Burmese raw hair is unprocessed hair, which means no chemicals. Comes natural curly or natural straight. Cuticles intact so the hair actually gets better with time. No tangling, very minimal shedding. Best of all can be bleached to 613 and can last up to 5 years with the proper maintenance. Any coloring or bleaching I recommend having it done by a professional. Raw hair is the most expensive hair on the market.