Dermarolling, or microneedling, is a popular technique used to stimulate hair growth and improve scalp health. When using a 1.5 mm derma roller on the scalp, it's important to consider both the frequency and duration of treatment, as well as any potential need for breaks. Recommendations for Dermarolling: Frequency: Using a 1.5 mm derma roller weekly is quite frequent for a needle of this length. Typically, it's recommended to use longer needles (like 1.5 mm) less frequently, such as every 3-4 weeks, to allow the scalp adequate time to heal between sessions. Duration: Dermarolling can be continued over a long period, but it's advisable to evaluate the effectiveness and necessity of ongoing treatment periodically. If you've seen significant improvement, you might consider reducing the frequency or taking breaks. Breaks: Taking occasional breaks from dermarolling can benefit scalp health, allowing time for recovery and preventing potential overuse injuries or irritation. You might consider taking a break for a few weeks every few months. Long-term Use: While some people choose to continue dermarolling indefinitely, others find that after achieving desired results, they can reduce the frequency or stop altogether. It's important to monitor your scalp's response and adjust your routine accordingly. Consultation: Consulting with a dermatologist or hair specialist is recommended to tailor the dermarolling practice to your specific needs and to ensure you are using the correct technique and frequency for your scalp condition. Ultimately, the decision to continue, stop, or take breaks should be based on your personal results, scalp health, and any professional guidance you receive. Regular assessments will help you determine the best course of action for maintaining scalp and hair health.