Dark Eyes asks…Is it ok to use a regular conditioner as a leave in conditioner? I have long, thick wavy hair that needs to be weighed down. Any recommendations or ingredients to look for? The Left Brain responds: Rinse off and leave-on products are formulated differently for a reason. Almost any oily material will provide [...] Read more: http://thebeautybrains.com/2012/04/06/is-it-okay-to-use-rinse-out-conditioner-as-a-leave-on/