| Developing agents most readily available were metol, hydroquinone, and Phenidone. |
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| This may be due to the reaction products that are formed when hydroquinone is present. |
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| The formation of the dimers is strongly favored by the contiguous presence of quinone and hydroquinone. |
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| Cosmetic improvement has been reported with laser therapy or topical treatment with tretinoin or hydroquinone. |
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| The creams often contain dangerously high amounts of hydroquinone, a depigmenting chemical that can be harmful or fatal in large doses. |
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| Bleaching agents include hydroquinone, which is available in 2 to 4 percent creams and gels. |
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| A similar explanation might account for the failure to detect the genotoxicity of hydroquinone. |
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| Catechol and pyrogallol may be substituted for hydroquinone, but are not as suitable. |
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| In 1880 he discovered the photographic developing properties of hydroquinone. |
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| A combination of tretinoin cream and a bleaching cream containing hydroquinone may be helpful in fading some types of melasma. |
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| If Canadians are concerned about using hydroquinone, they can review the list of ingredients to determine if it is found in the product. |
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| The uva ursi is effective in all kidney problems, it contains hydroquinone, which acts as an antiseptic in the urinary tract. |
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| Polymerisation is stabilised by phenolic derivatives, most often 10 to 15 ppm of hydroquinone monomethyl ether. |
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| The chemical state of dopamine changes from a protonated hydroquinone in acidic media to an oxidized quinone in basic environments. |
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| Use of a retinoid for the manufacture of a topical medicament for treating post-inflammatory hyperpigmentation of noncaucasian skin, the medicament not containing hydroquinone or 4-hydroxyanisole. |
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| The so-called quinhydrone electrode, containing equivalent amounts of p-benzoquinone and hydroquinone, is used to determine hydrogen ion concentrations of unknown solutions. |
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| In particular, the range includes vanillin and ethyl vanillin, hydroquinone and catechol in addition to synthesis intermediates such as coumarin used in fragrances. |
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| While hydroquinone occurs naturally in some foods, there is no evidence to show that the natural presence of hydroquinone in food poses a health risk to Canadians or that Canadians should avoid foods containing hydroquinone. |
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| The industry association commented that a study on the mode of action for hydroquinone submitted during the designated public comment period was not taken into account when finalizing the assessment. |
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| Reversa UV Anti-Spot Lightening Cream SPF 15 is specially formulated to help reduce the appearance of brown spots and other signs of skin aging, without chemical hydroquinone. |
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| Therefore, inhibitors, such as phenothiazine, hydroquinone, and hydroquinone mono methyl ether, are commonly used to prevent polymerization. |
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| Topical bleaching agents such as hydroquinone, kojic acid and azelaic acid can reduce signs of aging. |
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| Diphenylamine and hydroquinone usually play an inhibited role in the radical polymerization. |
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| Attendees will discover advancements in comprehensive skincare and rejuvenation, including alternative protocols to traditional hydroquinone use. |
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| Citrus bioflavonoids, natural extracts that function similarly to hydroquinone, gently diffuse melanin, resulting in a more natural, brightened appearance. |
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| Ochronosis is usually seen in darker skin tones when hydroquinone is used in high concentrations or if a low concentration is used for extended time periods. |
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| Hydroquinone products take 4 to 6 weeks to show an effect because the agent needs time to penetrate the skin and alter melanocyte metabolism. |
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