A 102-year-old shares her simple, science-backed skincare secrets — and they don't include antiaging creams

Rancho La Puerta

From looking at her, you wouldn't guess Deborah Szekely is 102 years old. Three days a week, the centenarian works at the health resort in Baja California, Mexico, which she founded with her husband in 1940 — and she doesn't plan to stop until nature tells her to, she told CNBC Make It earlier this year.