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  2. Unethical human experimentation in the United States

    en.wikipedia.org/wiki/Unethical_human...

    Numerous experiments which were performed on human test subjects in the United States in the past are now considered to have been unethical, because they were performed without the knowledge or informed consent of the test subjects. [ 1] Such tests have been performed throughout American history, but have become significantly less frequent with ...

  3. Natural products certification - Wikipedia

    en.wikipedia.org/wiki/Natural_products_certification

    Natural product certification is an official term that refers to a specific process where products derived from natural sources, such as plants, minerals, or animals, are assessed and verified to meet certain standards or criteria. This certification can cover a wide range of product categories, including food, cosmetics, dietary supplements ...

  4. Rayon - Wikipedia

    en.wikipedia.org/wiki/Rayon

    Rayon, also called viscose [1] and commercialised in some countries as sabra silk or cactus silk, [2] is a semi-synthetic fiber, [3] made from natural sources of regenerated cellulose, such as wood and related agricultural products. [4] It has the same molecular structure as cellulose. Many types and grades of viscose fibers and films exist.

  5. The best hair growth products for women in 2024, tried ... - AOL

    www.aol.com/lifestyle/best-hair-growth-products...

    The best leave-in conditioners. The best hair growth vitamins and supplements. Currently, there are two FDA-approved hair loss medications available for women: minoxidil, a topical solution sold ...

  6. List of polyurethane applications - Wikipedia

    en.wikipedia.org/wiki/List_of_polyurethane...

    Polyurethane foam made with an aromatic isocyanate, which has been exposed to UV light. Readily apparent is the discoloration that occurs over time. Custom-cast polyurethane objects. Polyurethane products have many uses. Over three quarters of the global consumption of polyurethane products is in the form of foams, with flexible and rigid types ...

  7. Johnson Products Company - Wikipedia

    en.wikipedia.org/wiki/Johnson_Products_Company

    [1] [3] By the 1960s had an estimated 80 percent of the black hair-care market and annual sales of $12.6 million by 1970. [1] In 1971, JPC went public and was the first African American owned company to trade on the American Stock Exchange. [1] [5] The company's most well-known product was Afro Sheen for natural hair when afros became popular.

  8. Melanin - Wikipedia

    en.wikipedia.org/wiki/Melanin

    Melanin ( / ˈmɛlənɪn / ⓘ; 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 .

  9. Treatment of human lice - Wikipedia

    en.wikipedia.org/wiki/Treatment_of_human_lice

    The treatment of human lice is the removal of head lice parasites from human hair. It has been debated and studied for centuries. However, the number of cases of human louse infestations (or pediculosis) has increased worldwide since the mid-1960s, reaching hundreds of millions annually. [ 1] There is no product or method that assures 100% ...

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