That's a great question; I'd like to know as well. When I was relaxed, I used it for rollersets with great success. I found a tad bit underneath my cabinet the other day and moisturized my flat ironed hair with it and I was also wondering how it would work if used to flat iron the hair.
For some creamy products, if you blow dry your hair with them, it will leave the hair sticky. Wondering the same about the Lacio Lacio, or if it will leave flat ironed hair nice and silk like it leaves the rollersets.
BB