There is no easy way or one way to answer this question. With the Fraxel re:store (which is the less invasive laser treatment) you can treat acne scars, sun spots and skin discoloration.
However, since this treatment does not have much downtime (slightly pink for a day or two), the results from one treatment are not that great. It usually requires 3-5 treatments to see lasting and very noticeable results.
What I mean by that is that acne pits improve but not go away, hyperpigmentation spots may completely go away and your skin texture and complexion is very improved. It is not great for skin tightening. Remember, that your skin type as well as how bad your starts out, plays a role in how good your results can be.
With the Fraxel re:pair (the more invasive one), you treat similar conditions except that it also significantly improves skin tightening. This is a one time (sometimes two times) treatment that can improve your skin by 50-70%.
However, there is a week of downtime and then another week where you look like you have gotten a bit too much sun. Acne pits really improve but not go away, spots improve by 70% and the skin is smoother and tighter in one treatment.
I hope this helps.
