Lori Loughlin is stepping into uncharted territory ... She fully embraced the no-frills look, sporting dark, pulled-back hair, minimal makeup, and a raw, stripped-down appearance in her uniform.

LORI LOUGHLIN I feel very blessed that it came to ... The first day I showed up, my hair had highlights and they said to me, "Listen, we're going to make your hair dark, we're going to take ...