The product you're asking about, the "Keratin Hair Mask Original Brown Regular 300ML," appears to be a common name used for different deep-conditioning keratin masks across various regional brands, often sourced from countries like Brazil or manufactured locally in different parts of the world.While the exact manufacturer can be difficult to pinpoint without a brand name, the product's description consistently points to a keratin-based deep repair and smoothing treatment.Here is a summary of the typical characteristics, ingredients, and benefits associated with a mask of this description:Core Benefits and Hair TypeFeatureDescriptionPrimary GoalDeep repair, intense hydration, and frizz reduction.Keratin ActionKeratin protein is used to replenish lost protein in the hair shaft, smoothing the outer cuticle layer for a sleek, shiny, and less frizzy finish.Hair TypeIdeal for dry, damaged, frizzy, or chemically treated hair. It is often used to maintain the results of a professional keratin or straightening treatment."Brown Regular"This phrase sometimes refers to a specific formula strength or a variation without a purple or silver tint (which is used for blonde/silver hair). In some contexts, particularly for the brand iHair Keratin, the "Brown" mask is a color-depositing mask designed to revive or enhance brown hair color.