Designed for Dr. Pen M8 & M7S

These cartridges are specifically listed for compatibility with the Dr. Pen M8 and M7S microneedling pens.

The cartridge connection is designed to fit the corresponding M8/M7S cartridge interface, allowing the used cartridge to be removed and replaced with a new one before the next procedure.

Important: M8/M7S cartridges should not be assumed to fit other Dr. Pen models. Cartridge interfaces can vary between device generations, so always verify your pen model before ordering.

Choose the Right Cartridge for Your Workflow

Different cartridge configurations provide different needle densities and contact patterns. Rather than treating one configuration as suitable for every procedure, professional users can select the cartridge according to the treatment area, desired coverage, and their established treatment protocol.

Cartridge	General Configuration	Typical Use Consideration
11 Pin	Low-density precision configuration	Targeted areas and precision-focused routines
16 Pin	Low-to-medium density	Concentrated microneedling applications
24 Pin	Medium density	Balance between precision and coverage
36 Pin	Higher density	Broader treatment coverage
42 Pin	High-density configuration	Even coverage across larger areas
Nano-5D	Nano-style	Surface-level topical application
Nano-R	Round nano	Gentle topical skincare routines
Nano-3D	3D nano-style	Surface skincare and product application
Nano-S	Silicone nano-style	Gentle surface application

Note: This table describes cartridge configuration and general application categories. It does not replace professional treatment protocols, device instructions, or medical advice.

20, 50 or 100 Cartridges Per Pack

Choose the pack quantity according to your usage frequency.

20-Pack – Convenient Replacement Supply

A practical option for individual users, occasional treatments, or professionals who want to test a specific cartridge configuration before purchasing in larger quantities.

50-Pack – Professional Working Supply

A balanced option for estheticians, beauty professionals, and salons that use the M8 or M7S regularly.

100-Pack – High-Volume Supply

Designed for professional environments with frequent cartridge replacement and higher consumable usage.

Buying larger quantities can also simplify inventory management by keeping your preferred cartridge configuration available when needed.

Why Cartridge Selection Matters

Microneedling cartridges are not simply interchangeable needle counts.

The number and arrangement of needles affect how the cartridge contacts the skin and how efficiently an area can be covered. A lower pin count generally provides a more concentrated contact pattern, while higher-density cartridges distribute contact across a broader area.

Nano cartridges are different from conventional needle configurations. They are intended for surface-level skincare applications rather than the same type of controlled skin penetration associated with conventional microneedling needle cartridges.

For professional use, cartridge selection should therefore be considered alongside:

• Treatment area
• Desired coverage
• Skin condition
• Treatment protocol
• Product application method
• Device settings
• Operator training
• Hygiene and infection-control procedures

Replacement Cartridges for Professional Skincare Workflows

For salons and estheticians, replacement cartridges are an essential consumable rather than an optional accessory.

Maintaining a sufficient supply of the correct cartridge configuration helps avoid interruptions in your treatment schedule and makes it easier to maintain consistent operating procedures.

The 20 / 50 / 100-pack options allow you to purchase according to actual consumption rather than keeping only one standard pack size.

For businesses offering multiple treatment protocols, stocking several configurations can also make cartridge selection more flexible.

Simple Cartridge Replacement

Before installing a replacement cartridge:

1. Turn off the Dr. Pen device.
2. Remove the existing cartridge according to the M8/M7S device instructions.
3. Inspect the replacement cartridge and packaging before use.
4. Install the cartridge securely into the device.
5. Confirm that the cartridge is properly seated before operating the pen.
6. Follow the manufacturer’s operating instructions and your professional treatment protocol.

Do not use a cartridge if it is damaged, contaminated, or if its packaging has been compromised when sterile packaging is supplied.

Cartridges are intended for appropriate single-use procedures where required by your hygiene and infection-control protocol. Do not reuse a cartridge between clients.

Professional Hygiene & Safety

Microneedling involves direct contact with the skin and requires appropriate hygiene procedures.

For professional applications:

• Use a new cartridge for each client where single-use practice is required.
• Do not share a used cartridge between clients.
• Inspect the cartridge before installation.
• Do not use damaged or deformed needles.
• Follow the manufacturer’s instructions for the Dr. Pen M8/M7S.
• Follow applicable local infection-control requirements.
• Store unused cartridges in their original packaging in a clean, dry environment.
• Keep unused cartridges away from moisture, excessive heat, and contamination.
• Dispose of used cartridges according to applicable sharps or regulated-waste procedures.

For professional treatments, cartridge selection and treatment parameters should be determined by a properly trained practitioner.

Which Dr. Pen M8 / M7S Cartridge Should You Choose?

If you are replacing cartridges and already know the configuration used in your treatment protocol, select the same pin type.

If you are building a professional cartridge inventory, consider stocking multiple configurations rather than relying on one cartridge type for every application.

For concentrated coverage

Consider 11-pin or 16-pin cartridges when your established protocol calls for a lower-density configuration.

For balanced coverage

24-pin cartridges provide a middle-ground configuration between concentrated and higher-density options.

For broader coverage

36-pin and 42-pin cartridges provide higher needle density for broader contact across the treatment area.

For nano-style skincare applications

Choose from Nano-5D, Nano-R, Nano-3D, or Nano-S according to the specific application and cartridge design.

The correct cartridge is determined by the procedure—not simply by choosing the highest or lowest pin count.

Built for Routine Cartridge Replacement

A professional microneedling device is only as practical as its consumable supply.

With nine cartridge configurations and three pack-size options, these M8/M7S replacement cartridges make it easier to maintain a consistent supply for:

• Beauty salons
• Esthetician practices
• Spa and skincare studios
• Professional facial treatment rooms
• Cosmetic skincare businesses
• Training environments
• Regular home skincare users

Whether you need a small 20-pack for occasional use or a 100-pack for higher-volume operations, you can select the configuration that matches your workflow.

Product Specifications

Specification	Details
Product Type	Replacement Microneedling Cartridges
Compatible Devices	Dr. Pen M8 / M7S
Available Configurations	11 Pin / 16 Pin / 24 Pin / 36 Pin / 42 Pin / Nano-5D / Nano-R / Nano-3D / Nano-S
Pack Options	20 Pack / 50 Pack / 100 Pack
Application	Microneedling and nano-style skincare applications, depending on cartridge type
Replacement Type	Disposable replacement cartridge
Device Category	Electric Microneedling Pen Consumable
Recommended Users	Professional Estheticians, Salons, Spas, Skincare Practitioners, Qualified Users
Compatibility Note	Designed for Dr. Pen M8 / M7S; verify device model before ordering

Frequently Asked Questions

Are these cartridges compatible with Dr. Pen M8?

Yes. These replacement cartridges are designed for the Dr. Pen M8. Verify the exact device model and cartridge interface before ordering.

Are these cartridges compatible with Dr. Pen M7S?

Yes. They are designed for use with the Dr. Pen M7S as well as the M8.

Can I use M8/M7S cartridges on other Dr. Pen models?

Do not assume compatibility with other Dr. Pen models. Cartridge interfaces differ between model series. Check the specific device model before purchasing.

What needle options are available?

There are nine options: 11 Pin, 16 Pin, 24 Pin, 36 Pin, 42 Pin, Nano-5D, Nano-R, Nano-3D, and Nano-S.

What is the difference between 11-pin and 42-pin cartridges?

The primary difference is the needle density and contact pattern. An 11-pin cartridge has a more concentrated configuration, while a 42-pin cartridge provides a higher-density arrangement for broader coverage.

Which cartridge should I choose for professional microneedling?

There is no single cartridge configuration suitable for every procedure. Select the cartridge according to your treatment protocol, treatment area, desired coverage, device instructions, and professional training.

Are Nano cartridges the same as regular microneedling cartridges?

No. Nano-style cartridges are designed for surface-level skincare applications and should not automatically be treated as equivalent to conventional needle cartridges.

Are the cartridges reusable?

These cartridges are intended as replacement consumables. Do not reuse cartridges between clients. Follow applicable hygiene, infection-control, and device-manufacturer requirements.

Which pack size should I buy?

Choose 20-pack for occasional use or testing a configuration, 50-pack for regular professional use, and 100-pack for higher-volume treatment environments.

How do I install an M8/M7S replacement cartridge?

Turn off the device, remove the existing cartridge according to the device instructions, align the replacement cartridge with the M8/M7S connection, and confirm that it is securely seated before operation.

Order the Right M8 / M7S Cartridge

Keep your Dr. Pen M8 or M7S ready for the next treatment with the correct replacement cartridge configuration.

Choose your needle type:
11 Pin · 16 Pin · 24 Pin · 36 Pin · 42 Pin · Nano-5D · Nano-R · Nano-3D · Nano-S

Choose your quantity:
20 Pack · 50 Pack · 100 Pack

Compatible with: Dr. Pen M8 / M7S

If you are unsure which cartridge configuration matches your device or treatment workflow, contact our team before ordering.