Ingredient Ratios in SemiColor Hair Dye

Thank you for your question regarding the composition of SemiColor - Red Brown and your interest in formulating a similar Wood Black color.

You have correctly identified the key ingredients listed for SemiColor - Red Brown:

• Basic Brown 16
• Ethoxydiglycol
• Water
• Ethyl Alcohol

These ingredients typically serve specific roles in a semi-permanent hair color formulation:

• Basic Brown 16: This is the primary colorant responsible for the brown/red shade.
• Ethoxydiglycol and Ethyl Alcohol: These act as solvents and carriers, helping to dissolve the dye and facilitate its penetration onto the hair shaft.
• Water: This is the main base or diluent for the formulation.

While I can confirm the presence of these ingredients and the existence of SemiColor - Red Brown and SemiColor - Wood Black products, I must inform you that the exact percentage or ratio of each ingredient used in the SemiColor - Red Brown formulation is proprietary information. This kind of detailed formulation data is not available through the tools I have access to.

Therefore, I cannot provide you with the precise percentages of Basic Brown 16, Ethoxydiglycol, Water, and Ethyl Alcohol in SemiColor - Red Brown.

To formulate a Wood Black color in a similar style, you would typically select appropriate black basic dyes and adjust the levels of solvents/carriers like Ethoxydiglycol and Ethyl Alcohol, along with water, to achieve the desired color intensity, viscosity, and application properties. However, without the specific ratios from the reference product, you would need to develop your own formulation based on general knowledge of semi-permanent hair color systems and testing.