The invention relates to a fluid composition containing at least a polymer, a plasticiser, a volatile solvent, and a very small amount of an organic sun filter in the order of between 0.5 and 2.2 wt.-% in relation to the total weight of the composition. The composition, which is intended to be applied to the skin, can be used to treat scars. In addition, the composition advantageously contains a derivative of dibenzoylmethane and a cinnamate derivative.