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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 ...
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.
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.
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 ...
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OFS is an American technology company known for designing and manufacturing fiber optic solutions. [ 1 ] [ 2 ] [ 3 ] Since the mid-2010s, the company's headquarters in Norcross, Georgia was used as a film studio.
U.S. Vision, Inc. Company type Subsidiary Industry Retail Founded 1885; major expansion of business in 1972 (Philadelphia, Pennsylvania) Headquarters Blackwood, New Jersey, USA Products Eyewear, Contact Lenses Parent Refac Optical Group Website www.usvision.com U.S. Vision, a wholly owned subsidiary of Refac Optical Group, is an international optometric dispensary chain. The vast majority of ...
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.