Dr. Pen M9 cartridges are single-use, chip-embedded bayonet needle heads made for the Dr. Pen M9 microneedling pen.
Each pack contains 20 cartridges in one needle configuration 18-pin, 36-pin, 42-pin or Round Nano and every cartridge features an anti-backflow seal, a serrated skin-contact tip and a triple-lock needle design for stable, hygienic collagen induction and serum infusion treatments.
Key Benefits of Dr Pen M9 Needle Cartridges
- Cleaner treatments: The anti-backflow design blocks the reverse flow of serum and fluid into the pen, helping to prevent cross-contamination between clients.
- Better serum uptake: The serrated tip keeps close contact with the skin surface to improve serum absorption during each pass.
- Steady needling: The triple-lock needle design holds the needle module firmly for smooth, consistent operation at high speed.
- Smart pen recognition: An embedded chip connects with the M9 through electronic contact points on the cartridge head.
- Clinic-ready quantity: 20 cartridges per pack in a single configuration, enough for a full run of treatments.
 Features : Dr. Pen M9 Cartridge
Anti-Backflow Bayonet Cartridge Design
An internal barrier stops serum and fluid from travelling back up into the handpiece. This protects the M9 motor and supports hygienic, one-client-per-cartridge practice.
Serrated-Tip Skin Contact
The scalloped (serrated) front edge of the cartridge glides over the skin while maintaining contact, so serums stay in the treatment zone where the micro-channels are created.
Triple-Lock Needle Stability
Three locking points secure the needle carrier inside the cartridge, reducing wobble and delivering stable, even penetration across the treatment area.
Chip-Controlled Bayonet Connection
The cartridge twists onto the M9 nose with a bayonet fitting. Gold contact points on the head link the embedded chip to the pen, while needle depth is set on the M9 handpiece itself.
Dr Pen M9 Cartridge Specifications
| Brand | Dr. Pen |
|---|---|
| Model | M9 Cartridge |
| Works With | Dr. Pen M9 microneedling pen |
| Pack Quantity | 20 cartridges (single configuration per pack) |
| Needle Configurations | 18-pin, 36-pin, 42-pin, Round Nano |
| Connection Type | Bayonet, chip-embedded with electronic contact points |
| Anti-Backflow | Yes |
| Tip Design | Serrated skin-contact tip |
| Needle Retention | Triple-lock needle design |
| Housing Material | Clear blue plastic |
| Power Source | None (driven by the M9 pen) |
| Use | Single use one cartridge per client / session |
| Condition | New |
Which Dr Pen M9 Needle Configuration Should You Choose?
| Variant | Needle Pattern | Commonly Chosen For |
|---|---|---|
| 20 × M9 18-Pin | 18 needles, open circular pattern | Focused work on acne scarring, textured areas and stretch marks |
| 20 × M9 36-Pin | 36 needles, dense round pattern | General facial rejuvenation, fine lines, pores and brightening |
| 20 × M9 42-Pin | 42 needles, high-density round pattern | Larger areas, overall skin texture and firmness |
| 20 × M9 Round Nano | Nano-textured round surface | Surface serum infusion, hydration and sensitive areas (non-penetrating) |
What’s in the Pack
- 20 × Dr. Pen M9 needle cartridges in the configuration you select (18-pin, 36-pin, 42-pin or Round Nano)
Use Cases for M9 Microneedling Cartridges
- Skin clinics, medispas and dermal therapists running collagen induction therapy (CIT) on the Dr. Pen M9
- Serum, skin-booster and hyaluronic infusion protocols with the Round Nano head
- Professional treatments for the appearance of acne scars, enlarged pores, fine lines and uneven texture
- Scalp microneedling protocols
- Training academies stocking consumables for M9 microneedling courses
Care, Hygiene & Safe Use
- Use a new cartridge for every client and every session never reuse or share cartridges.
- Check that the pack and cartridge are intact before use; discard any damaged cartridge.
- Twist the bayonet head fully onto the M9 until it locks, then set the depth on the pen.
- Dispose of used cartridges in an approved sharps container.
- Do not treat over active infection, open wounds or irritated skin; deeper settings should only be used by trained practitioners.
These cartridges are cosmetic skin care consumables and are not intended to diagnose, treat, cure or prevent any disease.
Frequently Asked Questions
What are Dr Pen M9 cartridges?
Dr Pen M9 cartridges are single-use, chip-embedded bayonet needle heads made for the Dr. Pen M9 microneedling pen. They are available in 18-pin, 36-pin, 42-pin and Round Nano configurations and include an anti-backflow seal.
How many cartridges are in each pack?
Each pack contains 20 cartridges, all in the single needle configuration you choose at checkout.
Do M9 cartridges fit the Dr. Pen M8, M8S or A9?
No. M9 cartridges use the M9’s own chip-controlled bayonet connection. The M8, M8S, A9 and other Dr. Pen models use different cartridges.
Which M9 cartridge is best for acne scars?
The 18-pin cartridge is commonly chosen for focused work on acne scarring, while the 36-pin and 42-pin suit broader rejuvenation and the Round Nano suits surface serum infusion.
What does the anti-backflow design do?
It blocks serum and fluid from flowing back into the pen, which helps prevent cross-contamination and keeps the M9 handpiece cleaner.
Can Dr Pen M9 cartridges be reused?
No. They are single-use consumables. Use a new cartridge for each client and session and dispose of it in a sharps container afterwards.
Related Aesthetic Products
Complete your microneedling setup with our topical numbing cream (500 g), the U225 PRP mesotherapy gun, the EZ negative pressure mesotherapy injector, disposable mesotherapy gun catheters and ultra-fine 29G–34G hypodermic needles.
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