I use Ouai shampoo and conditioner by Jen Atkin.

Tom Ford. I also really like the Charlotte Tilbury lip liners called Lip Cheat. Sometimes I wear that solo with a little lip balm.

I love a nude lipstick that’s as close as possible to the natural shade of my lip. They’re hard to find. I like the ones by Tom Ford.

If I’m traveling, I really love Shiseido Benefiance masks for my eyes. I do it on the plane. I don’t care if I look like a crazy person.

I use the custom blood moisturizer and some of her serums, like her Glow Drops. Essentially they make you glowy, but they also give you this really nice natural lift.

I also really like the Complexion Rescue because it has a little bit of colour but it’s not too heavy on the skin. I finish with lip balm. Boom.

My signature look is pretty simple but I can’t live without a good highlighter so I love BarePro Glow.

You have $20 and free roam of a drugstore. What do you buy? HB: Oh my gosh, I'm a nightmare in the drugstore. I'll literally buy anything...tissues, Chapstick, Aquaphor. I love Aquaphor. It's such a thing for me. And I'm always buying gum. I usually like Dentyne Ice.

What's your number-one rule for foundation? Hailey Bieber: Less is more. But I don't even have to consider that when I use the Complexion Rescue Hydrating Foundation Stick because it's so lightweight and easy to use. If you want to put more on, you can, and it gives great coverage. I go between putting it on with my fingers when I need less and a brush when I need more.