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  2. Dermatologists Say These Are the Best Gentle Retinol Serums ...

    www.aol.com/dermatologists-editors-best-retinol...

    Retinol is an over-the-counter ingredient that promotes collagen production and enhanced cell turnover, explains Janiene Luke, M.D., a board-certified dermatologist at Loma Linda University’s ...

  3. Vitamin A - Wikipedia

    en.wikipedia.org/wiki/Vitamin_A

    According to a 2017 Cochrane review, vitamin A deficiency, using serum retinol less than 0.70 μmol/L as a criterion, is a major public health problem affecting an estimated 190 million children under five years of age in low- and middle-income countries, primarily in Sub-Saharan Africa and Southeast Asia.

  4. These Derm-Approved Retinol Alternatives Target Fine Lines ...

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    Retinol BenefitsRetinol is highly effective at improving the appearance of fine lines and wrinkles by boosting collagen production, which provides structural support to the skin,” says Dr ...

  5. Retinol - Wikipedia

    en.wikipedia.org/wiki/Retinol

    Retinol was discovered in 1909, isolated in 1931, and first made in 1947. [6] [7] It is on the World Health Organization's List of Essential Medicines. [8] Retinol is available as a generic medication and over the counter. [1] In 2021, vitamin A was the 298th most commonly prescribed medication in the United States, with more than 500,000 ...

  6. The Best Supplements for Men Over 50, According to ... - AOL

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    Zinc and vitamin D are also essential for bone health but have the added benefit for men over 50 by reducing the risk of erectile dysfunction, a condition commonly affecting men over age 40 ...

  7. Vitamin deficiency - Wikipedia

    en.wikipedia.org/wiki/Vitamin_deficiency

    When eaten, beta-carotene is a provitamin, converted to retinol (vitamin A). The concept is that in areas of the world where vitamin A deficiency is common, growing and eating this rice would reduce the rates of vitamin A deficiency, particularly its effect on childhood vision problems. [54]

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