Kylie Jenner has been pretty comfortable with showing off her body on social media. It wasn't any different when she posted a mirror selfie of herself rocking a white tank top and matching men's underwear on Friday, Feb. 24. In the photo, the Kylie Cosmetics entrepreneur shows off her incredibly taut tummy and ample curves that have been the center of plastic surgery rumors. This photo comes shortly after she promoted Fit Tea Wraps on Instagram. Some have questioned the legitimacy of the products.

Kylie Jenner teases fans with new mirror selfie on Instagram

The 19-year-old took to Instagram on Friday to share her latest sexy selfie. In the photo, Kylie Jenner is seen rocking a pair of white boy shorts and a tight tank top that's pulled up to show off her flat stomach and curves. The "Keeping Up With the Kardashians" star is also seen rocking her new bangs. She posted the photo to her account without a caption. Though the photo was typically sexy in style, the makeup mogul took advantage of the moment by showing off her new hairstyle.

In the photo, fans could see the reality star complementing her signature dark raven hair with long red nails as she looks at herself in the camera. Earlier that day, Kylie Jenner shook up her fans when she debuted six new shades of her already popular highlighters: Chocolate Cherry (rose), Strawberry Shortcake (peony pink), Cotton Candy Cream (blush), Salted Caramel (sand), French Vanilla (cream), and Banana Split (gold).

She took to both Snapchat and Instagram to share swatches of the shades and to tell her millions of fans how to wear them.

Reality star promotes Fit Tea Wraps on social media

Earlier this week on Monday, Feb. 20, the girlfriend of Tyga posted another sexy photo that showed herself advertising a Fit Tea Wrap. She took to Instagram to post a previous mirror selfie in which she's seen wearing a white camisole and white underwear along with the wrap on her stomach.

She told her fans that the wraps have been keeping her stomach flat before the summertime.

Fit Tea Wraps not all that its cracked up to be

Doctors have already slammed the Fit Tea Wraps, claiming the wraps have no effect on the body. Dr. Sam Hay told that the all-natural ingredients are barely absorbed into the skin and even less of it is absorbed into the fat.

There is no scientific evidence to back up Fit Tea's claims. He also slammed the starlet for tricking her 86 million Instagram followers into buying the weight loss product.

According to Dr. Hay, the best way to get a lean stomach would be through diet and exercise. The best way to lose weight and to fight off cellulite would be through walking, running, and weight training. Losing weight is more about eating less, eating healthy, and exercising more.