If you're skeptical, start with a DIY facial workout approach. Theron has outlined some at-home exercises:

· Chin Press Up: Make a V with your hand and rest your chin in the V. Pull your lips over your top teeth hold for five seconds and repeat (do this 10 times). Move the hand to either side of the chin with the length of your fingers covering your ears and make the sound "eeeee" with your mouth 10 times. Put your ring fingers inside your mouth on either side, pull the skin to the side and use your jaw muscles to bring the fingers back in to touch your teeth 10 times.

· Fish Pose: Hold your collarbone with your hands on either side, tilt your head back slowly until you feel a stretch and then start opening and closing your mouth like a fish making circles as if you were saying "ouch." Still holding your hands on your collarbone, look ahead and say "eeeeeeek" 10 times.

· Place index finger on chin, lift chin up towards the ceiling, open your mouth while covering teeth with lips, open and close mouth for 12 reps.

· For horizontal forehead lines, place both hands on the forehead facing towards each other and place firm pressure while spreading fingers out between the eyebrows and hairline. Repeat 10 times.

Image via @face_gym