Color pigments make up the majority of colorants used in cosmetics and include both organic and inorganic pigments, available in various combinations. Various reasons, such as light source and temperature, can affect the visual appearance of the products. While the color perception of these pigments varies from individual observation, reproducible color formulations rely on instrumental analysis to quantify color data.
The purpose of cosmetic pigment stability testing is to ensure that pigments added to new or modified products meet the expected physical, chemical, and microbiological quality criteria, as well as functionality and aesthetics when stored under appropriate conditions. As a leading service provider in the cosmetic pigment industry, Daji Belle has a dedicated analytical team and cutting-edge equipment to monitor and analyze a wide range of physical properties of cosmetic pigments and provide clients with accurate and reliable test reports.
Stability Testing Services for Cosmetic Pigments
Compatibility Testing
We evaluate the compatibility of cosmetic pigments with a wide range of cosmetic formulations and ingredients, including testing the compatibility of pigments with solvents, oils, emulsifiers, and other common cosmetic formulation ingredients.
Lightfastness Testing
We assess the lightfastness of cosmetic pigments, which refers to the ability to resist fading or discoloration when exposed to light. Lightfastness testing helps determine a pigment's ability to maintain its color and stability in cosmetic applications where it may be exposed to sunlight or artificial light sources.
Temperature Stability Testing
We evaluate the stability of cosmetic pigments under extreme temperature conditions, both hot and cold. This test helps to determine a pigment's resistance to melting, caking, or changes in texture or appearance when exposed to temperature changes.
PH Stability Testing
We evaluate the stability of cosmetic pigments at different PH levels, which helps to identify any pH-related changes in color, solubility, or stability that may occur in the pigment.
Accelerated Aging Testing
Accelerated aging tests are carried out to simulate the long-term stability of cosmetic pigments in a shorter period. By subjecting pigments to elevated temperature and humidity conditions, we can assess the color fastness and overall performance over a longer period.
Our Testing Methods
|
Our Methods |
Details |
| Colorimetry |
The spectrophotometer or colorimeter is used to analyze a pigment's color intensity, hue, and chroma. This method helps to identify possible color changes in cosmetic pigments over time. |
| Particle size analysis |
We can assess the particle size distribution of cosmetic pigments. The particle size of the pigment is measured and characterized using a laser diffraction analyzer. Changes in particle size may indicate agglomeration, settling, or dispersion problems. |
| Microscopic assay |
Using light and electron microscopy, cosmetic pigments can be visually inspected at a microscopic level, helping to identify changes in particle shape and structure that may occur during storage or under certain conditions. |
| Differential scanning calorimetry (DSC) |
DSC is a thermal analysis technique that detects phase changes, melting points, and thermal degradation, providing information on the stability and thermal properties of pigments. |
| High-performance liquid chromatography (HPLC) |
HPLC is used to analyze the chemical stability of cosmetic pigments. The technique separates and quantifies the individual components of a pigment sample, helping to identify degradation products, impurities, or changes in chemical composition that may occur over time. |
Why Choose Daji Belle?
- Expertise and experience. We have a team of highly skilled scientists and technicians with extensive expertise in the field of cosmetic pigment and stability testing.
- Regulatory compliance. We are well-versed in the regulatory guidelines and requirements for cosmetic pigments. Our services are designed to help clients ensure that their products are safe, stable, and compliant with industry regulations.
- Cutting-edge facilities. We are equipped with cutting-edge equipment and technology to provide reliable and consistent results.
Throughout the stability testing process, Daji Belle's experienced team of scientists and technicians follow industry best practices and regulatory guidelines. We work closely with clients to develop customized test protocols based on their specific requirements, ensuring that cosmetic pigments meet the highest quality and stability standards. If you are interested in our services, please feel free to contact us.
For research use only. Not for use in diagnostic or therapeutic procedures.
Related Services
