Baena extra-virgin olive oil, vinegar from D.

WSJ: Salmorejo the Way Mama Makes It

People have been using substances like olive oil, yogurt, vinegar, honey and aloe for skin care for ages, Day said, and now there are scientific studies that explain why they work.

CNN: Do's and don'ts for DIY skin care

My family adopted this substitution: a bowl of olive oil with a splash of balsamic vinegar for dipping bread or veggies.

CNN: A family's guide to healthy food substitutes