A nail tip curing composition includes an Extend Gel, an edge-off flat brush, a nail filing device, a plurality of GEL-X tips, a pH Bonder, and a Non-Acidic Gel Primer. The pH Bonder forms a pH Bonder layer on a surface of a fingernail. The Non-Acidic Gel Primer forms a Non-Acidic Gel Prime layer overlapped on the pH Bonder layer. The Extend Gel forms an Extend Gel layer overlapped on the Non-Acidic Gel Prime layer. The GEL-X tip is filed by the nail filing device and the Extend Gel is applied on an underside contact surface of the Gel-X tip by the edge-off flat brush. The underside contact surface of the Gel-X tip is contacted with the Extend Gel layer on the fingernail in such a manner that the Gel-X tip is firmly affixed on the fingernail.一指甲片固化組合包含一延甲膠、一平頭刷、一磨甲裝置、數個GEL-X甲片、一平衡劑、以及一非酸性固定劑。所述平衡劑形成一平衡劑層於一指甲的一表面。所述非酸性固定劑形成一非酸性固定劑層叠加於所述平衡劑層上。所述延甲膠形成一延甲膠層叠加於所述非酸性固定劑層上。所述GEL-X甲片被所述磨甲裝置打磨,並且所述延甲膠被以所述平頭刷塗在所述GEL-X甲片的一下接觸面。所述GEL-X甲片的下接觸面被接觸於所述指甲上的所述延甲膠層,如此則所述GEL-X甲片被牢固地附著於所述指甲。