Alkmene My Tea Tree Oil Anti Blemish Stick has the highly effective, soothing formula with tea tree oil and zinc PCA is proven to reduce blemishes, pimples, blackheads and redness in just 2 hours. For a clear, refined complexion down to the pores. Skin compatibility dermatologically confirmed. Not comedogenic. It has a 100% pure, natural, Australian tea tree oil in pharmaceutical quality that is known for its antibacterial, anti-inflammatory and antiseptic effect. Thanks to its antibacterial and anti-inflammatory effect, tea tree oil is known as a problem solver for blemished skin. Tea tree oil counteracts the bacteria, causing the inflammation to subside.