Having had a KeraStraight treatment years ago, I can attest that Fabriq has evolved dramatically — and is far superior to its predecessor. First, it doesn’t completely iron out my natural waves and curls. When I let my hair air-dry, my natural wave pattern remains, allowing me to easily define it with a sea salt spray or mousse if I choose. Second, it leaves no strange odor. With KeraStraight, my hair would emit an unpleasant metallic scent when wet or after a sweaty workout, but even with a nose as acute as a bloodhound’s, I can’t smell anything untoward. Finally — and with the help of a few additional products — my hair holds styles better, like waves or curls.