A method of treating a skin tissue area, in particular non-invasively treating the skin tissue area (1), is provided. The skin tissue area has a dermis layer area (3), an epidermis layer area (5) providing a skin surface (7) and covering the dermis layer area. The method comprises: a first step of causing one or more dermal lesions (11) localized in the dermis layer area while avoiding epidermal damage, and a second step of causing, separately from causing said plurality of dermal lesions, a plurality of epidermal lesions (15) localized in the epidermis layer area. An apparatus is also provided.