22 Questions
What is the recommended maximum level of lead as an impurity in cosmetic lip products and externally applied cosmetics?
10 ppm
Which heavy metal is allowed as a preservative in eye area products with a limit of 65 ppm?
Mercury
What are the limits for color additives in cosmetics for arsenic, lead, and mercury respectively?
3 ppm, 20 ppm, 1 ppm
Which method is used to examine product properties through the senses of panelists or consumers?
Sensory analysis
What helps determine the stability and shelf life of cosmetic products?
Rheology
Which heavy metal is not allowed in other cosmetic products except in trace amounts?
Mercury
What are the permitted color additives with good manufacturing practices?
Chromium hydroxide green and Chromium oxide green
What does packaging material quality control weed out?
Defective packaging with critical, major, and minor defects
Which sensory analysis method evaluates consumer perception of product efficacy?
Affective tests
What does rheology monitor for cosmetic products?
Viscosity and flow behavior under stress conditions
Which category of skin care products aims to prevent diseases by altering the structure and function of the body?
Drugs
What is the most common form of skin care products?
Emulsions (creams)
According to the FDA, what must cosmetics not be manufactured under?
Conditions that would allow them to become contaminated or harmful
What are the divisions of quality control for cosmetics?
Raw material and packaging material quality control, Finished product quality control, Microbiological quality control, Production line quality control
What are some examples of raw material physical parameters for cosmetics?
Colour, odour, density, refractive index
What does the Drugs & Cosmetic act specify limits for in cosmetic raw materials?
Toxic substances, heavy metals, microbial limits, and pesticides
What method is used to confirm the presence of liquid crystals in a cosmetic emulsion?
Polarized light microscope
What type of light source is required for Small Angle X-Ray Scattering (SAXS) method?
Synchrotron light source
What is the main aim of Production Line Quality Control in large scale assembly type production units?
Ensure good quality of outgoing goods
How is irritancy of a cream preparation evaluated?
Patch test
How is spreadability of a cream base calculated?
Using a spreadability apparatus with glass slides and weight
How is the test for microbial growth conducted?
By incubating the sample under suitable conditions and observing for microbial growth
Study Notes
- FDA regulates the use of heavy metals in cosmetics as ingredients or impurities
- Mercury: allowed as preservative in eye area products with a limit of 65 ppm
- Mercury not allowed in other cosmetic products except in trace amounts
- Lead: recommended maximum level of 10 ppm as impurity in cosmetic lip products and externally applied cosmetics
- Arsenic, lead, and mercury: limits for color additives in cosmetics are 3 ppm, 20 ppm, and 1 ppm respectively
- Chromium: chromium hydroxide green and chromium oxide green are permitted as color additives with good manufacturing practices
- Packaging material quality control: weeds out defective packaging with critical, major, and minor defects
- Sensory analysis: examines product properties through senses of panelists or consumers
- Sensory analysis: methods used include affective, discriminative, descriptive, and use tests
- Sensory analysis: blind and concept use tests evaluate consumer perception of product efficacy
- Sensory analysis: professional experts assess product performance against established scales
- Rheology: helps determine stability and shelf life of cosmetic products
- Rheology: viscosity and flow behavior of cosmetic products are monitored for stress conditions.
Test your knowledge of cosmetic product classification and physical properties with this quiz. Learn about the different functional groups and physical forms of skin-care products.
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