Your first line of defence against breakouts. Pimple Patch Micro Dart has been formulated to treat and protect early-stage, under-the-skin spots (you know the ones), our Pimple Patches are made from 173 microscopic darts, which gently dissolve salicylic acid, tea tree and cica into the problem area. This blemish-busting trio of ingredients works to reduce pimple-causing bacteria and calm inflammation, while the shield itself protects and promotes healing - so you can get on with your good skin day. Hero Ingredients. Salicylic Acid: A beta-hydroxy acid (BHA) that dissolves oil and removes dead skin. Tea Tree: An extract of the Melaleuca Alternifolia tree with known antibacterial properties. Cica: A leafy green herb, also known as Centella Asiatica, is used to soothe and calm the skin.