Homework on derma rolling 功课贴微针

消毒我是先用沸水消毒，再用70%的酒精浸泡。
boil in hot water first then use 70% alcohol to sterilze
should start treatment over teh weekend, no shower in 24 hours

length of needles

各种长度的针 对应的皮肤状况和诉求










使用频率：

• 0.25mm: Can be used daily on the same skin area (recommended: once every two days)
• 0.5mm: Up to 3 times a week (twice if used vigorously)
• 1.0mm: Once a week
• 1.5mm: Once every 3-4 weeks (or 2 weeks, if used lightly)

http://shop.owndoc.com/cmspage.php?page_id=12
great website that sells derma roller and has lots of info

and of course the EDS forum
http://www.essentialdayspa.com/forum/viewthread.php?tid=22460&postdays=0&postorder=asc&&start=4625