How long can I use my AMP MD Derma-Roller before it needs to be replaced?

The AMP MD Derma-Roller is constructed with the highest quality micro-exfoliating tips for maximum efficacy. When used nightly, the AMP MD Derma-Roller is designed to last for up to 12 months. If you use your AMP MD for demonstration purposes, you may find that your AMP MD maintains its precision for closer to six to nine months.