Could we have been looking in all the wrong places this whole time for the fountain of youth? I always imagined it to be hiding in a mystical forest, wrapped in vines, waiting for an adventurer to uncover a magical, iridescent pool. Don’t mean to burst your bubble, but recent studies reveal a much less romantic reality — youth is chillin’ in a bucket o’ apples. Yup. Scientists researched Swiss apples to find out why they last longer than other varieties and have the ability to heal themselves. The answer was in their stem cells. Now beauty companies are using these stem cells to create anti-aging formulas that work to prevent wrinkles and protect and regenerate skin cells. Here are some you’ll want to sink your teeth into. Sonya Dakar Stem Cell Transformer ($195) is the latest face-firming friend on the street (it officially launches in the fall). In addition to the rare green apple stem cells, it’s harvested with organically based goodies such as anti oxidants extracted from red grape skin and hydrating safflower and jojoba oils. Julia Roberts is the face behind Lancôme Définicils Precious Cells High Definition Amplifying Mascara ($29). Swiss apple extract is the focus of the formula, which claims to repair damaged follicles and deeply condition lashes so they are thick and resilient. Stella McCartney’s limited-edition fragrance Sheer Stella ($62) isn’t bogged down with stem cells but its chemistry is ripe with green apple top notes. The heart of Stella’s classic scent is a bouquet of fresh roses. Goldfaden Stem Cell Skin Serum ($75) combines apple stem cells with moisturizing hyaluronic acid and antioxidant-rich red tea and seaweed extract.