The Ordinary EUK 134 0.1% is a high-potency antioxidant serum that mimics the natural protective antioxidants in the skin. This innovative formula uses EUK 134 at a powerful 0.1% concentration, offering one of the most concentrated antioxidant treatments available. EUK 134 helps protect the skin from visible damage caused by environmental stressors, such as pollution and UV rays, and supports a brighter complexion. As an oil-like serum, EUK 134™ actively regenerates itself, continually protecting the skin and brightening its appearance. This serum is perfect for anyone looking to add an extra layer of protection and antioxidant support to their skincare routine.