Tamanu & Tea Tree Oil Face Serum. Oil Face Serum for oily and problematic skin. £12.00 Out of stock. Purifying oil face serum specially formulated for oily and problematic skin with impurities and imperfections such as acne, scars and blackheads. Use once daily, preferably a night time, together with your cream or solo. Vegan friendly & cruelty free! Carefully made using the highest quality, natural and organic ingredients. NO paraffin, NO parabens, NO colourants, NO synthetic fragrances!