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Laboratory testing for cosmetic products
Laboratory testing for cosmetic products is a set of scientific analyses and tests performed to ensure a cosmetic product's safety, effectiveness, and quality before it is marketed. These tests allow for the evaluation of various aspects of the product, such as its safety for human health, its functionality, and its stability over time.
In the cosmetics industry, ensuring the quality, safety, and efficacy of products is critical before they are launched on the market. The following laboratory tests are essential to ensure that products meet regulatory standards and pose no risks to consumers.
TYPES OF LABORATORY TESTS
STABILITY TEST
The Stability Test is a fundamental analysis in the cosmetics industry that evaluates how a product maintains its physical, chemical, and microbiological properties over time under different conditions.
What is the Stability Test used for in cosmetics?
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Determines the shelf life of the product before its expiration.
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Ensures stability of color, odor, texture and pH at different temperatures and environments.
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Prevents phase separation in emulsions and other unwanted changes.
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Complies with regulatory standards to ensure product quality in the market.
This test is key to ensuring that cosmetics maintain their effectiveness and safety from manufacturing to final use.
COMMON ADDITIONAL TESTS IN THE COSMETIC INDUSTRY
PHOTOSTABILITY TEST
The Photostability Test evaluates how a product reacts when exposed to light. This analysis is particularly important for products with light-sensitive active ingredients, such as sunscreens, hair dyes, and natural oils, among others, to ensure they remain effective and do not degrade after exposure.
PERCUTANEOUS ABSORPTION TEST
This test measures the amount of a substance that penetrates the skin after topical application. It is important for assessing the safety of potentially hazardous ingredients and ensuring that skin absorption does not exceed safe levels.
COMEDOGENICITY TEST
The Comedogenicity Test assesses whether a product causes pore clogging and, therefore, contributes to the development of acne. It is particularly relevant for products designed for oily or acne-prone skin.
SNIFF TEST
This test evaluates the reduction of underarm odor in antiperspirant deodorants through a known sensory analysis after a specific application period, generally 24 hours after application. It is essential for advertising "24h" or "up to 48h," among other things, on the label.
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