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Anti-microbial Preservative Efficacy
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An anti-microbial or preservation efficacy test detects the performance of preservatives added to cosmetic or personal care products. Preservatives are anti-microbial ingredients found in cosmetic formulations that maintain their quality by inhibiting microbial contamination.
We test all our formulations on five challenge microorganisms to check their anti-microbial or preservation efficacy effect.
What Are Challenge Test Micro-organsims & Why We Use Them?
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The challenge microorganisms used in the anti-microbial or the preservation efficacy test include Candida albicans (yeast - a form of fungus), Aspergillus brasiliensis (filamentous mold - a form of fungus), Escherichia coli (bacterium), Pseudomonas aeruginosa (bacterium), and Staphylococcus aureus (bacterium). All these pathogenic micro-organisms represent a broad spectrum of manufacturing & household contaminants that a product can be exposed to, helping us to highlight the power of its preservatives.
How We Test The Preservation Efficacy Of Our Products?
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Step 1
Introducing The Test Product
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The first step involves separating the test product into five containers, each containing one challenge micro-organism. This includes Candida albicans,...

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Step 2
Calculating The Initial Pathogenic Population Count
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Next, the initial population count for all five micro-organisms in the test product is calculated by diluting the solution from the respective containers and...

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Step 3
Tracking The Growth Of Challenge Micro-organisms
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Similar to the last step, the population count for each challenge micro-organism is calculated by the cell plating method at different intervals of time, i.e.,...

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What's The Final Result?
For a product to show anti-microbial preservation efficacy, the bacterial microorganisms should reflect a 99% decline in their concentration by the 14th day and no increase by the 28th day. As for the fungal microorganisms, there should be no increase in concentration by the 14th & the 28th day. At Areoveda, tested products reflect similar results!
Pick from our range of tested Anti-microbial Preservative Efficacy Products Now
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