A disposable material, pre-cut to various shapes or able to be cut or shapedat the time ofuse, to protect non-target tissue, excluding the eyes, during treatment of theskin is disclosed.The disposable material comprises a flexible material comprising at least onefirst layercomprising a material that mitigates the transmission of electromagneticradiation from anradiation source； a backing layer that is located on top of the first layerand is configured todiffusively reflect the electromagnetic radiation without direct specularreflection； and anadhesive for removably attaching the disposable material to the skin. There isalso disclosed amethod of protecting non-target tissue, excluding the eyes, by applying thedisclosed material toa desired location.
