Generic 0.25mm Microneedle Pen Cartridges 12-Pack — 36-Pin Stainless Steel, Threaded Screw-On Refills

These are 12 sterile, threaded 36-pin microneedle cartridges with 0.25mm stainless steel needles, designed to screw onto compatible electric microneedling pens for safe at-home or professional use.

Built for users who want a reliable, single-use refill option, this 12-pack of 0.25mm microneedling cartridges provides consistent performance and clean storage. Each cartridge uses 304 stainless steel micro-pins and a threaded screw-on base for a secure fit with compatible pens. Cartridges arrive individually gamma-sterilized and organized in a durable polypropylene (PP) box so refills stay dust-free and ready when you need them.

How do these cartridges fit my microneedling pen?

The cartridges use a threaded screw-on connector that twists into pens with matching threads. They are incompatible with snap-on systems (for example, M8/M8S snap-fit heads) and require a pen that accepts screw-in refills. Installation is tool-free: remove the old cartridge and twist the new one clockwise until secure.

• Threaded screw-on base for secure attachment
• Not compatible with snap-on pen models like M8/M8S
• Tool-free, clockwise twist installation
• Designed for electric microneedling pens with matching threads

What are the needle specifications and why they matter?

Each cartridge contains 36 ultra-fine pins made from 304 stainless steel with a 0.25mm pin length. That short needle depth is intended for superficial micro-channeling suitable for face and scalp surface applications. The dense 36-pin configuration delivers even coverage across the treatment area for consistent results when used as directed.

• 36 pins per cartridge for uniform coverage
• 0.25mm pin length for shallow, surface-level use
• 304 stainless steel pins for strength and precision
• Single-use, sterile pins to reduce contamination risk

What do I get in this value pack and how are the cartridges packaged?

The pack includes 12 individually sealed cartridges stored in a sturdy PP box that keeps them organized and protected between sessions. Each cartridge is gamma sterilized and ready to use straight from the pouch. The reusable box helps prevent dust and accidental damage when cartridges are not in use.

• 12 sealed, sterile cartridges — one-per-treatment convenience
• Gamma sterilization for each cartridge
• Durable PP storage box included for protection and organization
• Cost-effective refill set for at-home or professional use

How do I install and handle these cartridges safely?

Always follow your device manufacturer's instructions and hygiene best practices. Remove a fresh cartridge from its sterile pouch, align the threads with your compatible pen, and twist clockwise until snug. Dispose of used cartridges in an appropriate sharps container and never reuse single-use heads.

• Install by twisting cartridge into matching threaded pens
• Keep in original sterile pouch until ready to use
• Use once only; dispose of used cartridges safely
• Follow pen manufacturer guidance and hygiene protocols

Who is this for: This 12-pack is aimed at home users and beauty professionals who already own a compatible threaded electric microneedling pen and want a dependable supply of sterile, short-length 0.25mm cartridges. It's well suited for routine surface-level treatments on face and scalp where users prefer single-use, pre-sterilized heads in organized packaging. Not suitable for snap-on pen users or for applications requiring deeper needle lengths.