hydroquinone


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hydroquinone

 [hi″dro-kwin´ōn]
a topical agent used to bleach hyperpigmented skin.

hydroquinone

/hy·dro·quin·one/ (hi″dro-kwĭ-nōn´) the reduced form of quinone, used topically as a skin depigmenting agent.

hydroquinone

(hī′drō-kwĭ-nōn′, -kwĭn′ōn′) also

hydroquinol

(-kwĭn′ôl′, -ōl′)
n.
A white crystalline phenol, C6H6O2, used as an antioxidant, photographic developer, stabilizer, and reagent.

hydroquinone

[hī′drōkwin′ōn]
a dermatological bleaching agent.
indications It is prescribed to reduce pigmentation of the skin in certain conditions in which an excess of melanin causes hyperpigmentation.
contraindications Sunburn, prickly heat, other irritation of the skin, or known hypersensitivity to this drug prohibits its use.
adverse effects Among the more serious adverse effects are tingling, erythema, burning, and severe inflammation of the skin.

hydroquinone

thought at one time to be the toxic component of Xanthium spp., a now discredited view.
References in periodicals archive ?
Hessa Ali Mubarak, Director of the Empowerment and Medical Compliance Department, stated that a lot of the traditional preparations and whitening creams sold without authorization are usually prepared with pharmacological compounds and creams that contain Hydroquinone and Corticosteroids, and Vitamin A products, which cause a compounded effect that exceeds the melanin to affect the overall cells and increase the likelihood of the emergence of the side effects of the Hydroquinone and Corticosteroids.
Wind forward a year and that alarming record has been smashed with a product called Grace Duo that contains 18% hydroquinone.
Sun protection and post-treatment regimens of hydroquinone (or other lightening agent) aid in hastening improvement.
Hydroquinone is a hazardous substance and is classified as a category two carcinogen (suspected of causing cancer), consequently, the use of hydroquinone in over-the-counter skin lightening cosmetic products is banned in the European Union.
A number of studies have investigated the reducing properties of hydroquinone (H2Q) and L- cysteine (Cys) from the mechanistic point of view by variety of oxidants.
They spotted a number of skin-lightening products containing hydroquinone.
Patients were advised pre peeling with hydroquinone and retinoic acid for 3 weeks.
Studies have shown that long term hydroquinone use can cause exogenous ochronosis, which is when your skin turns a bluish and black colour Hydroquinone not only inhibits melanin production to help lighten skin, but long term use can actually damage your pigment cells.
Although hydroquinone and retinoic acid, two active ingredients present in the Obagi Nu Derm line, promote general repair, they also cause photosensitivity and hyperpigmentation or splotchy, uneven skin tone on certain people after several months of use.
Hydroquinone is considered the gold standard for the topical treatment of hyperpigmentation.
com)-- Glycolic Acid and Hydroquinone have both been regarded as effective ingredients to help lighten hyperpigmentation and reverse sun damage.