Deeply the hair, providing intense. To the hair in just one step. Apply the Progressive Sarah K Rio on dry hair, let it act for approximately 40 to 50 minutes. Dry the hair totally with a dryer and board 7 to 10 times in fine locks. Your hair rebuilt, free of frizz and with intense shine in just one step.01 Sarah K Progressive Without Formalin Brazilian Protein Rio. The item "SarahK sK Professional BLOND LISS RIO Brazilian Protein 1L/33.8fl. Oz USA 0% form" is in sale since Friday, February 5, 2021. This item is in the category "Health & Beauty\Hair Care & Styling\Relaxers & Straightening Prod". The seller is "boualus" and is located in Bedford, Massachusetts. This item can be shipped to United States, Canada, Bermuda, Bolivia, Ecuador, French guiana, Peru, Paraguay, Uruguay.