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denatured alcohol: ethanol made unsuitable for drinking, often via addition of denatonium.: solvent, carrier, astringent alkyl benzoate C12 - C15 : benzoic acid ester, C 6 H 5 COO(CH
Chemical depilatories contain 5–6% calcium thioglycolate in a cream base (to avoid runoff). Calcium hydroxide or strontium hydroxide maintain a pH of about 12. Hair destruction requires about 10 minutes. Depilation is followed by careful rinsing with water, and various conditioners are applied to restore the skin's pH to normal.
Castor oil and its derivatives are found in many cosmetics as it is "non-comedogenic" (does not exacerbate or contribute to acne). [3]Cerebrosides (cells from the nervous systems of cattle or swine) were once used in some high-end skin-care products to increase moisture retention and to create a smooth skin surface, [4] however the BSE controversy has put an end to this practice.
An assortment of cosmetics and tools An actor applying bold makeup for a stage performance Actor Marcus Stewart wearing bold face makeup in the play Oresteia by Aeschylus (2019) Skin care cosmetics at a pharmacy. Cosmetics are composed of mixtures of chemical compounds derived from either natural sources or synthetically created ones. [1]
Acne affects approximately 50 million people in the US alone, making it the most common skin condition and, while most often found in teenagers, can follow many people well into their 40s. Things ...
Exfoliation methods used in Canada, 2011. Shown: top right, a bath sponge made of plastic mesh; lower right, a brush with a pumice stone on one side and a natural bristle brush on the other side, for foot exfoliation; lower left, a mud mask package for facial exfoliation; top left, a jar of perfumed body scrub to be used while bathing.
Skin whitening, also known as skin lightening and skin bleaching, is the practice of using chemical substances in an attempt to lighten the skin or provide an even skin color by reducing the melanin concentration in the skin. Several chemicals have been shown to be effective in skin whitening, while some have proven to be toxic or have ...
Two U.S. House members who first pushed the Food and Drug Administration in 2023 to investigate the health risks of hair straighteners used primarily by Black women are now asking the agency why ...