Complex sentence: Origins is a sister cosmetic firm under the umbrella of the Estée Lauder Companies, sold at Macy's, Dillard's, etc., as well as their standalone stores.
Split into simpler sentences: Origins is a sister cosmetic firm under the umbrella of the Estée Lauder Companies. Origins products are sold at Macy's, Dillard's, etc., as well as their standalone stores.