L'Oréal Paris Olia Hair Colour

L'Oréal Paris Olia is a ammonia-free permanent hair colorant powered by an oil-delivery system. The brand is part of the extensive portfolio of L'Oréal, a French beauty giant founded in the early 20th century. The product is known for its high oil concentration which helps to propel pigments deep into the hair fiber without the need for ammonia.

While L'Oréal is a French company, their products are manufactured in various facilities globally to serve different regional markets. Large-scale production sites exist in Europe, North America, and Asia. Ownership remains under the L'Oréal Group, which has evolved from a small hair dye company into the world's largest cosmetics group, maintaining its headquarters in Clichy, France.