We’ve gotten to know a lot more about Kylie Jenner over the course of her Keeping Up With the Kardashians spinoff, Life of Kylie. For instance, she’s a smart AF businesswoman, she kinda hates being famous, and on the Sunday, Sept. 10, episode of LOK, it was confirmed that the 20-year-old cosmetics mogul has a heart of gold.

As fans saw on Sunday night, Selfie Queen/Met Gala Glamazon Kylie took a break to shift her focus from fame to philanthropy. ICYMI, in 2016, Kylie teamed up with Smile Train, a non-profit organization that provides financial help to kids from developing countries who were born with cleft lips. She created a new lip kit called Smile, a gorgeous pink hue, and donated 100 percent of the net proceeds to Smile Train.

Cameras followed the youngest of the Kardashian-Jenner clan to Lima, Peru, where she visited children who were recovering from cleft lip surgeries made possible by her financial contributions. All in all, Kylie was able to pay for 1,800 surgeries.

During a recent interview, the E! personality opened up about her emotional trip to South America and revealed why it was so important for her to give back. “When I visited Peru, I had the opportunity to see firsthand the amazing work that Smile Train does and witnessed my first cleft repair surgery,” she told People. “Seeing a child’s new smile for the first time after their surgery was a life-changing experience, and I am forever grateful.”

Kylie took to Instagram on Sunday afternoon to post a photo of herself and Mia, one of the young patients she met during her time in Lima. “It was amazing to see up close the lives that have changed from my @kyliecosmetics donation,” she wrote alongside the snap. “And I’m excited to continue our relationship and help more people around the world smile!”

You can visit smiletrain.org/kylie to learn more about how you can get involved. The Season 1 finale of Life of Kylie airs on E! Sunday, Sept. 17, at 9 p.m. EST.