What Is The Correct Way To Use Derma Roller?

[Vince_Reagan]

Should I press it hard enough so that blood comes out or I should not press that hard, just rolling hard enough so that blood does not come out. And is it completely safe for me to use it by myself or should I go to a dermatologist twice a week to get it done?

Also what are your thought and experiences on derma roller?

 

[Vince_Reagan]

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