O&M Seven Day Miracle Moisture Mask You can leave this O&M Seven Day Miracle Moisture Mask ($36) in for two minutes for it to start working, or you can even sleep in it overnight. The organic coconut and macadamia oils (plus bonus shea butter) offer intense hydration to processed hair either way. Image Source: sephora.com O&M Seven Day Miracle Moisture Mask $36 from sephora.com Buy Now