Had first ever aesthetic procedure, this was with an aesthetic doctor. Agreed CO2 fractional laser was way to go for minor old acne scarring and early signs of aging. Tx details: fractional laser e720j, single, 3x density, 0.8mm AND KTP532nm Question: this has left me with terrible hyperpigmentation in the shape of the stamp on cheeks and jaw line. Worse in areas which were super sore during procedure. What are your thoughts on choice of fractional CO2 laser settings? KTP seems to be erbium?!