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  2. Light therapy - Wikipedia

    en.wikipedia.org/wiki/Light_therapy

    Phototherapy is an effective treatment because it forces skin cells to manufacture melanin to protect the body from UV damage. Prescribed treatment is generally 3 times a week in a clinic or daily at home. About 1 month usually results in re-pigmentation in the face and neck, and 2–4 months in the hands and legs.

  3. Intense pulsed light - Wikipedia

    en.wikipedia.org/wiki/Intense_pulsed_light

    Intense pulsed light (IPL) is a technology used by cosmetic and medical practitioners to perform various skin treatments for aesthetic and therapeutic purposes, including hair removal, photorejuvenation (e.g. the treatment of skin pigmentation, sun damage, and thread veins) as well as to alleviate dermatologic diseases such as acne.

  4. Vitamin D - Wikipedia

    en.wikipedia.org/wiki/Vitamin_D

    Vitamin D 3 (cholecalciferol) is produced industrially by exposing 7-dehydrocholesterol to UVB and UVC light, followed by purification. The 7-dehydrocholesterol is sourced as an extraction from lanolin, a waxy skin secretion in sheep's wool. [188] Vitamin D 2 (ergocalciferol) is produced in a similar way using ergosterol from yeast as a ...

  5. 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 28 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 ...

  6. The best kojic acid skin care products to brighten skin - AOL

    www.aol.com/news/best-kojic-acid-skin-care...

    In the context of skin, “kojic acid blocks the production of tyrosinase, which is critical for the formation of melanin, the pigment molecule in the skin,” says Carmen Castilla, M.D., a board ...

  7. Sun tanning - Wikipedia

    en.wikipedia.org/wiki/Sun_tanning

    In 1903, Niels Finsen was awarded the Nobel Prize in Medicine for his "Finsen Light Therapy". [36] The therapy was a cure for diseases such as lupus vulgaris and rickets. Vitamin D deficiency was found to be a cause of rickets, and exposure to sunlight would allow vitamin D to be produced in a person. Therefore, sunlight exposure was a remedy ...