredient hydroquinone as prescription bleaches and may be used in less severe cases.
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