The quality inspection of beauty cosmetics is very important for export enterprises. Beauty products with excessive ingredients will not only damage the skin, but also cause human allergies and endanger life.
Cosmetics quality control and analysisThe
quality inspection methods for cosmetics mainly include sensory inspection, physical and
chemical inspection, and microbiological inspection.
1. Sensory examination
Color: Observe the color of the sample visually at room temperature and under non direct sunlight conditions.
Aroma: Identify the aroma of a sample through smell.
Appearance: Visually observe the sample at room temperature and under non direct sunlight conditions.
2. Physical and chemical testing
Physical and chemical testing is the process of assessing the quality of cosmetics through physical and chemical methods
Heat resistance test: Place the product sample at (40 ± 1) ℃ for 24 hours, and observe whether the appearance of the product sample changes after recovering to room temperature.
Cold resistance test: Place the product sample at (-10~-5) ℃ for 24 hours, and observe whether the appearance of the product sample changes after returning to room temperature. The cold resistance test temperature for toner is (5 ± 1) ℃.
PH value detection: The pH value of general cream, milk, and toner is required to be between 4.0 and 8.5.
Drying time and firmness: nail polish needs to be tested for drying time and firmness
3. Microbial testing
Total bacterial count: Detect the number of bacteria in cosmetics to ensure they are within a safe range
Mold and yeast: detect the content of mold and yeast in cosmetics to prevent product from mold and spoilage
Other microbiological indicators: Depending on the product characteristics and usage, it may be necessary to test other specific microbiological indicators
Importance of
cosmetics quality inspection1. Ensuring consumer health:
Cosmetics quality inspection detects harmful ingredients such as lead, arsenic, mercury, methanol, etc. in cosmetics to ensure that they do not pose a health hazard to consumers.
2. Ensure product safety: Quality inspection detects harmful substances and heavy metal content in cosmetics to prevent their accumulation in the human body, thereby ensuring the safety of the product.
It is essential to conduct an inspection before transporting large quantities of cosmetics to avoid damage to consumers' skin.
Weproving Inspection provides professional
third-party cosmetics inspections.
Weproving Inspection's laboratory can perform professional chemical analysis on cosmetic ingredients, viscosity, etc.
