So THAT's how she stays so young! Real Housewife Lisa Rinna shares a photo from her stem cell facial in LA

Lisa Rinna of The Real Housewives of Beverly Hills has spoken at length about her regular workout regimen. 

But it looks like the 51-year-old star has found another way to maintain a youthful glow: stem cell facials.

The actress posted an Instagram photo on Tuesday wearing a mask and with her hair pulled back into a hair net for the facial.

Putting in the work: Lisa Rinna posted this photo on Tuesday depicting her cytocell facial

Lisa shared the Instagram photo in which she wears a mask for one of Kate Somerville's facial treatments.

She captioned the picture: 'A girls gotta do what a girls gotta do. Time for my @katesomerville cytocell facial. Love it! #RHOBH'

According to the clinic's website, the cytocell facial uses micro stem cell technology to counteract photo aging and leave skin looking more youthful. 

Laid-back: Lisa was later seen out in West Hollywood sporting a casual look of light wash blue jeans and rain boots

The TV personality was spotted later in the day, braving the rain by taking a stroll through West Hollywood.

Lisa sported a laid-back look, wearing a black V-neck T-shirt underneath a fur-lined black leather jacket.

She also wore light wash blue jeans, which she had tucked into a pair of Hunter rain boots, due to the inclement weather.

Braving the rain: The TV personality was equipped to deal with the inclement weather in Hunter rain boots

Lisa also carried a black and white animal print umbrella, and a small black leather purse while she was out in West Hollywood.

The reality star covered her brunette locks with a black baseball cap emblazoned with the logo for Eboost.

Eboost is a natural energy drink backed by fellow housewife Kristen Taekman, of the Real Housewives of New York, and her husband Josh.  

Out on the town: It seemed Lisa wanted to show off her youthful new look on Tuesday by taking a walk around West Hollywood following her stem cell facial

Supportive: Lisa wore a black baseball cap bearing the logo for Eboost, which is a company backed by fellow housewife star Kristen Taekman (of Real Housewives of New York) and her husband Josh