Abstract: The present application is directed to an oil-in-glycol lamellar gel, which comprises (a) at least one glycol, (b) at least one fatty alcohol, (c) at least one cationic surfactant, (d) at least one non-ionic surfactant and (e) at least one amino acid, for application as an addictive for permanent or semi-permanent keratin fiber color products, being the said lamellar gel able to improve dispersion of colorant agents in the color composition and the distribution, diffusion, interaction and maintenance of the colorant agents in the keratin fibers, which results in greater color vitality and retardation of the discoloring process.