Activated Resorcinol (4-Butyl Resorcinol) Stability and Usage

Regarding your questions about using Activated Resorcinol (4-Butyl Resorcinol) in a serum formulation:

1. Effect of Color Change: Yes, a change in color indicates a change in the chemical structure of the ingredient, which directly impacts its stability and effectiveness. To help prevent discoloration and maintain stability, consider adding antioxidants to your formulation. Using a more stable form, such as NanoRes™ (Liposome 4-Butyl Resorcinol), is another effective approach as it is specifically developed to address the instability issues of 4-Butyl Resorcinol.

2. Morning Application and Sun Exposure: The information about the ingredient not being resistant to heat and light primarily refers to its stability during storage and the formulation process, not necessarily its performance immediately after application on the skin. While exposure to light and heat on the skin can still cause some degradation, the duration of exposure on the skin is generally too short to cause significant loss of efficacy compared to prolonged exposure during storage or processing. Therefore, applying the serum in the morning and going out in the sun does not render it instantly ineffective.

3. Heat Tolerance: Activated Resorcinol is not heat tolerant. It should not be exposed to temperatures exceeding 40 degrees Celsius. It is important to avoid using heat during the mixing process as this can cause the ingredient to deteriorate.

For enhanced stability and ease of use, consider using NanoRes™ which is an encapsulated form of 4-Butyl Resorcinol designed to be more stable and easily dissolved in water.