The Drying Patch uses a powerful mix of tea tree oil and phytosphingosine as well as niacinamide, vitamin C and hyaluronic acid to specifically combat impurities. The transparent patch is easy to apply and is extremely thin, so it can be easily concealed. It is stuck onto the impurity to be treated and can be worn all day or all night. Each patch contains a special, non-drying, exfoliating and moisturizing formula - a mixture of salicylic acid, niacinamide, vitamin C, tea tree extract, hyaluronic acid (sodium hyaluronate) and phytosphingosine (antimicrobial agent). The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required. The American Low Value Shipment Regulatory Modernization Act is active since March 2016 and increases the duty and tax free value of goods American citiziens could import from other countries by mail from $200 to $800 as well as no formal customs procedures are required