The former Sister Sister star headed to her car after a workout session at Studio City in Los Angeles and ditched the foundation in favour of a fresh face.
She certainly appeared to mean serious business about her fitness routine too, since she was dressed head-to-toe in gym gear, including a pair of pink running trainers and some black cropped leggings.
Tia, 35, also opted to go completely natural in the hair department, shunning her blonde extensions and weave for her own very short, dark style, which she hid under a black bandana.
The mother-of-one has been looking glamorous at several showbiz appearances recently, where she has been seen sporting a sleek blonde bob cut.
Earlier this month, Tia attended the Teen Choice Awards with twin sister Tamera and younger brother Tahj, where she stunned in a gorgeous purple ensemble, smoky eye make-up and above shoulder length locks.
However, we have to admit that these no make-up pictures prove that Tia does have enviably clear skin. And clearly those gym sessions are paying off because her figure looked fab on the Teen Choice Awards blue carpet!
Tia - who is married to actor Cory Hardrict - has previously revealed that she is working hard to stay in shape following the birth of her son Cree Taylor in 2011.
And she isn't the only one in her family committed to her workouts, as twin Tamera has also been exercising regularly to shed her post pregnancy pounds after having her son Aden last November.
Do you wear make-up to the gym? Let us know below, as the best comment each week wins £50!