No, not really. I guess you could say it is experimental. That being said I have seen it remove pain of Pityriasis rosea in only 5-6 days. Most people suffering from Pityriasis rosea will have intense itching and pain for up to a whole month, and my friend who said he would wake up in the middle of the night due to the pain and itching; immediately when he sprayed some MMS2 on it the itching went away and he could go back to sleep.
The itching and pain was gone completely within 7 days. Not the sores but the itching and pain.
He tried spraying MMS1 on it on day 1, and he said it would burn immensly. He actually tried MMS2 as a last resort and it worked wonders.
I have also seen it take away cold sores in one to two days. Basically, I cannot guarantee that it will work for your acne but I sure wouldn´t be surprised if it did.
Other than my reported sightings, you might find some fascinating informaiton about MMS2 in this post:
www.genesis2forum.org/index.php?option=com_kunena&func=view&catid=31&id=13306&Itemid=66