Here are some names I came up with:

• Verna: Born in spring. Spring is considered as season of youth and beauty, new beginnings and delight.

• Telomera / Telomyra / Telomyrrh: Derived from Telomerase - An enzyme which certain studies show a possible use in regenerative medicine.

• Ambrosia - Greek meaning Nectar of the gods, that confers the gods with longevity or immortality.

• Siddhi: Sanskrit meaning a state of attainment through yoga that gives you many powers including immortality.

• Amrit - Sanskrit, literally meaning elixir of life that grants you immortality.

• Kausar - Arabic meaning lake of paradise, from "Chashma-i-Kausar" which means fountain of bounty.