A Guide to Select the Right Dr. Pen Microneedling Cartridge

As one of the most popular skin treatments today, microneedling sure does work wonders for the skin. The treatment can help improve overall skin texture and even stimulate hair growth.

For professionals using Dr. Pen devices, selecting the correct microneedling cartridge is critical to optimizing results and ensuring treatment safety. With multiple cartridge configurations available for each model, the choice can feel overwhelming. This guide provides licensed skincare professionals with a clear overview of cartridge types and their applications.

What is a Microneedling Cartridge?

A microneedling cartridge is the essential component of a microneedling pen that houses sterile, fine-gauge needles. Each cartridge is designed to penetrate the skin at controlled depths, creating micro-injuries that stimulate collagen production, elastin synthesis, and cellular turnover.

Cartridges can be used across multiple treatment zones—not only the face, but also the neck, décolleté, abdomen, thighs, and scalp. These controlled micro-injuries support dermal remodelling, leaving the skin firmer, smoother, and more radiant over time.

Choosing the Right Cartridge

Each Dr. Pen microneedling pen model has designated cartridges. Cartridges are not interchangeable across models, and using the incorrect type can compromise both results and safety.

When selecting a cartridge, professionals should first identify the device model, then match the appropriate cartridge. The next step is to determine the treatment goals: acne scar revision, fine line reduction, skin texture improvement, pigmentation management, or hair stimulation.

Types of microneedling cartridge and functions

Dr. Pen's microneedling pen are grouped into four types:
nanoneedling cartridges, 9–12 pin cartridges, 16– 18 pin cartridges, and 24– 42-pin cartridges. Let's dive into all the types.

Nanoneedling Cartridges

Nanoneedling cartridges are ideal for enhancing topical product absorption and supporting surface-level rejuvenation. Instead of metal needles, they feature silicone-tipped nano-points that gently penetrate only the outermost layers of skin.

Available in round and square tips, nanoneedling cartridges are particularly effective around delicate or hard-to-reach areas such as the nose and lips. They are excellent for pairing with hydrating or brightening serums to maximize product efficacy.

9–12 pin cartridges

These cartridges are designed for precision work. With fewer, more concentrated needles, they are suited for targeted treatments such as:

• Atrophic acne scars

• Fine lines

• Deeper wrinkles

The smaller pin count provides a more intensive effect, making them an effective option for areas requiring aggressive stimulation and collagen induction.

16–18 pin cartridges

These cartridges provide balanced coverage, less aggressive than 9–12 pin options, but still highly effective. They are ideal for:

• Light scarring

• Pigmentation irregularities

• Enlarged pores

• General texture improvement

Their configuration allows for comfortable treatments while still delivering visible results.

24–42 pin cartridges

Designed for larger treatment areas, these cartridges are frequently used on the scalp, neck, and body. They are effective in:

• Stretch mark reduction

• Cellulite improvement

• Overall skin rejuvenation across larger zones

Higher pin counts distribute pressure more evenly, reducing discomfort during treatment. However, because each channel is smaller, multiple sessions may be required to achieve optimal results.

Professional Considerations

When selecting a cartridge, it is important to remember:

• Lower pin counts (e.g., 9–12 pin) deliver more intensive stimulation but can feel less comfortable.

• Higher pin counts (e.g., 24–42 pin) cover larger areas efficiently and with less discomfort, though they may require more frequent sessions to achieve equivalent results.

• Consistency is critical. Regular, structured treatments are essential to maximize results, regardless of cartridge type.

Conclusion

Selecting the correct microneedling cartridge is central to optimizing outcomes with Dr. Pen devices. By aligning cartridge choice with treatment goals, professionals can deliver effective results for concerns ranging from acne scars and wrinkles to pigmentation and stretch marks.

It is like finding the perfect skincare ally—choosing the right microneedling cartridge can make all the difference in achieving the skincare goals. 

When it comes to ensuring safety and quality, rest assured that all Dr. Pen Canada cartridges and all other products undergo rigorous testing against industry-leading standards. 

Every microneedling device we supply has been reviewed and authorised under Health Canada’s stringent medical device regulations, ensuring full compliance with national standards. They are made of high-quality stainless steel, and all are supplied exclusively to licensed aestheticians, dermatologists, and beauty professionals, meaning you can trust that the microneedling device from Dr. Pen Canada meets the highest safety standards. 

With the right device, cartridge, and treatment plan, microneedling offers professionals a versatile, results-driven solution for their clients’ skin health and rejuvenation needs. For assistance in selecting the most suitable cartridges, reach out to our knowledgeable customer support team. They're here to guide professionals in making the right choice for their practice.

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