The keratin one absolutely did not straighten my curls. Instead, they shrunk up and perked up like they do with IAGirl's pt. It was almost pt time the first time I used it, and the ends of my hair were almost at bra strap length. First use brought the ends up to just below armpit length. It left my longer layer spiralling at the ends, and gave my shorter layer root curl and volume (something I typically have to work to get). My hair was super soft and shiny too.
CG since 11/2011
2c /3a F /Mii, low porosity

Fall Products /Routine:
Clarifying: Herbal Essences Tealightfully Clean
Low Poo: Renpure Luxurious Argan Oil
CO: Suave Naturals Tropical Coconut or Daily Clarifying, V05 Strawberry or Kiwi Lime
RO /LI:
Tresemme Perfectly (un)Done, Cure Care, V05 Kiwi Lime Squeeze, V05 Strawberry, Renpure Brazilian Keratin (old formula),
Stylers: LALSG, AIF, HETT
PT: IAGirl's as needed