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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.
Depigmentation is the lightening of the skin or loss of pigment. Depigmentation of the skin can be caused by a number of local and systemic conditions. The pigment loss can be partial (injury to the skin) or complete (caused by vitiligo).
Tyrosinase is an enzyme needed in melanin synthesis in the melanin producing cell of the skin, the melanocyte. By reducing the activity of tyrosinase, β-arbutin reduces the synthesis of melanin, leading to a lighter skin tone and the diminished appearance of hyperpigmentation. It is not as potent an inhibitor of tyrosinase as α-arbutin. [6]
It is caused by melanocyte or melanin depletion, or a decrease in the amino acid tyrosine, which is used by melanocytes to make melanin. [2] Some common genetic causes include mutations in the tyrosinase gene or OCA2 gene. [3] [4] As melanin pigments tend to be in the skin, eye, and hair, these are the commonly affected areas in those with ...
Hyperpigmentation can be diffuse or focal, affecting such areas as the face and the back of the hands. Melanin is produced by melanocytes at the lower layer of the epidermis . Melanin is a class of pigment responsible for producing color in the body in places such as the eyes, skin, and hair.
Lotion and shampoo at the Banff Centre. Lotion is a low-viscosity topical preparation intended for application to the skin. By contrast, creams and gels have higher viscosity, typically due to lower water content. [1] [2] Lotions are applied to external skin with bare hands, a brush, a clean cloth, or cotton wool.
With the advent of modern film making in the United States in the 1930s, men's hair and cosmetics re-emerged in the public eye. [1] However, men's beauty products were relatively non-existent on the market until the end of the 1990s. [5] Only a few brands were interested in producing men's cosmetics because it was regarded as a niche market. [6]
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 January 2025. "Skin pigmentation" redirects here. For animal skin pigmentation, see Biological pigment. Extended Coloured family from South Africa showing some spectrum of human skin coloration Human skin color ranges from the darkest brown to the lightest hues. Differences in skin color among ...
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