Here’s a quick explainer on Benzoyl Peroxide.

Benzoyl Peroxide is a common ingredient used to treat acne. It’s generally safe and effective for all skin types, but some individuals may experience a negative reaction to Benzoyl Peroxide products, which can include redness, irritation, itching, or stinging. If you have a known sensitivity to Benzoyl Peroxide, we’ll recommend that you try our Sensitive Skin Acne System.

Here’s a breakout breakdown. Read on and you’ll be able to pick the types of acne that show up on your skin.

Blackheads: Do your pores get filled with hard, black gunk? We call these bad boys open comedones. Or, in everyday speak, blackheads.

Whiteheads: Got tiny little bumps hanging out right under the surface of your skin? These are called closed comedones. They’re another type of clogged pore that most people call whiteheads.

Papules: These are little pimples that are red, inflamed, and irritated, but they don’t have puss inside them. Even though they’re a pain, they typically don’t cause any pain.

Pustules: These pimples are also red, inflamed, and irritated. But these ones are gushers. Whether that puss is white or yellow, it makes its presence known. Hence the name, pustule.

Cystic Acne: Do your pimples practically scream when you touch them? Do they creep up from deep, deep inside your skin? Are they humungous, and filled with puss? You’ve got cystic breakouts.

Nodules: Did you answer yes to the questions about cystic acne? Are your pimples also super hard and seriously painful? These stubborn breakouts are called nodules.

Keratosis pilaris is a common, yet harmless skin condition, characterized by small, rough bumps on the surface of the skin,

The bumps can look almost like tiny pimples and feel rough or dry — they may also be itchy and uncomfortable. These bumps tend to be lighter or redder on fair skin and darker on more pigmented skin, but can appear to be white, red, pink, light purple, brown, or black depending on the person’s skin tone.

The condition most commonly appears on the upper arms, back, thighs, butt, or face and can appear as just a few spots or it can overtake an entire area, looking almost like a rash.