Heidi Montag is best known for being a cast member of several reality shows. She was a breakout star of the MTV series, The Hills. She and her husband, Spencer Pratt, appeared on Celebrity Big Brother together. Montag recently enjoyed a ski trip, and shared a video on Instagram. In it, she went down the slopes in a pink swimsuit. She captioned the post, "#ski #I'll do it." How does she stay so fit? Read on to see 5 ways Heidi Montag stays in shape and the photos that prove they work.

In an interview with Us Weekly, Montag shared her nighttime skin and hair care routine. She says that she loves to use a hair mask. "So first I'm gonna put on the Angel Hair Mask and it's better to put on dry hair. This is so amazing because it has horsetail in it, which is a prehistoric plant. Unbelievable. You can also add a silk powder to like deeply penetrate it and to activate all the ingredients in it. What's also so great with this is it stimulates the scalp. There are some amazing ingredients in here, like rosemary and peppermint that stimulate hair growth."

Montag tells Us Weekly that she also uses a mask on her face at night. "This is the Sacred Immortal Mask, and immortal is known as a very powerful skin healing property. Frankincense has been used throughout ancient cultures for the skin to help reserve it. It really deeply penetrates, and it just feels so good. Smells so good. It is almost like a sacred moment, a ceremony just enjoy it. Feel this moment. It's been a long day. I'm sure for anyone using this, it's been a long day. Just enjoy it. Celebrate yourself, celebrate your skin."

One of Montag's biggest beauty secrets is removing her makeup each night. "I'm going to use this Fumescent Pratt Daddy makeup remover," she told Us Weekly. "So, what's so great about this is that it is oil-based, but actually doesn't leave your skin feeling oily, which I thought it would. It contains antiseptic and toning properties. So that's great because it doesn't destroy the skin and damage your base like conventional makeup removers do when they remove the makeup off your skin."

Montag makes sure to keep her skin hydrated. "This is my Eternal Empress Hydrating Night Butter which is my face lotion I use nightly," she told Us Weekly. "Camellia [the Japanese night blooming flower) and frankincense, which are in here help to stop wrinkles, to slow it down the lines. This actually has pearl powder in it too so it gives you that extra shine. And bees wax is amazing because it's antiseptic and it also helps the absorption to slowly go in through the night."

Montag has a busy life between her job and her family. For this reason, she has to find a work-life balance. "I don't want to compromise time with my son," she told Paper Magazine. "So I definitely try to balance. It's different this time around, though. There's a different production company involved, and I think MTV is in an exciting new place. So it's gonna be a similar Hills that everyone loved, but a different show; we're all wiser now."