Last night, “Extra’s” Renee Bargh caught up with the cast of “Fuller House” at the Los Angeles premiere, where they dished on their secret to not aging. Though John Stamos, Bob Saget, and Dave Coulier were first seen on “Full House” back in the '90s, they look like they haven’t aged a day! Stamos joked, “I have a potion I made for everybody.” “Fuller House” starts streaming on Netflix on February 27.