A keratin straightening treatment, such as the Brazilian Blowout,  is done in the salon and uses chemicals to straighten the hair for up to six months. Keratin-infused products, such as shampoo or conditioner that you buy at the store, contain keratin protein and are safe to use daily as they don’t contain the same chemicals, such as formaldehyde, that keratin straightening treatments do. Keratin-infused products have more of a temporary effect on the hair, versus the long-term straightening effects of a treatment at the salon.  It is important, however, to always read the labels to ensure that formaldehyde (or any of the alternative names listed above) aren’t in the keratin-infused products.