Doctor haven`t use the sample yet... Ans back doc question whether product is comedogenic and what kind of procedure suitable to be used.. Share with doctor can try on after laser treatment, excision and acne scar mark... Doctor say so far he don`t encounter bad scar.. So don`t have the chance to use yet... And he very seldom prescribe dermatix as well.... He do excision usually very small wound where they can heal well which is not required scar cream... Ask to give him another 2months time to collect the feedback from his side