Tea tree oil is popular with dermatologists and it's easy to see why. The oil is full of a compound called terpinen-4-ol which kills bacteria, even the bacteria that causes acne. Meanwhile, it decreases redness and irritation common with inflammatory conditions. Plus it's moisturising so it doesn't dry your skin the way other acne treatments do.
Tea tree oil is an essential oil sourced from the leaves of Australian Melaleuca trees. It's been used in traditional medicine for centuries due to its healing properties. It's a complex oil made up of over 100 components, some of which have fantastic antimicrobial and anti-inflammatory effects.
Tea tree oil can be a bit of a lifesaver for those with acne or fungal skin conditions. That said, applying it to skin as a pure oil causes irritation so make sure it's diluted or in another product.