Abstract: An at least two-layer label for opening and closing flexible packages provided with a pre-cut opening closable with a cover, having a base label provided with a first adhesive layer having a weakened cut-off area which is placed over the pre-cut opening, and a covering label whose lower part is provided with a second adhesive layer by which it is adhered to the base label; the adhesive strength of the base label to the package being greater than the adhesive strength of the covering label to the base label.