Color Stability of Pre-mixed Pigments After Purchase

Regarding your question about whether pre-mixed colors, like green, can change or distort over time after purchase and use:

While manufacturers ensure consistency between production lots (as mentioned in the previous reply), the stability of the color after it's been purchased and potentially incorporated into a product can be influenced by several factors.

Factors that can cause color change or fading over time include:

• Exposure to light: Especially UV light, which can break down pigment molecules.
• Exposure to heat: High temperatures can accelerate chemical reactions that alter the color.
• Interaction with other ingredients: The pH of a formulation or reactions with other chemicals present can affect pigment stability.
• Storage conditions: Exposure to air, moisture, or improper packaging can also play a role.

Therefore, while the initial color is accurate and consistent from the manufacturer, its long-term stability depends on the specific type of pigment used (some are more lightfast or stable than others), the matrix it's in (e.g., a liquid solution, a powder blend), and how the final product is stored and used.