Rumex Occidentalis Extract Good Antioxidante Envejecimiento Manchas en la piel Tono desigual Rumex Occidentalis Extract at a glance Flowering plant found throughout western North America Shows promising efficacy on fading the look of dark spots and patchy discoloration Very good source of antioxidants Offers soothing benefits Rumex Occidentalis Extract description _Rumex occidentalis_ extract is a rust-colored flowering plant also known as western dock. Native to the western portion of North America, its primary reason for use in skin care is due to its ability to reduce the look of hyperpigmentation from UV exposure. At this time, due to a lack of accumulated data, _Rumex occidentalis_ extract can be considered a good supporting ingredient to use alongside more proven discoloration-reducing ingredients such as vitamin C, niacinamide, and tranexamic acid. Another study done in India on 71 people showed combining 2% _Rumex occidentalis_ with 1% dioic acid produced visible skin lightening that bettered that from daily use of SPF 15 sunscreen; however, this study was conducted by a cosmetics company and its results haven’t been substantiated. _Rumex occidentalis_ is a good source of antioxidants, including quercetin and resveratrol, among many others. These allow it to help defend skin from external aggressors as well as provide natural soothing benefits. Recommended usage levels in skin care range from 1–3%.