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Topic: Hydroquinone

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	Hydroquinone \| Technology Transfer Network Air Toxics Web site \| US EPA
		Hydroquinone is used as a developing agent in photography and as an antioxidant in rubber and food.
		Chronic occupational exposure to hydroquinone dust has resulted in eye injuries, which varied from mild irritation and staining of conjunctivae and cornea to changes in the thickness and curvature of the cornea, loss of corneal luster, and impaired vision; prolonged exposure is required for the development of severe ocular effects.
		Hydroquinone is a white crystalline solid that is soluble in water.
	www.epa.gov /ttn/atw/hlthef/hydroqui.html (1256 words)

	Hydroquinone - Wikipedia, the free encyclopedia
		Hydroquinone is the name recommended by the International Union of Pure and Applied Chemistry (IUPAC) in its 1993 Recommendations for the Nomenclature of Organic Chemistry.
		Hydroquinone has a variety of uses principally associated with its action as a reducing agent which is soluble in water.
		Hydroquinones are one of the two primary reagents in the defensive glands of bombardier beetles, along with hydrogen peroxide (and perhaps other chemicals, depending on the species), which collect in a reservoir.
	en.wikipedia.org /wiki/Hydroquinone (443 words)

	Hydroquinone (HSG 101, 1996)
		Hydroquinone is extensively used as a reducing agent, as a photographic developer, as an antioxidant for many oxidizable products, as a stabilizer or polymerizing inhibitor for certain materials that polymerize in the presence of free radicals, and as a chemical intermediate for the production of antioxidants, antiozonants, agro-chemicals, and polymers.
		Hydroquinone induces micronuclei in vivo and in vitro.
		In another study, hydroquinone (at a dietary level of 0.8%) produced a significantly increased incidence of epithelial hyperplasia of the renal papilla and a significant increase in renal tubular hyperplasia and adenomas in male rats.
	www.inchem.org /documents/hsg/hsg/hsg101.htm (3914 words)

	Hydroquinone topical Information on Healthline
		Hydroquinone topical is used to lighten areas of darkened skin such as freckles, age spots, cholasma, and melasma.
		Before using hydroquinone topical, talk to your doctor if you have liver or kidney disease, use other topical medications on the affected area, have allergies to medications, or have other medical problems.
		Accidental application of hydroquinone topical to the lips may cause numbness of the lips and/or a medicinal taste in the mouth.
	www.healthline.com /multumcontent/hydroquinone-topical (842 words)

	Production of hydroquinone - Patent 3937741
		Hydroquinone is made by electrolytically reducing nitrobenzene in an aqueous acid medium and thereafter maintaining the reaction medium containing the amino product, at a temperature of 200.degree.
		Hydroquinone has been produced heretofore commercially by the oxidation of aniline in sulfuric acid with manganese dioxide or sodium dichromate to quinone and the reduction of the quinone with iron dust to hydroquinone.
		It has been suggested that hydroquinone can be produced by the electrolytic oxidation of benzene to quinone in the presence of sulfuric acid, using a lead anode and a lead cathode, and then the reduction of the quinone to hydroquinone.
	www.freepatentsonline.com /3937741.html (2029 words)

	Hydroquinone (bleaching cream). DermNet NZ
		Hydroquinone is a skin-bleaching agent that is used to lighten areas of darkened skin such as freckles, chloasma (also known as melasma), age spots, and acne scars.
		It is important to use hydroquinone regularly as directed until you achieve the desired bleaching, after which use only as needed to maintain results.
		Hydroquinone creams may contain sodium metabisulphite that may cause serious allergic reactions (including anaphylaxis) in certain susceptible people.
	www.dermnetnz.org /treatments/hydroquinone.html (537 words)

	Hydroquinone Information, How to use it, Skin Lightener, Fade Cream (Site not responding. Last check: 2007-10-11)
		INDICATIONS AND USAGE: Hydroquinone 2% Skin Lightening Gel or Cream, indicated for the gradual lightening of hyperpigmented skin conditions such as acne spots, freckles, age spots, and other unwanted areas of melanin hyperpigmentation.
		Because many drugs are excreted in human milk, caution should be exercised when topical hydroquinone is administered to a nursing woman.
		DOSAGE AND ADMINISTRATION: Hydroquinone, 2% Skin Lightening Cream should be applied to affected areas and rubbed in well once or twice daily.
	www.jevelle.com /hydroquinone.html (279 words)

	Hydroquinone Cream prices, buy Hydroquinone Cream online with no prior Hydroquinone Cream prescription needed.
		Hydroquinone Cream is a medicine with three active components.
		Hydroquinone Cream may improve your melasma, but it is NOT a cure.
		Hydroquinone Cream should be used as instructed by your doctor.
	www.1stop-pharmacy.com /Hydroquinone_cream.asp (1244 words)

	Complete Hydroquinone Cream information from Drugs.com
		Before using Hydroquinone Cream for the first time, apply a small amount to an unbroken patch of skin and check in 24 hours for itching, blistering, or excessive redness or irritation.
		Hydroquinone Cream is not recommended for use in CHILDREN younger than 12 years of age.
		Hydroquinone Cream is to be used only by the patient for whom it is prescribed.
	www.drugs.com /cdi/hydroquinone_cream.html (1052 words)

	Hydroquinone Information, How to use it, Skin Lightener, Fade Cream
		The safety of topical hydroquinone use during pregnancy or in children (12 years and under) has not been established.
		It is also not known whether hydroquinone can cause fetal harm when administered to a pregnant woman or can affect reproduction capacity.
		Topical hydroquinone should be given to a pregnant woman only if clearly needed.
	acneclear.tripod.com /hydroquinone.html (415 words)

	Hydroquinone :: Top Sites (Site not responding. Last check: 2007-10-11)
		Hydroquinone contrast, Hydroquinone evidence Hydroquinone ineffectiveness Hydroquinone to a Hydroquinone that Hydroquinone intervention Hydroquinone be used.The Hydroquinone search identified Hydroquinone studies Hydroquinone tobacco interventions that met the inclusion Hydroquinone Hydroquinone these 243 studies, 77 were excluded Hydroquinone the basis of Hydroquinone in their execution or design and were not considered further.
		The Hydroquinone 166 studies were considered qualifying studies.** The Hydroquinone Task Hydroquinone evaluations in Hydroquinone report are based on these qualifying studies, all of which had good or fair execution.On the Hydroquinone of the evidence of Hydroquinone** the Task Force either strongly.
		Hydroquinone identification Hydroquinone assessment of existing disparities are critical in selecting and implementing interventions to assist populations Hydroquinone high Hydroquinone such as low-socioeconomic populations and.
	dir55.info /hydroquinone.html (313 words)

	Hydroquinone (IARC Summary & Evaluation, Volume 71, 1999) (Site not responding. Last check: 2007-10-11)
		Hydroquinone was tested for carcinogenicity in two studies in mice and two studies in rats by oral administration.
		Hydroquinone had no promoting activity in most assays; an increase in the multiplicity of oesophageal tumours was observed in one study and in the multiplicity of renal cell tumours in another study.
		Hydroquinone is metabolized mainly to conjugates, but a small percentage may be converted to 1,4-benzoquinone, conjugated with glutathione or form DNA adducts in vitro.
	www.inchem.org /documents/iarc/vol71/024-hydroquinone.html (362 words)

	Hydroquinone Skin Bleaching Products
		Hydroquinone is the quickest and easiest treatment for lightening brown spots caused by sun exposure, aging, cutaneaous hyperpigmentation and balancing skin tones.
		Hydroquinone is the best treatment for lightening brown spots caused by sun exposure, aging, and cutaneaous hyperpigmentation.
		A special blending of hydroquinone in a light gel that not only helps speed the lightening results but improves skin texture and tone.
	acneclear.tripod.com /hydroquinone_skin_bleaching.html (487 words)

	Dinsdale dermatologist-developed skincare
		Hydroquinone is a topical skin lightening agent that decreases the formation of melanin in the skin.
		It is often referred to as as a bleaching cream as it lightens pigment clusters.
		Hydroquinone is used to treat darkened skin areas including freckles, age spots, brown spots and melasma.
	www.dinsdale5thavenue.com /hydroquinone.htm (249 words)

	Hydroquinone Skin Lightening and Skin Whitening Products
		System with hydroquinone gradually lightens and whitens the skin's color, fades discoloration's, hyperpigmentation, age spots, liver spots, freckles, and skin pigmentation that may arise from exposure to the sun, during pregnancy, and from the use of oral contraceptives - melasma.
		Hydroquinone is the quickest way to skin lightening/whitening and Hydroquinone is the only approved ingredient for skin lightening by the FDA.
		Hydroquinone does not interact well with the sun and may cause adverse side effects if you don't follow directions.
	www.magicclear.com /hydroquinone_skin_bleaching.html (515 words)

	Proposed FDA Ban on Hydroquinone Highlights Need for Safe Skin Whitening Solutions
		Hydroquinone, a toxic and powerful chemical, is the active ingredient in most skin bleaching products.
		Though the complete affects are not yet known, the FDA is now describing hydroquinone as a possible carcinogen -- citing its use with documented links to a skin disfiguration condition known as ochronosis.
		They are 100% hydroquinone and mercury free and safe enough to use even during pregnancy.
	www.prweb.com /releases/2006/10/prweb446236.htm (569 words)

	hydroquinone topical Consumer Drug Information
		Accidental application of hydroquinone topical to the lips may cause numbness of the lips and/ or a medicinal taste in the mouth.
		Use caution and talk to your doctor before using hydroquinone topical if you are also using other topical products with a strong drying effect on the skin, products with high concentrations of alcohol, astringents, spices or lime, or other preparations or processes that may dry or irritate the skin.
		If hydroquinone topical is accidentally used with a product that contains peroxide, wash the skin with soap and water to remove the staining.
	www.drugs.com /MTM/hydroquinone_topical.html (1433 words)

	IngentaConnect Hydroquinone and its analogues in dermatology - a potential healt... (Site not responding. Last check: 2007-10-11)
		However, a recent literature search on hydroquinone as a skin lightening agent suggests that possible long-term effects such as carcinogenesis may be expected as well.
		Metabolites of hydroquinone formed in the liver, e.g., p-benzoquinone and glutathione conjugates of hydroquinone, are mainly responsible for this.
		In the bone marrow, hydroquinone is oxidized into p-benzoquinone because of the high myeloperoxidase activity.
	www.ingentaconnect.com /content/bsc/jcd/2005/00000004/00000002/art00002 (274 words)

	The Truth About Hydroquinone by MedicineNet.com
		Hydroquinone products are popular for their skin-lightening properties in Asian and African cosmetics markets.
		The reason cited for the proposed ban is that studies in rodents show "some evidence" that hydroquinone may act as a carcinogen or cancer-causing chemical, although its cancer-causing properties have yet to be proved in humans.
		Hydroquinone also has been linked with the medical condition known as ochronosis in which the skin becomes dark and thick.
	www.medicinenet.com /script/main/art.asp?articlekey=64167 (382 words)

	Hydroquinone Topical - Drugs & Vitamins - Drug Library - DrugDigest
		Hydroquinone will work best if you avoid excessive exposure to sunlight and wear sunscreens and protective clothing; some hydroquinone products contain sunscreens and other cosmetic ingredients.
		Hydroquinone is for external use only, do not take by mouth.
		To increase the chance that hydroquinone will be effective, keep out of the sun, or wear protective clothing outdoors and use a sunscreen (SPF 15 or higher).
	drugdigest.org /DD/DVH/Uses/0,3915,6150\|Hydroquinone+Topical,00.html (650 words)

	Hyperpigmentation Removal & Skin Bleaching (Hydroquinone, Retin A, PhotoDerm) \| From Yes They're Fake!
		For instance, you may be a candidate for hydroquinone use in hyperpigmentations but not laser resurfacing.
		However it must be noted that higher strengths of Hydroquinone have caused hydroquinone-induced ochronosis (fl speckling in the dermis) in patients with darker skins.
		Hydroquinone is used by itself, it can be mixed with others such as...
	www.yestheyrefake.net /hyperpigmentation.htm (3218 words)

	Ask an Expert: Is Hydroquinone safe (Facial cream)
		Hydroquinone is used to gradually fade hyperpigmented skin.
		Hydroquinone works by causing loss of melanin from skin cells and may also inhibit the production of melanin essentially having a bleaching effect on the skin.
		Hydroquinone is in Pregnancy Category C. No studies in animals have been performed using this medication thus it is not known whether hydroquinone causes damage to an unborn fetus when applied to the skin.
	www.netwellness.org /question.cfm/32934.htm (571 words)

	Hydroquinone
		Hydroquinone formulations (creams) are available both as over-the-counter and prescription products.
		Hydroquinone is mainly used to remove hyper-pigmentation caused by melasma/cholasma, age spots, and acne scars etc. It is well tolerated by most people, but in some cases it may cause allergic and contact dermatitis.
		Hydroquinone is approved in the USA for bleaching, but not in Europe and some other countries because of concerns regarding fetal development and other reasons.
	www.doctorgoodskin.com /pd/hydroquinone (161 words)

	Answers to Our Hydroquinone Bleach Creams and Skin Lighteners
		Hydroquinone is a crystalline substance which is the bleaching agent in most skin lightening creams.
		What's more, some users say they have had adverse reactions to some other hydroquinone creams, but ours had "no unfavorable reaction," and " worked better." The base must aid absorption and bleaching action as well as help fight against sensitivity.
		There are some companies promoting 2% hydroquinone creams with sunscreen; thus implying the cream should be used during the day.
	www.magicclear.com /Q-A-skin-lighteners.html (640 words)

	Hydroquinone :: Online Catalog (Site not responding. Last check: 2007-10-11)
		Hydroquinone success rates include sustained media campaigns; price increases for tobacco products; increased insurance coverage for treatment; individual, group, or telephone Hydroquinone and approved medications.
		Hydroquinone limited, economic information --- to be provided in the full report in 2001 --- might be useful in identifying a) Hydroquinone requirements for interventions, and b) interventions that Hydroquinone public health goals Hydroquinone Hydroquinone than other available options.
		If local goals and resources permit, the use of strongly recommended and recommended interventions should be initiated or Hydroquinone starting point for communities and Hydroquinone systems is to assess current tobacco-use prevention and cessation activities.
	cat56.info /hydroquinone.html (251 words)

	Eldoquin hydroquinone at discount prices from Canadian Online Pharmacy
		Eldoquin (hydroquinone) used to treat freckles, age spots, and other skin discolorations that may occur due to pregnancy, skin trauma, the use of birth control pills, or hormone replacement therapy.
		Do not take Eldoquin (hydroquinone) if you are allergic to any ingredient in Eldoquin (hydroquinone) if you are allergic to sulfites if you have irritated or injured skin, if you are using products that contain hydrogen peroxide or benzoyle peroxide.
		Eldoquin (hydroquinone) is only to be used by the patient for whom it is prescribed.
	www.candrugstore.com /SiteMap/Eldoquin_hydroquinone.htm (1054 words)

	Hydroquinone Vapor Monitor / Monitoring Badge - EMT
		Hydroquinone Vapor Monitor / Monitoring Badge - EMT
		EMT's Hydroquinone Monitoring Kit includes one vapor monitor / monitoring badge, detailed instructions, a monitoring information form, and a shipping label.
		They are designed to provide you with the ability to check exposure levels to Hydroquinone.
	www.emt-online.com /ProductPages/Hydroquinone.htm (144 words)

	Skin Bleaching & Lightening Solutions, Creams, and Pigment Control Products. Hydroquinone and Non-hydroquinone ...
		Hydroquinone lightens the color of the skin areas to which it is applied by killing off the melanin making cells (known as the melanocyte).
		When using Hydroquinone, it is imperative to stay out of the sun for the treatment to work.
		Exposure to sun deteriorates the hydroquinone, rendering it ineffective.
	skincarerx.com /bleaching-creams.html (910 words)

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