Device-specific fit
Only select replacements made for the named Dr. Pen model.
DERMA ETERNA MODEL-SPECIFIC REPLACEMENT CARTRIDGES
SINGLE-USE CARTRIDGESChoose the right fit · Individually selected needle configuration · Professional use
PROFESSIONAL ACCESSORIES
Dr. Pen A7 Replacement Cartridges | 10-Pack & 20-Pack
One pack, one selected cartridge configuration. Keep the right replacements ready for your exact device model.
$29.99
MADE FOR YOUR DEVICE
Precision starts with compatibility.
Needle cartridges are not universally interchangeable. Select the configuration that matches your model, verify the connection type and follow all supplied manufacturer instructions for professional handling.
One cartridge per procedure
Do not share or reuse disposable needle cartridges.
Know your pack
Your selection will appear in the cart, including the chosen configuration.
DETAILS & CONTENTS
Product information
FOR PROFESSIONAL USE ONLY.
Dr. Pen A7 Replacement Cartridges — 10-Pack
Keep compatible replacement cartridges available for your professional Dr. Pen A7 device. Choose your cartridge configuration from the selector above. Each package is for 10 matching cartridges, not a mixed assortment.
Choose the configuration
- 12-pin
- 36-pin
- Nano
Designed for the A7 family
This listing is for A7-specific cartridge options. Do not assume compatibility with other Dr. Pen models, including M8, M8S or differently named HydraPen instruments.
Cartridge handling
Use only manufacturer-compatible needle cartridges according to their instructions. Never share or reuse disposable needle cartridges. Inspect packaging before use and follow clinical infection-control procedures.
Cartridge connector design, needle configuration and exact supplier packaging should be checked against the chosen manufacturing lot before shipping. Manufacturer product photography to follow.
Questions?
Ask our team about cartridge compatibility, or read our shipping and refund policies.
COMMON QUESTIONS
Choosing cartridges
Will these fit a different Dr. Pen model?+
Not necessarily. Always check the exact device and cartridge interface before purchase.
Do I receive mixed pin types?+
No. You receive the single configuration you select in the product options.
Can cartridges be reused?+
No. Do not reuse or share disposable needle cartridges.
Where can I confirm shipping?+
Visit our shipping policy or contact our team.
Dr. Pen A7 Replacement Cart...$29.99