PROBLEM TO BE SOLVED: To obtain a curable gel nail composition which easily wets and spreads on a nail surface, has excellent adhesion between a nail and a cured coating film, and can form a durable gel nail, To provide a method for forming a gel nail that is easy to wet and spread on the nail surface, has excellent adhesion between the nail and the cured coating film, and has a long-lasting gel nail. The following configuration is adopted. (1) Curable gel nail composition having a water contact angle of the cured coating film of 77 ° or more and a viscosity of 35 Pa · s or less (2) Gel nail base layer having a water contact angle of the cured coating film of 77 ° or more (3) Method of providing gel nails on the nails in which the water contact angle of the cured coating film on the nails is 77 ° or more [Selection diagram] None【課題】爪表面に対し濡れ広がりやすく、爪と硬化塗膜との密着性に優れ、持ちのよいジェルネイルを構成することのできる硬化性ジェルネイル組成物を得ること、また、爪の上にジェルネイルを設ける方法において、爪表面に対し濡れ広がりやすく、爪と硬化塗膜との密着性に優れ、持ちのよいジェルネイルを構成するための方法を得ること。【解決手段】以下の構成とする。（１） 硬化塗膜の水接触角が７７°以上であり、粘度が３５Ｐａ・ｓ以下である硬化性ジェルネイル組成物（２） 硬化塗膜の水接触角が７７°以上のジェルネイルベース層（３） 爪の上に設けられる硬化塗膜の水接触角を７７°以上とする、爪の上にジェルネイルを設ける方法【選択図】なし
