Carbon Theory's U.K lab formulated Facial Purifying Tonic contains premium Tea Tree Oil and Pink Grapefruit Extract in a deep cleansing, pore reducing formulation that minimizes shine and keeps your complexion clear. Tea Tree Oil a natural antiseptic which reduces inflammation and keeps skin clear and healthy. Citric Acid removes dead skin cells, speeds cell turnover and is effective in treating mild acne, pigmentation, clogged pores and dark spots.