Oxigenada

Oxigenada is a Portuguese adjective meaning oxygenated or oxidized. It is derived from oxigênio (oxygen) with the suffix -ada and is used to describe substances that have gained oxygen or have undergone oxidation, as well as biological tissues that contain dissolved or bound oxygen.

In chemistry, a compound described as oxigenada has either incorporated oxygen into its structure or exists in an oxidized state. A common everyday example is água oxigenada, the Portuguese term for hydrogen peroxide solutions, which are used as antiseptics, bleaching agents, and disinfectants. Concentrations vary, with typical household products around 3% and stronger formulations used in industrial or dental contexts.

In cosmetics and hairdressing, products labeled as oxigenadas typically contain an oxidizing agent, most often hydrogen peroxide, and are used to enable color changes or lightening of hair when combined with dye or bleaching formulations. The term reflects the chemical reaction that releases or transfers oxygen during the process.

In physiology and medicine, oxigenada describes tissues or blood that are rich in oxygen. For example, sangue oxigenado refers to oxygenated blood supplied from the lungs to body tissues, in contrast with sangue desoxigenado (deoxygenated blood).

Notes and usage: while oxigenada is standard in Portuguese, its specific meaning depends on context—chemical oxidation, hydrogen peroxide solutions, cosmetic oxidizers, or oxygenation in biology. In non-Portuguese contexts, the terms oxidation, oxygenation, or hydrogen peroxide are used to convey similar ideas. See also oxidation, hydrogen peroxide, and oxygenation.