How to Choose Dr. Pen Cartridges: The Complete Guide
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This guide explains the key factors for selecting the right Dr. Pen cartridges for cosmetic microneedling. It focuses on practical choices such as needle length, pin count, speed, and needle thickness, so you can match a cartridge to your skin goals and treatment areas.
Why Choose Dr. Pen Cartridges?
Dr. Pen is an automated cosmetic microneedling device. Its motor drives needles to move vertically and consistently, creating uniform micro-channels on the skin’s surface. Compared with manual rollers, automated entry helps reduce lateral pulling, supports comfort, and offers adjustable needle lengths and speeds to suit different areas.
How Automated Microneedling Works (Cosmetic Use)
- Vertical needling: Helps minimize skin dragging compared with angled entry.
- Adjustable needle length: Tailor depth for different zones and goals.
- Stable speed control: Consistent in–out motion for uniform micro-channels.
- Hard-to-reach areas: Suitable for nose creases, eye area (with shallow settings), and localized spots.
Advantages of Dr. Pen Cartridges
- Adjustable length: One device can support both surface-level glow care and deeper cosmetic work.
- Flexible targeting: Reach small, curved zones and focus on localized concerns.
- Professional-style experience: Widely used in cosmetic settings; supports consistent workflows.
Cartridge Types at a Glance
Dr. Pen offers a wide range of cartridges for cosmetic use:
- Microneedling cartridges (12): 9-pin, 11-pin, 12-pin, 16-pin, 18-pin, 24-pin, 36-pin, 42-pin, Nano S, Nano R, Nano 3D, Nano 5D.
- Tattoo/permanent makeup needles (various): e.g., L1, R3, F5, F7, F9 (for qualified cosmetic/PMU applications).
How to Choose: Four Core Factors
- Speed (movement level)
- Pin count (number of needles)
- Needle length
- Needle thickness (gauge)
1) Recommended Speed by Area
Longer needle settings generally pair with higher speeds to create sufficient micro-channels in the same time frame. Adjust gradually and prioritize comfort.
- Forehead: Level 4–5
- Nose: Level 4–5
- Eye area (shallow only): Level 2–3
- Lips (shallow only): Level 1–2
- Cheeks: Level 4–5
- Scar-focused work (experienced users/pro use): Level 5–6
- Stretch marks (experienced users/pro use): Level 6–7
2) Pin Count (Pins)
More pins spread pressure over a larger area, which many users find more comfortable. Fewer pins can feel more intense but may be preferred for targeted, deeper cosmetic work by experienced users or professionals.
- 9 / 11 / 12 pins: Focused, deeper cosmetic work on stubborn uneven texture.
- 16 / 18 pins: Deep cosmetic work with added support for pore appearance.
- 24 / 36 / 42 pins: Medium to surface-level care such as smoothing texture and supporting glow and hydration.
- Nano S / 3D / 5D: Non-invasive, surface care for radiance and product absorption.
- Nano R: Non-invasive daily care to support smoother-looking skin.
3) Needle Length (Depth)
Select length based on cosmetic goals and treatment area, not specific serum ingredients. As a general guideline:
- > 1.0 mm: Recommended for professional/clinic use.
- ≤ 0.75 mm: Often chosen for at-home cosmetic routines (follow device guidance).
- Nano tips: Beginner-friendly, non-invasive surface care.
Common Cosmetic Goals & Suggested Lengths
| Goal (Cosmetic) | Suggested Length |
|---|---|
| Surface renewal / support | Nano, 0.20–0.30 mm |
| More even-looking tone | Nano, 0.20–0.75 mm |
| Softening the look of fine lines | 0.30–0.75 mm |
| Brightening spot appearance | 0.30–0.75 mm |
| Refining uneven texture | 0.30–3.00 mm (deeper work for pros) |
| Reducing the look of visible pores | 0.30–0.75 mm |
| Stretch-mark appearance | 1.00–1.50 mm |
| Hair or beard care (cosmetic) | Nano, 0.20–0.30 mm |
| Eye-area cosmetic care | Nano, 0.20–0.30 mm |
| Facial firm, glow, hydration support | 0.50–1.00 mm |
| Deeper wrinkles / body texture work | 1.00–3.00 mm (pro use) |
| Scar/PMU/tattoo-related cosmetic work | 1.00–3.00 mm (pro use) |
4) Needle Thickness (Gauge)
- Thinner needles: Often feel gentler; great for beginners or sensitivity.
- Standard needles: More robust feel; preferred for experienced users and deeper cosmetic work.
Quick Matching Tips
- New to microneedling? Start with Nano or 0.25–0.50 mm and moderate speed.
- Target small zones (nose folds, localized texture)? Choose lower pin counts (9–12) with careful speed control.
- Surface glow and serum absorption? Use Nano or 24–42 pins at shallow depth.
- Body or stretch marks (cosmetic work): Longer lengths and higher speeds are typically used by pros.
Important Use Notes
- For hygiene, use single-use, EO-sterilized, sealed cartridges only.
- Always follow your device manual for depth and speed settings.
- Do not use on irritated, broken, or infected skin.
- At-home users should stay within beginner-friendly ranges and patch test skincare first.
- Lengths above 1.0 mm and advanced techniques are best left to trained professionals.
Summary
Choosing the right Dr. Pen cartridge means balancing speed, pin count, length, and needle thickness with your cosmetic goals and comfort level. Start conservatively, adjust gradually, and keep hygiene a priority. With the right match, you can support a smoother, more refined-looking complexion as part of a consistent cosmetic routine.
Disclaimer
This content is for cosmetic information only and is not medical advice. If you have specific skin conditions or concerns, consult a qualified professional. Follow all device instructions and local regulations.