[Product Question] Derma rollers intentionally cause tiny wounds -- but isn't that exactly what the walnut scrubs do?

Beauty Tips For Body Care
Okay, so walnut and apricot scrubs are the devil. We all know this. They cause microtears.But isn't that literally exactly what shallow dermarollers do? Tear up the skin so as to allow penetration of products applied afterward, and supposedly renew the skin by forcing it to repair itself? The longer ones do other things, like stimulating collagen, but that's a different story.My point here is -- are microtears actually so bad? If they're followed with a targeted essence and protective creams? Is there a difference besides the literal shape and grid-pattern of the tears you're making?
Girls Blog 2015
Submitted by basadama