While benzoyl peroxide and salicylic acid are tried and true acne fighters, tea tree oil is a natural alternative that gives them a run for their money. The essential oil is known for its anti-inflammatory properties—two major concerns for those with acne-prone skin.

However, like all skincare products, you need to make sure it’s the right fit for your complexion. Before adding it into your regimen, there are a few things to understand about this blemish buster. Below, dermatologists weigh in on your biggest questions about tea tree oil, so you can send those pimples packing for good.

Tea tree oil is effective because it is naturally antibacterial.

Derived from Melaleuca alternifolia, a small tree native to Australia, tea tree oil contains terpinene-4-ol. “This property has antibacterial and anti-yeast properties,” explains Marisa Garshick, MD, a New York-based dermatologist. “It helps with acne because the oil has been found to have antimicrobial effects against Cutibacterium acnes, a type of bacteria that is found in healthy normal skin, but one that’s also known to be involved in the formation of acne.” This is why tea tree oil has been shown to reduce acne, especially inflamed red bumps, and according to Dr. Garshick, there have also been studies which suggest that tea tree oil is beneficial in clearing up non-inflammatory blackheads and whiteheads, too. “Research also shows tea tree oil triggers the activity of white blood cells, which are key in the healing process,” adds Deanne Robinson, MD, a Connecticut-based dermatologist.

One easy way to incorporate tea tree oil is using products containing it.

If you’re interested in trying out tea tree oil, a good way to incorporate it into your routine is by choosing a product that already has it in its formulation. Not only does this lower the chance of a DIY disaster, but your skin will reap other benefits too. “Some products will formulate tea tree oil with other complimentary ingredients that gently exfoliate the skin to help eliminate dead skin cells and unclog the pores—a common problem for those with acne,” furthers Dr. Garshick.

Here are five medicine cabinet must-haves: