A-Z of Cosmetic Ingredients and Terms
The technique of performing experiments in a controlled environment outside of a living organism, e.g. in a test tube.
‘In vitro’ is Latin for ‘in glass’. This means the technique of performing experiences in a controlled environment outside the body; for example, in a lab dish or test tube. To help ensure the safety of cosmetics, scientists can use human cells or tissues which are grown in the lab to see how an ingredient behaves — for example, whether it might irritate the skin or cause a reaction. In vitro testing does not use animals.
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