• BLAKE LIVELY photo | Blake Lively

Credit: Laura Cavanaugh/FilmMagic; Inset: Getty

Published: Tuesday April 14, 2015 18:00 PM EDT

2015

BLAKE LIVELY

Mayonnaise, it doesn't just make burgers delicious – it's also the recipe to the new mom's shiny locks. "My mom taught me this really great beauty tip," she told Byrdie. "She used to put oil or mayonnaise on the bottom half of her hair before she would shower. That way, when she would shampoo, the soap wouldn't strip the bottom of the hair and dry it out, making it brittle."