Selenium sulfide shampoo

9.1 Golden pyrite with silvery hematite from Elba Island, Italy. The specimen is 12 cm wide. 9 Ore Deposits and Economic Minerals KEY CONCEPTS • We mine many minerals from Earth. • Some ores are valued for their mineral properties, some for the elements they contain, and others because they contain valuable gems. • The best ore deposits are those containing large amounts of ore minerals. • The best metal ore minerals are those that contain large amounts of metals of value. • Most metallic ore minerals are native elements, sulfides, sulfosalts, oxides, or hydroxides. • Ore deposits are highly variable in nature and origin. • The most important kinds of ore deposits are magmatic, hydrothermal, and sedimentary. 9.1 Mineral Commodities 9.1.1 Mineral Resources Earth gives us many mineralogical resources, also called mineral commodities. Fewer than a dozen minerals and eight or nine elements dominate the crust – we use most of them in our daily lives. Other elements and minerals that exist only in small amounts and have uneven distributions, are equally vital. We mine some ores because they contain elements that have the metallic properties of conductivity, strength, or shiny appearance. We mine industrial minerals such as halite, gypsum, clays, calcite, asbestos, micas, and zeolites to make salt, plaster, ceramics, construction materials, electronic components, chemical filters, and many other things. We also quarry large quantities of limestone (to make cement) and building st...

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2 and has antifungal properties. Selenium Sulfide Shampoo is the first line of defence against dandruff, fungal skin infections, and scalp seborrheic dermatitis (a health condition that causes dry, red, scaly, and skin that is itchy). It is available both on a doctor’s prescription and over the counter medicine. Selenium sulfide functions in two ways. It works as a moderate antifungal, preventing the yeast that causes skin infections from developing and spreading. It also encourages your body to produce less dead skin, which aids in the treatment of dandruff and seborrheic dermatitis of the scalp. Table of Contents • • • • • • • • • • • • • • What does Selenium Sulfide do? Selenium sulfide appears to exert a cytostatic effect on the epidermis and follicular epithelium, lowering corneocyte formation and flaking. It has antibacterial, anti-seborrheic, and modest antifungal activity, which contributes to its efficacy. In the treatment of tinea capitis, selenium sulfide also decreases the spread of viable spores. Selenium Sulfide Shampoo Brands On the scalp, • Selsun Blue Tinea Versicolor/Dandruff Shampoo • • Selukos Anti-Dandruff Shampoo • Vichy Dercos Oily/Dry Hair Dandruff Shampoo • Various uses of Selenium Sulfide Shampoo For the treatment of Seborrheic Dermatitis Sulfur ointments containing resorcin or salicylic acid were the standard forms of local treatment for seborrheic dermatitis of the scalp until three years ago. The majority of patients, particularly women, were v...

Paul Sterchele, in Encyclopedia of Toxicology (Second Edition), 2005 Toxicokinetics There is minimal absorption of anionic, nonionic, and amphoteric surfactants. Antidandruff shampoos may contain zinc pyridinethione and selenium sulfide. The pharmacokinetics of zinc pyridinethione have been evaluated via multiple routes (percutaneous, oral, intravenous, intraperitoneal) and in several species (rats, rabbits, monkeys, dogs)‥ Selenium sulfide is poorly absorbed. Peak serum levels of lindane (an ingredient in shampoos used to treat lice infestation) occur ∼6h after a single dermal application. Lindane is highly lipid soluble and is stored in adipose tissue. Lindane is metabolized in the liver to chlorophenols. Amphoteric, anionic, and nonionic surfactants are eliminated in the urine and feces. Selenium salts are excreted in the urine. Lindane has a half-life of ∼18–21h following dermal application. Shayne C. Gad, in Encyclopedia of Toxicology (Second Edition), 2005 Animal The toxicity depends on the molecular form. More soluble compounds, for example, sodium selenite, are more toxic than the less soluble elemental selenium, selenium sulfide, or selenium disulfide. Selenium dioxide is highly to moderately toxic, with oral LD 50 values in rodents from 20 to 70mgkg −1. The dermal LD 50 for selenium dioxide in rabbits is 4mgkg −1. Oral LD 50 values for sodium selenite range from 14 to 7mgkg −1, whereas an LD 50 of 138mgkg −1 was noted for selenium disulfide, and an LD 50 of >6gkg...