My hair is dull and feels rough after frequent coloring. How do the ingredients Q10, oleic acid, and vitamin C specifically help with this?

These ingredients are included to address specific concerns that arise from repeated coloring. Dullness and roughness often occur because the chemical process of permanent dyeing can stress the hair fiber, making the cuticle layer rough and reducing light reflection (shine). Q10 (Coenzyme Q10) and Vitamin C (Ascorbic Acid) function as antioxidants within the formula. Their role is to help neutralize free radicals generated during the oxidative coloring process, which contributes to protecting the hair protein from some of the associated stress. This can help the finished color retain a more lively, glossy appearance for longer. Oleic acid, a fatty acid naturally found in some oils, works on a different aspect. It has emollient properties that help condition the hair shaft, improving its texture. By coating and smoothing the hair fiber, it can increase flexibility and reduce the rough, dry feel that makes hair tangle easily. Together, these components aim to improve the sensory feel and visual outcome of the coloring process, making the hair look shinier and feel softer post-application, which is particularly relevant for hair that has become tired-looking from frequent color use.