skeora dr Derma Pen Ultima A1/ A6 Microneedling Replacment NANO Cartridge Needles Round I 3D I 5D Micro Needle/Cartridge for Ultima A1/A6/M5/M7/N2 (A6 Nano Round, Pack of 5)

• Model Compatibility: Ensure the cartridges match your specific Dr. Pen model to guarantee proper fit and functionality.

• Sterility: Opt for cartridges that are individually sealed and designed for single use to maintain hygiene and prevent infections.

• Needle Depth: Consider the needle length based on your treatment needs. For instance, 0.25mm needles are commonly used for enhancing serum absorption and improving skin texture.

• Quantity: Purchasing in packs (e.g., 10 cartridges) can be cost-effective, especially if you plan regular treatments.

If you need further assistance in selecting the right cartridges or have questions about their usage, feel free to ask!