By Bronwyn Barnes
Updated January 28, 2014 at 10:49 PM EST
Kristen Stewart
Credit: Danny Moloshok/Invision/AP

It’s safe to assume that Kristen Stewart would rather get a full body wax than talk about her beauty must-haves.

But the actress does exactly that in a Q&A published on New York magazine’s fashion blog The Cut.

Considering the fact that half of the questions posed by the writer have to do with the sense of smell — “How do you use scent as part of your acting process?” “What has surprised you about scent?” — one can assume that Stewart sat for the interview as part of her duties as the celebrity face of Balenciaga’s Florabotanica and Rosabotanica perfumes.

Read on to find out what’s on Stewart’s list of banned beauty products, how often she washes her hair, and why she always tries to look like she just rolled out of bed. Before we find out what we really want to know — What kind of shampoo does Kristen Stewart use?! — we learn why Stewart refuses to use certain beauty products.

“Whenever I encounter a product that I’ve used on a previous movie, it will take me right back. [Snaps.] Sometimes there will be things I can’t use, even though it might work for a beauty regimen or something that works for the character. I’ll literally have to find another product to use,” she explains. Case in point: dry shampoo. “I used it on The Runaways, and Joan uses that as well. I couldn’t use it anymore. I was just too reminiscent.”

But not all smells are bad smells.

“My favorite flower is a gardenia. My grandma had a big gardenia bush. And gardenias aren’t that common. When you find them, it’s always like, Oh, nice. And it’s my favorite flower now too, because of that.” But just because she associates her grandmother with a lovely sense memory, that doesn’t mean she wants to smell like her grandmother. “I was never really a fan of the idea of putting on some synthetic scent…. Some perfumes just smell awful. They smell like your grandmother.”

Once Stewart has addressed all things olfactory, the writer asks her to outline her hair and skin care regimen.

Having just taken out the cornrows she was sporting at Sundance, the actress admits that most of the time her only concern is keeping her hair out of her face. She Likes Kerastase, abhors hotel shampoo, and gets a lot of free hair products. In addition to being a die-hard Proactiv user, Stewart’s other secret weapon is H2O. “I drink a lot of water. Like, if you don’t drink water, you look awful. If you do, that’s a huge part of my ‘beauty’ regimen, I guess,” she explains.

Finally, Stewart sums up her beauty aesthetic. “I’m always striving to get to the point where I look like I’ve woken up in the last hour…. I just like it when people look like they’re not trying. And the only way to do that is by not trying.”