Final answer:
The processing time for SoColor Blended naturals and Reflect Collections is generally 35-45 minutes and can vary based on certain hair factors. A strand test is recommended to ensure desired results.
Step-by-step explanation:
The processing time for SoColor Blended naturals and Reflect Collections by Matrix is typically up to 35-45 minutes depending on the desired result, texture, porosity, and the natural level of the hair.
It's essential to follow the manufacturer's instructions for specific timing as well as performing a strand test before applying the product all over.
This timing allows the color to fully penetrate the hair shaft and develop into a vibrant and even shade. Remember, when in doubt, consulting the product's technical guide can provide additional insights.