In the study they say they used the derma roller on the scalp "until mild erythema was noted" that doesn't really suggest they drew blood during treatment, but until mild redness was noticed on the skin.
Results 1 to 10 of 2539
Thread: Dermarolling Community TrialThreaded View
Similar Threads
|
» IAHRS» The Bald Truth» americanhairloss.org
|
Bookmarks