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This is a list of substances or materials generally considered discredited. A substance can be discredited in one of three ways: It was widely believed to exist at one time but no longer is. Such substances are often part of an obsolete scientific theory. It was once believed to have drastically different properties from those accepted now.
Use of old mineral names is also discontinued, for example when a name is no longer considered valid. Therefore, a list of recognised mineral species is never complete. Minerals are distinguished by various chemical and physical properties. Differences in chemical composition and crystal structure distinguish the various species.
The claim that applying minerals directly to the skin in the form of cosmetics has health benefits, however, has inspired some scientific controversy. [3] Historically some mineral additives have proven to be poisonous to the skin, such as lead. [4] and the mineral Bismuth that can cause a negative skin reaction. However the kinds of minerals ...
These Energizing Eye Masks are formulated with amino acids, hyaluronic acid glycerin and sea moss to boost moisture levels, improve skin's appearance, smooth out fine lines and wrinkles and to ...
Mineral makeup most commonly refers to a foundation in loose powder format. The most common minerals used as the base are mica, bismuth oxychloride, titanium dioxide, or zinc oxide. However, talc is also a mineral, so a talc-based powder could be considered a "mineral makeup"—although most mineral makeup sold makes a point of being talc-free ...
Mineral water: Danone: Common in Indonesia as a genericized mark for any mineral water. [citation needed] Aqua-lung: Open-circuit underwater breathing set with demand valve: See Aqua-lung#Trademark issues: Or nowadays often merely "scuba", or "air scuba", when there is a need to distinguish from rebreathers [citation needed] AstroTurf ...
Researchers compared how three antioxidants affected gray hair outcomes in mice: hesperetin, diosmetin, and luteolin, and found that one helped mitigate hair graying.
He noted that calomel had harmful effects causing gangrene on the skin, loss of teeth, and deterioration of the gums. [8] On May 4, 1863, William A. Hammond , the United States' surgeon-general, stated that calomel would no longer be used in the army as it was being abused by soldiers and physicians alike. [ 8 ]