Keratosis pilaris, otherwise known as "chicken skin", is a bloody annoying skin condition.
It affects approximately 40 per cent of adults and 50 per cent of children worldwide, and it's something I've had for years.
I've always thought that keratosis pilaris (KP) is caused by food intolerances.
As someone who's gluten intolerant but not super strict about it (love a cheeseburger), I assumed that whenever I ate something with gluten in it, the flare-up of bumps on the back of my arms was directly correlated.
But guess what? It isn't.
Watch: Three steps to glowing skin with Leigh Campbell. Post continues after video.
In a recent episode of Mamamia's daily beauty podcast, You Beauty, dermatologist and co-founder of Sydney Skin, Dr Li-Chuen Wong, answered every question about keratosis pilaris, and I took notes for us.
Including what it is, what *actually* causes it, and how to properly treat it, here are all your keratosis pilaris-related questions, answered.
What is keratosis pilaris?
Before we get into the nitty-gritty, let's start with the basics: what actually is KP?
"It's a genetic plugging of the hair follicle with dead skin," Dr Wong said.
So, the roughness you see on your arms, legs, or face is a built-up of keratin - a protein that has dug into your hair follicle causing the chicken skin-like appearance.
The good news is, KP is pretty harmless.
"It [can be] really distressing if it's widespread, but it is completely harmless and it's definitely not contagious," Dr Wong said.
"If it doesn't bother you, if you can't see it, [or] feel it, you don't need to treat it."