1) Don't re-use head, better use it 6-10 times per DRS Derma Roller's suggestion
2) Do not share DRS Derma Roller with other person for hygiene purposes
3) Do not roll too much more than indicated times. If treated skin shows hypersensitive response, consult with your doctor
4) Keep DRS micro needle part clean
5) Please place DRS Derma Roller be out of children’s reach
