fountain of youth
Anything reputed or promising to restore one's youth, vitality, or health, or at least the appearance thereof. At the age of 60, your grandmother looks fantastic! She must have discovered the fountain of youth. The way they advertise these skincare products makes you think each one is the fountain of youth or something. I'm 80 years old, I have wrinkles, and I really don't care at this point. Who needs the fountain of youth?
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