Claim 1: a method for forming a Film on a Human integument Cosmetics comprising the Human integument: apply a Cosmetic composition which has a cosmetically acceptable vehicle, Optionally, one or more Dyes, a film-forming Polymer and Ph D Ependiente,Poly (methacrylic acid) - CO Methyl methacrylate) with respect to a methacrylic acid methyl methacrylate from about 1:1 to about 1: 2, an Acid value of from about 150 to about 350 mg KOH / g, and a Weight average molar mass of between. Approximately 100000 and approximately 150.000 g / mol, where the Cosmetic composition is capable of forming an adherent Film on the integument is substantially resistant to removal with water at a First pH, water soluble or dispersible but quickly to a Second pH greater than Said First pH, with the condition d And the polymer film former is not in the form of a microcapsule.Claim 9: a method according to claim 1, further comprising contacting Said Cosmetic composition with soap and Water to reach the PH of Human integument from the first to the second pH pH, therefore, removing the Cosmetic Composition of the integ Increase Human.Claim 10: a method according to claim 1, wherein Said Cosmetic composition is selected from the group consisting of: Foundation, Eye Shadow, Skin Cream, Skin gel, Lipstick, Mascara, and Lip Gloss.Claim 1: a Cosmetic composition comprising a cosmetically acceptable vehicle, Optionally, one or more Dyes, a film-forming Polymer and PH dependent Poly (methacrylic acid) - CO Methyl methacrylate) with a relationship between methacrylic acid and met Methyl acrylate approximately 1: 1 to 1: 2An Acid value of from about 150 to about 350 mg KOH / g, and a Weight average molar mass of between approximately 100 and 150.000 g / mol, where the polymer is capable of forming an adherent Film on a Human integument which is substantially resistant to removal with water at a First pH, water soluble or dispersible but quickly to a Second higher pH the pH, with the condition that