How Long Can Microdermabrasion Results Last?

Microdermabrasion is only supposed to remove the epidermis. However most scarring from acne occurs in the dermis. Therefore technically it will have little if any permanent effect. True dermabrasion is performed into the dermis which can have long term and permanent effects but involves substantially more risks and costs.

Microdermabrasion and peels can help mild scars. Peels are good for acne. First, treat your acne then move on to treating the scars. Results from both can be long lasting or short term, depending on your but lifestyle habits and your skin's makeup.  

My personal preference for the treatment of depressed, broad-based acne scarring is Injectable Fillers. Ice-pick scars, and enlarged pores do not respond well to Fillers.
I've attached a link to Acne Scarring photos for your perusal.
I hope this is helpful for you. 

Microdermabrasion and peels can help mild scars. Peels are good for acne. First, treat your acne then move on to treating the scars. Results from both can be long lasting or short term, depending on your but lifestyle habits and your skin's makeup.Maintenance sessions are important for any treatment as our skin also keeps regenerating every 28 days.

Thank you for your question! Lasting effects are dependent on proper skin care.  Additional treatments will renew your youthful appearance.  A series of six treatments over a few months is recommended for best results, followed by regular maintenance treatments. However everyone is different and response to cosmetic treatments can vary from person to person. Best of luck!

Lasting effects are dependent on proper skin care. Additional treatments will renew your youthful appearance.  A series of six treatments over a few months is recommended for best results, followed by regular maintenance treatments. However everyone is different and response to cosmetic treatments can vary from person to person.

Everyone is different and response
to cosmetic treatments can vary from person to person. Improvements to
your skin can be seen immediately or weeks after treatment. Improvement may be
gradual. Treatments are provided in multiple sessions, generally scheduled 2 to
4 weeks apart, with each session usually taking less than 30 minutes. The
number of treatments needed depends on the state of your skin, as determined by
your physician. I would recommend that you make an appointment for a
consultation with a board certified dermatologist.

Microdermabrasion will NOT significantly improve EITHER your acne or its scarring. If you want a return on your $600 dollars, do NOT spend it on this treatment.
Microdermabrasion involves sanding off the very superficial surface of the skin (the Epidermis). The acne process takes place in the deep dermis and the scars reach all the way down there as well. As such, your skin may feel smoother for a few days but it will NOT materially change your condition for that you may want to try other modalities (such as the Sciton BBL).
Good Luck.

The acne scars can be helped with multiple treatments yes microdermabrasion can help facial/peels help and most invasive is micronedeling is the best in conjunction with daily use of creams

There are basically three types of scars due to the ravages of acne. They are: ice pick scars, rolling scars, and boxcar scars. Each of these involve the dermis, the icepick scars generally being the deepest.
Note these are all dermal scars which makes them non-amenable to treatment to microdermabrasio. Microdermabrasion, even at its most aggressive, can only affect the very upper dermis.
For ice pick scars, one can use punch excision ( using a punch biopsy) for the smaller ones and punch grafts for the larger, the difference being that in the graft version a small piece of a patient's skin is placed on top of the punch. Trichloracetic acid at 30-40 per cent can also be used in a very simple and inexpensive method.
Boxcar scars can be treated with punch elevation technique in which the scar is torn away from the underlying fat tissue and then elevated and closed. Filler injections are also effective for this type of scar.
Fillers can also be used for the rolling variety of scar. As far as which filler is best this would depend on the choice of the dermatologist or plastic surgeon who is being called upon. My preference is collagen, since I have been using this filler for acne scars for a long time. Others may prefer a hyaluronic acid filler, Sculptra or Radiesse. A technique termed subcision is also employed by those who have expertise in this modality.
Finally, if you scarring is diffuse and severe there are a host of worthy treatments. The gold standard remains ablative laser resurfacing. However, this has a high complication rate. In the past few years, fractionated laser ( Fraxel, Pixel etc.) have been developed which has made the procedure, although somewhat less effective, safer.
Dermabrasion is still used, but less often than it was 20 years ago. Many practitioners are reluctant to use dermabrasion for the same reasons as ablative laser treatment ( plus blood flows freely, enhancing the possibility of picking up HIV or Hep C).
Medium and deep peels in skilled hands leads to excellent cosmetic results.
So you can see, there are many choices. However, microdermabrasion, despite the relatively low cost is not one of them. My advice: if you have a limited number of scars, use the less expensive methods mentioned above ( punch excision, punch grafting etc. If you have extensive scarring, I would save up your money for one of the more expensive procedures.