When results are seen depends on the condition of the stretch mark/scar tissue. If the scar is quite fresh, still with blood within the tissue, results can often be seen from the first treatment week, and they continue to advance quickly.
The longer a scar is left untreated greatly affects both the speed of response to the treatment and the result that can be ultimately achieved. Old, white scars may respond. Typically after treatments, although the height of the old, white scar may not change, the width of the scar can reduce and a more normal colour can come back to the tissue, making the scar less noticable.

The stretch marks here had been partly caused by a cortisal cream which had thinned the skin; they were blush and painful. These pictures were taken before and after just a single Eporex Stretch Mark Reduction treatment. After just one treatment there had been a huge improvement and the pain had subsided.