Microneedling + topical fin/min: how to structure the routine?

I’ve been reading a lot about microneedling/dermastamping lately, and while the benefits seem promising, I’m seeing a lot of conflicting advice on how to actually incorporate it into a routine.

Here’s what I’m currently doing and what I’m considering:

  • Current treatment: I’m on Hims topical spray (0.3% finasteride + 7% minoxidil), applied once daily as recommended. The spray also contains 2.2% ketoconazole and 0.2% biotin.

  • Planned addition: I want to start dermastamping once a week (thinking Sundays). I’d skip the topical on that day since I’ve read a 24-hour gap is recommended post-needling.

  • Needle length: Planning to start at 0.6mm and gradually work up to 1.5mm.

  • Questions:

    1. Given the formulation I’m using, is it safe/okay to dermastamp?

    2. Will skipping one dose per week hurt my consistency/progress, or is that acceptable in the long run?

    3. How often should I replace the dermastamp (I was thinking every ~2 months)?

    4. Would you make any changes to this plan?

Curious to hear from anyone who’s combined min/fin with dermastamping and what’s worked best for you.