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Thioacetic acid is an organosulfur compound with the molecular formula CH 3 C(O)SH. It is a thioic acid: the sulfur analogue of acetic acid (CH 3 C(O)OH), as implied by the thio-prefix. It is a yellow liquid with a strong thiol-like odor. It is used in organic synthesis for the introduction of thiol groups (−SH) in molecules. [4]
Lipoic acid (LA), also known as α-lipoic acid, alpha-lipoic acid (ALA) and thioctic acid, is an organosulfur compound derived from caprylic acid (octanoic acid). [3] ALA, which is made in animals normally, is essential for aerobic metabolism. It is also available as a dietary supplement or pharmaceutical drug in some countries.
Citranaxanthin – color; Citric acid – food acid; Citric acid esters of mono- and diglycerides of fatty acids – emulsifier; Citrus red 2 – color (red) Cloves – Cochineal – color (red) Coconut oil – a cooking oil, high in saturated fat – particularly used in baking and cosmetics. Sage (Salvia officinalis) –
The preservation of foods has evolved greatly over the centuries and has been instrumental in increasing food security. The use of preservatives other than traditional oils, salts, paints, [clarification needed] etc. in food began in the late 19th century, but was not widespread until the 20th century. [2] The use of food preservatives varies ...
Colour retention agents are food additives that are added to food to prevent the colour from changing. Many of them work by absorbing or binding to oxygen before it can damage food (antioxidants). For example, ascorbic acid (vitamin C) is often added to brightly coloured fruits such as peaches during canning. [citation needed]
Excessive consumption of elemental silver, silver dust or silver compounds can cause the skin to be colored blue or bluish-grey. This condition is called argyria. A similar skin color can result from prolonged exposure to gold, typically as a little-used medical treatment. The gold-induced greyish skin color is called chrysiasis. Argyria and ...
As a cosmetic ingredient, dehydroascorbic acid is used to enhance the appearance of the skin. [10] It may be used in a process for permanent waving of hair [11] and in a process for sunless tanning of skin. [12] In a cell culture growth medium, dehydroascorbic acid has been used to assure the uptake of vitamin C into cell types that do not ...
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 ...