Dr. Pen Compatibility Reference · 2026 Edition
Choosing the correct Dr. Pen replacement cartridge is one of the most important steps before using a compatible microneedling pen. Many cartridges look similar in product photos, but they are not always interchangeable. Different Dr. Pen models may use different connectors, pin layouts, nano tips, serum chambers, and locking systems.
This guide explains how Dr. Pen cartridge compatibility works, which cartridge family fits each model, and how to choose an appropriate pin or nano type based on the device you own and the cosmetic routine you are planning.
At DrPenGlow.com, we help U.S. shoppers identify compatible Dr. Pen devices and replacement cartridges through model-specific product information and customer support.
Quick Answer: Are All Dr. Pen Cartridges Compatible?
No. Dr. Pen cartridges are not universal.
Some models share one cartridge family, while others require dedicated cartridges. Dr. Pen M8S, A8S, A9, and A11 share one family. Dr. Pen M8 and M7S share a different family. Dr. Pen A10 uses A10-specific cartridges. Hydra Pen H3 and H5 share serum-chamber cartridges, while Dr. Pen H6 requires H6-specific cartridges.
The safest rule: match the cartridge family to the exact model name on your pen before choosing pin count, nano type, or pack size.
Key Compatibility Facts
- M8 and M8S are different systems. M8 cartridges fit M8/M7S; M8S cartridges fit M8S/A8S/A9/A11.
- A10 and A11 do not use the same family. A10 requires cartridges labeled for A10.
- H6 is separate from H3/H5. H3 and H5 share one serum-chamber family; H6 uses its own design.
- Pin count does not determine compatibility. Two cartridges can both be labeled 36-Pin and still use different connectors.
- Each cartridge is single use. Use a new, sealed cartridge for each session and dispose of it safely.
Why Cartridge Compatibility Matters
Using the wrong cartridge can create several problems:
- The cartridge may not lock into the device correctly.
- Needle movement may feel unstable or inconsistent.
- The connector may not match the pen motor or depth mechanism.
- The serum-flow system may not work correctly on Hydra-style devices.
- The pen or cartridge connector may be damaged if the cartridge is forced.
- The routine may feel less comfortable or less predictable.
Because replacement cartridges are designed for single use, confirming the correct family before ordering supports hygiene, device fit, and consistent operation.
Dr. Pen Cartridge Compatibility Chart
Use this table as a model-identification reference. Before ordering, confirm the exact model printed on the pen body, box, order confirmation, or original product listing.
| Dr. Pen model | Required cartridge family | Common cartridge types | Compatibility notes |
|---|---|---|---|
| Dr. Pen A11 | M8S / A8S / A9 / A11 family | 12-Pin, 18-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Shared with M8S, A8S, and A9. Not compatible with M8/M7S, A10, A6/A6S, A1, or H-series cartridges. |
| Dr. Pen M8S | M8S / A8S / A9 / A11 family | 12-Pin, 18-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Uses the same family as A11, A8S, and A9. It does not use M8 cartridges. |
| Dr. Pen A8S | M8S / A8S / A9 / A11 family | 12-Pin, 18-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Shares the same family as M8S, A9, and A11. |
| Dr. Pen A9 | M8S / A8S / A9 / A11 family | 12-Pin, 18-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Uses the same main family as A11 and M8S. |
| Dr. Pen A10 | A10-specific family | 12-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R | A10 uses dedicated cartridges. Do not assume an A10 cartridge fits A11, M8S, A6S, or M8. |
| Dr. Pen M8 | M8 / M7S family | 11-Pin, 16-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Shared with M7S. This is not the M8S cartridge family. |
| Dr. Pen M7S | M8 / M7S family | 11-Pin, 16-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Shared with M8. Not compatible with M8S/A11 cartridges. |
| Dr. Pen M5 | M5 / M7 family | 9-Pin, 12-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Shares the same general family as M7. Not the same as M8/M7S. |
| Dr. Pen M7 | M5 / M7 family | 9-Pin, 12-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Shares cartridges with M5. Not the same as M8/M7S. |
| Dr. Pen A6S | A6S-specific family | 11-Pin, 16-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Designed for A6S. Do not confuse it with A6 cartridges. |
| Dr. Pen A6 | A6-specific family | 9-Pin, 12-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Designed for A6. A6 and A6S cartridges are different. |
| Dr. Pen A1 | A1-specific family | 12-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, Nano-S | Use cartridges specifically labeled for the A1. |
| Dr. Pen H6 | H6-specific family | 18-Pin, 36-Pin, 42-Pin, Nano | H6 uses its own cartridges and does not share the H3/H5 family. |
| Hydra Pen H3 / H5 | H3 / H5 serum-chamber family | 12-Pin, 24-Pin, 36-Pin, Nano-R, Nano-S | H3 and H5 share cartridges with a 3 ml serum chamber. Not compatible with H6. |
| Dr. Pen Q1S / Bio Pen Q2 | Q1S / Q2 family | 9-Pin, 14-Pin, 25-Pin, and Nano options depending on the listing | Q-series cartridges are separate from standard M-series, A-series, and Hydra Pen families. |
Important: A matching pin count does not prove compatibility. Always match the connector family and model label first.
How to Choose the Right Dr. Pen Cartridge
- Identify the exact device model. Check the model name printed on the pen body, product box, order confirmation, or original listing.
- Match the cartridge family. Choose the family assigned to that model. Do not shop by pin count alone.
- Choose a compatible pin or nano type. Lower pin counts are generally selected for smaller areas and more controlled passes; higher pin counts cover broader areas. Nano tips are intended for gentle, surface-level cosmetic serum routines and do not function like traditional pin cartridges.
- Confirm the listing before checkout. The product title and compatibility section should name your model explicitly.
- Use one new cartridge per session. Do not reuse or share cartridges.
Common Dr. Pen Cartridge Types: Uses and Coverage
The appropriate option depends on the exact pen model, cartridge family, target area, comfort level, and device instructions.
| Cartridge type | General coverage | Common cosmetic focus | Who may consider it |
|---|---|---|---|
| 9-Pin | Small, precise areas | Localized texture, small facial contours, and controlled passes around the nose or mouth | M5/M7 or A6 users seeking targeted control |
| 11-Pin | Targeted coverage | Localized texture and small facial zones | M8/M7S or A6S users who want a focused cartridge |
| 12-Pin | Controlled facial coverage | Smaller facial areas, visible texture, and general beginner-oriented control | Users whose compatible family includes a 12-Pin option |
| 16-Pin | Balanced precision and coverage | General facial texture and contours | M8/M7S or A6S users wanting more coverage than 11-Pin |
| 18-Pin | Precision with smoother contact | Facial texture, pores, and targeted areas | A11/M8S/A8S/A9 or H6 users whose listing includes 18-Pin |
| 24-Pin | General facial coverage | Cheeks, forehead, chin, and broad facial routines | Users looking for an all-purpose compatible option |
| 36-Pin | Wider coverage | Larger facial zones, neck, and efficient surface coverage | Users who prefer fewer passes over larger areas |
| 42-Pin | Broad common coverage | Large treatment zones and maximum coverage per pass | More experienced users following compatible device instructions |
| Nano-R | Round surface-contact tip | Gentle, surface-level serum application and cosmetic maintenance | Users focusing on curved facial areas such as cheeks and forehead |
| Nano-S | Square surface-contact tip | Gentle cosmetic care on flatter or delicate areas | Users focusing on surface-level routines and sensitive-feeling zones |
Cosmetic-use notice: Results and tolerance vary by skin, device settings, frequency, technique, and aftercare. This guide is educational and is not medical advice or a substitute for the device manual or professional care.
Dr. Pen Compatibility by Model Family
Dr. Pen A11, M8S, A8S, and A9
Dr. Pen A11, M8S, A8S, and A9 share the same main cartridge family. Common options include 12-Pin, 18-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S.
Best for: owners of A11, M8S, A8S, or A9 who want several compatible pin and nano choices.
Not compatible with: M8, M7S, A10, A6, A6S, A1, H6, or Hydra Pen H3/H5.
Dr. Pen A10
Dr. Pen A10 uses A10-specific replacement cartridges. Available options on the current product listing include 12-Pin, 24-Pin, 36-Pin, 42-Pin, and Nano-R.
The A10 family should not be treated as universal. Even if another connector looks similar, choose cartridges specifically labeled for Dr. Pen A10.
Dr. Pen M8 and M7S
Dr. Pen M8 and M7S share the same replacement cartridge family. Common options include 11-Pin, 16-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S.
M8 and M8S are not the same. M8 uses the M8/M7S family; M8S uses the M8S/A8S/A9/A11 family.
Dr. Pen M5 and M7
Dr. Pen M5 and M7 share the same general cartridge family. Common types include 9-Pin, 12-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S.
The M5/M7 family should not be confused with either the M8/M7S family or the M8S/A11 family.
Dr. Pen A6S
Dr. Pen A6S uses A6S-specific replacement cartridges. Common options include 11-Pin, 16-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S.
A6S cartridges should not be used with A6, A1, A10, M8S, A11, or M8.
Dr. Pen A6
Dr. Pen A6 uses A6-specific replacement cartridges. Common options include 9-Pin, 12-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S.
A6 cartridges are not cross-compatible with A6S, A1, A10, M7, M8, M8S, or A11.
Dr. Pen A1
Dr. Pen A1 uses A1-specific replacement cartridges. Common options include 12-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S.
Always select cartridges specifically labeled for Dr. Pen A1.
Dr. Pen H6
Dr. Pen H6 uses H6-specific cartridges and does not share cartridges with Hydra Pen H3 or H5. Common H6 options include 18-Pin, 36-Pin, 42-Pin, and Nano.
Because the H6 uses an integrated serum-flow design, choose cartridges labeled specifically for H6.
Hydra Pen H3 and H5
Hydra Pen H3 and H5 share compatible replacement cartridges. Common options include 12-Pin, 24-Pin, 36-Pin, Nano-R, and Nano-S.
These cartridges include a transparent 3 ml serum chamber and are designed for H3/H5 devices. They are not compatible with H6.
Dr. Pen Q1S and Bio Pen Q2
Q1S and Bio Pen Q2 use the same Q1S/Q2 cartridge family. Current options include 9-Pin, 14-Pin, 25-Pin, and Nano types depending on the product listing.
Q-series cartridges are separate from M-series, A-series, H6, and Hydra Pen H3/H5 cartridges.
Nano-R vs Nano-S Cartridges
Nano cartridges differ from traditional pin cartridges and are generally selected for gentle, surface-level cosmetic serum routines.
- Nano-R: a round nano tip often chosen for curved facial areas such as the cheeks and forehead.
- Nano-S: a square nano tip often chosen for flatter or delicate areas where even surface contact is preferred.
Before ordering, confirm that the nano shape is offered within the cartridge family for your exact pen model.
How Often Should Dr. Pen Cartridges Be Replaced?
Dr. Pen cartridges are designed for single use. Do not reuse or share a cartridge.
- Use one new, sealed cartridge per session.
- Do not use a cartridge if the package is open, damaged, or appears compromised.
- Do not touch the pin or nano surface before use.
- Dispose of used pin cartridges in accordance with local sharps-disposal rules.
- Follow the cleaning and cartridge-installation instructions supplied with the device.
How to Avoid Buying the Wrong Dr. Pen Cartridges
- Read the model name carefully: M8 and M8S are different; A10 and A11 are different; H6 and H3/H5 are different.
- Match the cartridge family: compatibility is determined by the connector family, not only by pin count.
- Check the connector and lock: similar-looking cartridge bodies can use different locking systems.
- Choose the tip after confirming the family: select pin count or nano shape only from options made for your device.
- Read the product compatibility section: your exact pen model should be named clearly.
- Ask before ordering when uncertain: send a photo of the pen model label to customer support rather than forcing an uncertain match.
Best Dr. Pen Cartridge Choice by User Type
For beginners: first confirm the exact model. Then consider a compatible lower or mid-range pin count, such as 12-Pin, 16-Pin, 18-Pin, or 24-Pin, depending on the family. A compatible Nano option may suit users seeking a gentler surface-level routine.
For small or targeted areas: compatible 9-Pin, 11-Pin, 12-Pin, or 18-Pin cartridges provide fewer contact points and more controlled coverage.
For general facial coverage: compatible 24-Pin and 36-Pin cartridges are commonly selected for cheeks, forehead, chin, and jawline.
For broader coverage: compatible 36-Pin and 42-Pin cartridges cover more surface area per pass.
For surface-level cosmetic serum routines: choose a compatible Nano-R, Nano-S, or model-specific Nano cartridge.
For integrated serum delivery: use H3/H5 cartridges only with Hydra Pen H3/H5, and H6-specific cartridges only with Dr. Pen H6.
Dr. Pen Cartridge Compatibility FAQ
Are all Dr. Pen cartridges universal?
No. Dr. Pen cartridges are not universal. Some models share a cartridge family, while others require dedicated cartridges.
Do Dr. Pen A11 and M8S use the same cartridges?
Yes. Dr. Pen A11 and M8S are part of the same cartridge family, along with A8S and A9. Compatible options include 12-Pin, 18-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S.
Do Dr. Pen M8 and M8S use the same cartridges?
No. Dr. Pen M8 and M8S do not use the same cartridges. M8 shares cartridges with M7S, while M8S shares cartridges with A11, A8S, and A9.
Do Dr. Pen M8 and M7S use the same cartridges?
Yes. Dr. Pen M8 and M7S share the same cartridge family, including 11-Pin, 16-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S options.
Do Dr. Pen M5 and M7 use the same cartridges?
Yes. Dr. Pen M5 and M7 share the same general cartridge family, including 9-Pin, 12-Pin, 24-Pin, 36-Pin, 42-Pin, Nano-R, and Nano-S options.
Is the Dr. Pen A10 cartridge compatible with A11 or M8S?
No. Dr. Pen A10 uses A10-specific cartridges. Do not assume A10 cartridges fit A11, M8S, A6S, M8, or other models.
Does Dr. Pen H6 use the same cartridges as H3 or H5?
No. Dr. Pen H6 uses H6-specific cartridges. Hydra Pen H3 and H5 share their own serum-chamber cartridges, but H6 is separate.
Are Hydra Pen H3 and H5 cartridges the same?
Yes. Hydra Pen H3 and H5 share compatible replacement cartridges, including 12-Pin, 24-Pin, 36-Pin, Nano-R, and Nano-S options with a 3 ml serum chamber.
Can I reuse Dr. Pen cartridges?
No. Dr. Pen cartridges are designed for single use. Use one new, sealed cartridge per session and dispose of it safely after use.
What is the best Dr. Pen cartridge for beginners?
The best cartridge depends first on the device model. Many beginners prefer a compatible lower or mid-range pin count, such as 12-Pin, 16-Pin, 18-Pin, or 24-Pin. Nano cartridges are a gentler option for surface-level cosmetic serum routines.
What is the difference between pin cartridges and nano cartridges?
Pin cartridges are used for microneedling-style routines. Nano cartridges are generally selected for gentle, surface-level cosmetic serum application and do not function in the same way as traditional pin cartridges.
Where can I buy compatible Dr. Pen replacement cartridges in the U.S.?
You can shop selected Dr. Pen replacement cartridges at DrPenGlow.com. Always check the product title, compatibility section, and cartridge family before ordering.
Final Recommendation
The easiest way to choose the correct Dr. Pen cartridge is to start with the exact device model and then select the matching connector family.
- A11, M8S, A8S, or A9: choose the M8S/A8S/A9/A11 family.
- A10: choose A10-specific cartridges.
- M8 or M7S: choose the M8/M7S family.
- M5 or M7: choose the M5/M7 family.
- A6S, A6, or A1: choose cartridges specifically labeled for that model.
- H6: choose H6-specific cartridges.
- Hydra Pen H3 or H5: choose H3/H5 serum-chamber cartridges.
- Q1S or Bio Pen Q2: choose the Q1S/Q2 family.
Never force a cartridge into a pen. When the model label or connector is uncertain, confirm compatibility before purchasing or installing the cartridge.
Shop Compatible Cartridges and Devices
How This Guide Was Prepared
The Dr.Pen Glow Editorial Team organized this guide by exact model name and cartridge connector family, then aligned the family descriptions with the compatibility information shown on the linked DrPenGlow product pages. The guide does not assume that cartridges are interchangeable merely because their bodies or pin counts look similar.
Compatibility listings can change when manufacturers revise accessories or packaging. Check the current product page and the model label on your device before ordering.
Safety Note
Do not reuse or share cartridges. Do not use a cartridge with opened or damaged packaging. Avoid use on irritated, infected, sunburned, or broken skin, and follow the instructions supplied with the device. Compatibility information does not establish that a specific device is suitable for a particular medical condition or treatment.
For general U.S. safety information, see the FDA consumer guidance on microneedling devices.
