Redken Professional Shades EQ Processing Solution 1L is a dedicated developer for Shades EQ Gloss that is approximately a 7-volume hydrogen peroxide developer. Key Benefits & Features Acidic pH maintenance: Ensures the ideal environment for hair colouring, contributing to consistent tone, depth, and lasting results when paired with Shades EQ Gloss. Viscosity stabilisation: Helps the product maintain its texture for smooth application and reliable performance. Preserves natural pigment: Does not lighten the hair's natural colour, allowing for precise toning without altering the hair's base shade. Ideal For: Most beneficial for hair professionals looking to achieve consistent and lasting results in hair colouring while maintaining the integrity of the hair. THIS IS A PROFESSIONAL PRODUCT AND WE RECOMMEND IT IS ONLY USED BY HAIRCARE PROFESSIONALS.