fountain of youth

Noun

idiomatic

(idiomatic) Anything reputed to have the power to restore health and vitality or to restore a youthful appearance.

Japanese Meaning

若さの泉：健康や活力、若々しい外見を取り戻すとされる伝説上の源泉や現象。 / 不老不死の象徴：永遠の若さや若返りの効果を持つものとして比喩的に用いられる。

Some people buy expensive creams hoping they will be a fountain of youth, but healthy habits matter more.

高価なクリームを買って、それが若返りの泉になることを期待する人もいるが、健康的な習慣の方がずっと重要だ。

Sense（1）

(idiomatic) Anything reputed to have the power to restore health and vitality or to restore a youthful appearance.

Just watching the advertisement, you'd think the face cream was a fountain of youth.

fountains of youth

（ plural ）