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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. Fluorescence - Wikipedia

    en.wikipedia.org/wiki/Fluorescence

    The blue light emitted by the brightener compensates for the diminishing blue of the treated material and changes the hue away from yellow or brown and toward white. Optical brighteners are used in laundry detergents, high brightness paper, cosmetics, high-visibility clothing and more.

  5. 10 Best Powder Laundry Detergents - AOL

    www.aol.com/entertainment/10-best-powder-laundry...

    Keep your clothes clean and smelling great with powdered laundry detergent. This classic laundry product has been a staple for decades, thanks to its affordability and ability to get rid of the ...

  6. The 7 Best Laundry Detergents for Hard Water - AOL

    www.aol.com/entertainment/7-best-laundry...

    This powder laundry detergent for hard water is a highly concentrated formula that customers swear works well for laundry washed in hard water systems. Arm & Hammer 33200-01001 Powder Laundry ...

  7. Laundry detergent - Wikipedia

    en.wikipedia.org/wiki/Laundry_detergent

    Laundry detergent is manufactured in powder (washing powder) and liquid form. While powdered and liquid detergents hold roughly equal share of the worldwide laundry detergent market in terms of value , powdered detergents are sold twice as much compared to liquids in terms of volume .

  8. 11 dermatologist-approved melasma treatments of 2023

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

    Castilla recommends this dark spot corrector for its trio of brightening ingredients: kojic acid, niacinamide, and tranexamic acid. The brand recommends applying it twice a day by using three to ...

  9. Talk:Optical brightener - Wikipedia

    en.wikipedia.org/wiki/Talk:Optical_brightener

    3 Optical Brighteners Are Not Laundry Detergent. 4 Paper brightness (whiteness?) 1 comment. 5 Emitted wavelengths range. 2 comments. Toggle the table of contents.