Dermarolling / Microneedling / Re: Saline injections for acne scars
« on: August 18, 2012, 01:08:21 PM »It serves the same purpose as the suction method - to stretch out the fibrotic bands that tether the scar down and make it indented and to trigger collagen production. It is injected straight after a subcision or needling.
If you inject the solution with quite some pressure, you will cause a very mild injury to the tissue (which is good because it triggers collagen) and it can take several days to heal. During this time, the scar will be flat. However, if you managed to loosen the fibrotic tethering, the scar will end up permanently slightly less indented, especially if you repeat the injections for several months.