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  2. Melanin - Wikipedia

    en.wikipedia.org/wiki/Melanin

    Melanin (/ ˈ m ɛ l ə n ɪ n / ⓘ; from Ancient Greek μέλας (mélas) 'black, dark') is a family of biomolecules organized as oligomers or polymers, which among other functions provide the pigments of many organisms. [1] Melanin pigments are produced in a specialized group of cells known as melanocytes.

  3. Human skin color - Wikipedia

    en.wikipedia.org/wiki/Human_skin_color

    This is an accepted version of this page This is the latest accepted revision, reviewed on 10 December 2024. "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 ...

  4. Melanocyte - Wikipedia

    en.wikipedia.org/wiki/Melanocyte

    Melanin is a dark pigment primarily responsible for skin color. Once synthesized, melanin is contained in special organelles called melanosomes which can be transported to nearby keratinocytes to induce pigmentation. Thus darker skin tones have more melanosomes present than lighter skin tones.

  5. Biological pigment - Wikipedia

    en.wikipedia.org/wiki/Biological_pigment

    Melanin [22] is a class of compounds that serves as a pigment with different structures responsible for dark, tan, yellowish / reddish pigments in marine animals. It is produced as the amino acid tyrosine is converted into melanin, which is found in the skin, hair, and eyes. Derived from aerobic oxidation of phenols, they are polymers.

  6. Microgram - Wikipedia

    en.wikipedia.org/wiki/Microgram

    In the metric system, a microgram or microgramme is a unit of mass equal to one millionth (1 × 10 −6) of a gram. The unit symbol is μg according to the International System of Units (SI); the recommended symbol in the United States and United Kingdom when communicating medical information is mcg .

  7. Neuromelanin - Wikipedia

    en.wikipedia.org/wiki/Neuromelanin

    Neuromelanin (NM) is a dark pigment found in the brain which is structurally related to melanin. It is a polymer of 5,6-dihydroxyindole monomers. [1] Neuromelanin is found in large quantities in catecholaminergic cells of the substantia nigra pars compacta and locus coeruleus, giving a dark color to the structures. [2]

  8. 11 dermatologist-approved melasma treatments of 2023

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

    It’s also a powerful treatment for melasma since it inhibits the production of pigment in the skin and the transfer of melanin between cells, meaning it can reduce and help prevent dark spots ...

  9. Micro- - Wikipedia

    en.wikipedia.org/wiki/Micro-

    The two alternatives are to abbreviate as "mcg" [14] [3] or to write out "microgram" in full (see also List of abbreviations used in medical prescriptions). The alternative abbreviation may be ambiguous in rare circumstances in that mcg could also be read as a micrigram , i.e. 10 −14 g; however the prefix micri is not standard, nor widely ...