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  2. Optical brightener - Wikipedia

    en.wikipedia.org/wiki/Optical_brightener

    Laundry detergent fluorescing under ultraviolet light. Optical brighteners, optical brightening agents (OBAs), fluorescent brightening agents (FBAs), or fluorescent whitening agents (FWAs), are chemical compounds that absorb light in the ultraviolet and violet region (usually 340-370 nm) of the electromagnetic spectrum, and re-emit light in the blue region (typically 420-470 nm) through the ...

  3. 4,4′-Diamino-2,2′-stilbenedisulfonic acid - Wikipedia

    en.wikipedia.org/wiki/4,4′-Diamino-2,2...

    4,4′-Diamino-2,2′-stilbenedisulfonic acid is the organic compound with the formula (H 2 NC 6 H 3 SO 3 H) 2 C 2 H 2.It is a white, water-soluble solid. Structurally, it is a derivative of trans-stilbene, containing amino and sulfonic acid functional groups on each of the two phenyl rings.

  4. OnlyOnAOL: Five skin brighteners you need for fall

    www.aol.com/lifestyle/2016-10-20-onlyonaol-five...

    Perricone MD Thio:Plex Intensive 2-Step brightening system, which is a two-part combo that makes your visage brighter, more even and smoother. Fans of Cold Plasma will rejoice, because these ...

  5. Skin whitening - Wikipedia

    en.wikipedia.org/wiki/Skin_whitening

    Skin lightening, brightening, depigmentation, bleaching [ edit on Wikidata ] Skin whitening , also known as skin lightening and skin bleaching , is the practice of using chemical substances in an attempt to lighten the skin or provide an even skin color by reducing the melanin concentration in the skin.

  6. 11 dermatologist-approved melasma treatments of 2023

    www.aol.com/news/11-dermatologist-approved...

    Vitamin C is another useful antioxidant for fighting melasma-related dark spots since it’s also a brightening agent so it will treat existing hyperpigmentation and help prevent new dark spots ...

  7. Benzenesulfonic acid - Wikipedia

    en.wikipedia.org/wiki/Benzenesulfonic_acid

    Benzenesulfonic acid (conjugate base benzenesulfonate) is an organosulfur compound with the formula C 6 H 6 O 3 S.It is the simplest aromatic sulfonic acid.It forms white deliquescent sheet crystals or a white waxy solid that is soluble in water and ethanol, slightly soluble in benzene and insoluble in nonpolar solvents like diethyl ether.

  8. Wet process engineering - Wikipedia

    en.wikipedia.org/wiki/Wet_process_engineering

    After scouring and bleaching, optical brightening agents (OBA), are applied to make the textile material appear more white. These OBAs are available in different tints such as blue, violet and red. These OBAs are available in different tints such as blue, violet and red.

  9. Sizing - Wikipedia

    en.wikipedia.org/wiki/Sizing

    Sizing improves the surface strength, printability, and water resistance of the paper or material to which it is applied. In the sizing solution, optical brightening agents (OBA) may also be added to improve the opacity and whiteness of the paper or material surface.

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