In Vitro: Definition and Applications in Cosmetic Testing
What Does In Vitro Mean?
In vitro literally means “in the glass” and refers to tests performed outside a living organism under controlled laboratory conditions.
In vitro studies commonly involve isolated cells, tissues, organs or biological components rather than testing directly on a living person or animal.
In Vitro Methods in Cosmetics
In vitro methods can be used during cosmetic product development to investigate the properties, performance or safety of ingredients and finished products. Depending on the purpose of the test, they may provide information about biological responses or specific product characteristics under controlled laboratory conditions.
They are an important part of modern cosmetic research and laboratory testing and can complement other testing methods used during product development.
In Vitro vs. In Vivo
The main difference is where the test is performed:
- In vitro: outside a living organism, using isolated biological material.
- In vivo: performed within a living organism.
The choice of method depends on the purpose of the study and the information required.
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